Magic of Making – Glass Marbles
An evening pause: Yesterday we saw wood being turned into high energy pellets. Today, watch glass being turned into beautiful round sculptures.
Hat tip Tom Biggar.
Category: Behind The Black
SpaceX and NASA will reassess weather for launch in morning
Because of the 50-50 weather conditions for launching the first manned Dragon mission to ISS tomorrow at 3:22 pm (Eastern), managers at both SpaceX and NASA have decided to maintain the schedule but reassess whether they will proceed come morning.
Thus, it is possible they might scrub the launch attempt very early in the countdown, and instead focus on the Sunday, May 31st launch opportunity. We shall have to wait.
In the meantime the embed of the live stream will appear here at Behind the Black at around midnight (Eastern). If the launch proceeds, the feed begins officially at 11:00 am (Eastern) tomorrow.
Because of the 50-50 weather conditions for launching the first manned Dragon mission to ISS tomorrow at 3:22 pm (Eastern), managers at both SpaceX and NASA have decided to maintain the schedule but reassess whether they will proceed come morning.
Thus, it is possible they might scrub the launch attempt very early in the countdown, and instead focus on the Sunday, May 31st launch opportunity. We shall have to wait.
In the meantime the embed of the live stream will appear here at Behind the Black at around midnight (Eastern). If the launch proceeds, the feed begins officially at 11:00 am (Eastern) tomorrow.
Explosion during test of 4th Starship prototype
Capitalism in space: SpaceX engineers experienced another explosion during testing of their fourth Starship prototype today, completely destroying the protoype.
They already have their fifth prototype almost complete, so I expect they will clean up the debris, analyze again what went wrong, and start testing again.
At a certain point however these explosions have got to end, or else the project will begin to be in trouble.
Capitalism in space: SpaceX engineers experienced another explosion during testing of their fourth Starship prototype today, completely destroying the protoype.
They already have their fifth prototype almost complete, so I expect they will clean up the debris, analyze again what went wrong, and start testing again.
At a certain point however these explosions have got to end, or else the project will begin to be in trouble.
More evidence masks are merely a symbolic gesture
A new study has found that both improvised and surgical masks are ineffective in stopping the spread of COVID-19.
They found that “neither surgical nor cotton masks effectively filtered SARS–CoV-2 during coughs by infected patients.” They also “found greater contamination on the outer than the inner mask surfaces,” suggesting that any contact with a mask worn for a long time will likely mean the mask increases the chance of spreading the virus.
Their conclusion?
[B]oth surgical and cotton masks seem to be ineffective in preventing the dissemination of SARS–CoV-2 from the coughs of patients with COVID-19 to the environment and external mask surface.
Granted the experiment only tested four individuals in a controlled situation, but what they found matches what many others have been saying. It also illustrates the uncertainty of the science. Considering that the World Health Organization (WHO) states now that healthy people should not wear masks, and that there are also health risks for those that do, it once again seems very inappropriate (I am using a very mild word here) for our leaders or anyone to now demand that we all wear them, all the time, in all situations, blindly.
If others wish to wear masks, all power to them. I however will not submit to something I consider irrational. And I suspect sadly that I am mostly alone in this, because I think that most who say they agree with me will still cooperate and put on a mask when told to do so. I will not. At the moment I am fighting with two doctors, who will not see me for regular doctors appointments unless I wear a mask. I have told them I will not, have cited the medical reasons why (I have asthma), and they so far have not bent.
If it means I no longer have any doctors to treat me, then fine. I would rather die than live in such a society. I was born free, I will die free. Or as Ronald Reagan once said:
I am no longer young. You might have suspected that. [Laughter] The house we hope to build is one that is not for my generation, but for yours. It is your future that matters. And I hope that when you’re my age, you’ll be able to say as I have been able to say: We lived in freedom, we lived lives that were a statement, not an apology.
I intend to live my life as a statement, not an apology.
A new study has found that both improvised and surgical masks are ineffective in stopping the spread of COVID-19.
They found that “neither surgical nor cotton masks effectively filtered SARS–CoV-2 during coughs by infected patients.” They also “found greater contamination on the outer than the inner mask surfaces,” suggesting that any contact with a mask worn for a long time will likely mean the mask increases the chance of spreading the virus.
Their conclusion?
[B]oth surgical and cotton masks seem to be ineffective in preventing the dissemination of SARS–CoV-2 from the coughs of patients with COVID-19 to the environment and external mask surface.
Granted the experiment only tested four individuals in a controlled situation, but what they found matches what many others have been saying. It also illustrates the uncertainty of the science. Considering that the World Health Organization (WHO) states now that healthy people should not wear masks, and that there are also health risks for those that do, it once again seems very inappropriate (I am using a very mild word here) for our leaders or anyone to now demand that we all wear them, all the time, in all situations, blindly.
If others wish to wear masks, all power to them. I however will not submit to something I consider irrational. And I suspect sadly that I am mostly alone in this, because I think that most who say they agree with me will still cooperate and put on a mask when told to do so. I will not. At the moment I am fighting with two doctors, who will not see me for regular doctors appointments unless I wear a mask. I have told them I will not, have cited the medical reasons why (I have asthma), and they so far have not bent.
If it means I no longer have any doctors to treat me, then fine. I would rather die than live in such a society. I was born free, I will die free. Or as Ronald Reagan once said:
I am no longer young. You might have suspected that. [Laughter] The house we hope to build is one that is not for my generation, but for yours. It is your future that matters. And I hope that when you’re my age, you’ll be able to say as I have been able to say: We lived in freedom, we lived lives that were a statement, not an apology.
I intend to live my life as a statement, not an apology.
The history of the U.S.’s giant off-road land trains
Link here. These massive and very impressive working trains designed as trucks that could travel across roadless terrain, in the Arctic, is quite fascinating. This paragraph about their designer and builder however illustrates the kind of nation that made the fast building of such things possible:
Born in 1888, Robert Gilmore LeTourneau was an inventor of heavy machinery. In WWII, 70 percent of the Allies’ earthmoving equipment was created by LeTourneau Technologies, Inc. Having very little formal education, LeTourneau began his working career as an ironmonger. By the time he died in 1969 he was tremendously wealthy and personally held nearly 300 patents. He is buried on the campus of the University he founded in his name, where his gravestone reads “MOVER OF MEN AND MOUNTAINS.” Just a little character development for you.
Our country can still such a place, where we are not afraid and allow anyone to do anything, if they have the courage and the brains and the commitment. It requires however that we be both free and brave. Wearing masks for symbolic reasons and out of fear is certainly not a path to such a nation.
Hat tip Tom Biggar.
Link here. These massive and very impressive working trains designed as trucks that could travel across roadless terrain, in the Arctic, is quite fascinating. This paragraph about their designer and builder however illustrates the kind of nation that made the fast building of such things possible:
Born in 1888, Robert Gilmore LeTourneau was an inventor of heavy machinery. In WWII, 70 percent of the Allies’ earthmoving equipment was created by LeTourneau Technologies, Inc. Having very little formal education, LeTourneau began his working career as an ironmonger. By the time he died in 1969 he was tremendously wealthy and personally held nearly 300 patents. He is buried on the campus of the University he founded in his name, where his gravestone reads “MOVER OF MEN AND MOUNTAINS.” Just a little character development for you.
Our country can still such a place, where we are not afraid and allow anyone to do anything, if they have the courage and the brains and the commitment. It requires however that we be both free and brave. Wearing masks for symbolic reasons and out of fear is certainly not a path to such a nation.
Hat tip Tom Biggar.
Chandra captures black hole outburst over eight months
Astronomers using the Chandra X-ray space telescope have documented the motion of two blobs moving away from a stellar-mass black hole over a period of eight months, producing a four-frame movie from their images and estimating the speed of those blobs to be 80% that of the speed of light.
The gif animation to the right shows that short movie.
The black hole and its companion star make up a system called MAXI J1820+070, located in our Galaxy about 10,000 light years from Earth. The black hole in MAXI J1820+070 has a mass about eight times that of the Sun, identifying it as a so-called stellar-mass black hole, formed by the destruction of a massive star. (This is in contrast to supermassive black holes that contain millions or billions of times the Sun’s mass.)
The companion star orbiting the black hole has about half the mass of the Sun. The black hole’s strong gravity pulls material away from the companion star into an X-ray emitting disk surrounding the black hole.
While some of the hot gas in the disk will cross the “event horizon” (the point of no return) and fall into the black hole, some of it is instead blasted away from the black hole in a pair of short beams of material, or jets. These jets are pointed in opposite directions, launched from outside the event horizon along magnetic field lines. The new footage of this black hole’s behavior is based on four observations obtained with Chandra in November 2018 and February, May, and June of 2019, and reported in a paper led by Mathilde Espinasse of the Université de Paris.
Hubble has produced similar movies of the activity around the Crab Nebula. Sadly, we don’t have enough space telescopes like these in orbit to monitor such objects more frequently and thus photograph their behavior more completely. If we did we’d be able to get a much better understanding of their ongoing activity. We would also be able to produce more movies such as this, with much higher resolution and more continuous coverage.
Astronomers using the Chandra X-ray space telescope have documented the motion of two blobs moving away from a stellar-mass black hole over a period of eight months, producing a four-frame movie from their images and estimating the speed of those blobs to be 80% that of the speed of light.
The gif animation to the right shows that short movie.
The black hole and its companion star make up a system called MAXI J1820+070, located in our Galaxy about 10,000 light years from Earth. The black hole in MAXI J1820+070 has a mass about eight times that of the Sun, identifying it as a so-called stellar-mass black hole, formed by the destruction of a massive star. (This is in contrast to supermassive black holes that contain millions or billions of times the Sun’s mass.)
The companion star orbiting the black hole has about half the mass of the Sun. The black hole’s strong gravity pulls material away from the companion star into an X-ray emitting disk surrounding the black hole.
While some of the hot gas in the disk will cross the “event horizon” (the point of no return) and fall into the black hole, some of it is instead blasted away from the black hole in a pair of short beams of material, or jets. These jets are pointed in opposite directions, launched from outside the event horizon along magnetic field lines. The new footage of this black hole’s behavior is based on four observations obtained with Chandra in November 2018 and February, May, and June of 2019, and reported in a paper led by Mathilde Espinasse of the Université de Paris.
Hubble has produced similar movies of the activity around the Crab Nebula. Sadly, we don’t have enough space telescopes like these in orbit to monitor such objects more frequently and thus photograph their behavior more completely. If we did we’d be able to get a much better understanding of their ongoing activity. We would also be able to produce more movies such as this, with much higher resolution and more continuous coverage.
That Jupiter Trojan comet-like asteroid was neither an asteroid nor a Trojan
Astronomers have now found that the asteroid that had suddenly become active, like a comet, and they had thought was part of the asteroids in Jupiter orbit called Trojans, was neither an asteroid nor a Trojan.
Instead, it is an actual comet captured in a strange unstable orbit around Jupiter.
[W]hen amateur astronomer Sam Deen used software on the Jet Propulsion Laboratory’s solar-system dynamics website to calculate the object’s orbit, he found P/2019 LD2 recently had a close encounter with Jupiter that left its orbit unstable. The model showed that the comet had likely been a Centaur, part of a family of outer solar system asteroids, with an orbit reaching out to Saturn. Then, on February 17, 2017, it passed about 14 million kilometers from Jupiter, an encounter that sent the comet on a wild ride and inserted it into an odd Jupiter-like orbit.
Yet although the swing past Jupiter put P/2019 LD2 into a Jupiter-like orbit, it didn’t move it near to one of the two Lagrange points where the combination of gravitational forces from Jupiter and the Sun hold Trojan asteroids. Instead of being 60° — one-sixth of the giant planet’s orbit — from Jupiter, P/2019 LD2 is only 21° ahead of Jupiter.
The orbit is unstable. It will bring the comet to within 3 million miles of Jupiter in 2063, but beyond that predictions are impossible. The exact closeness of that approach cannot be predicted with much precision, partly because of the chaotic nature of the orbit, and partly because of the random orbital changes that can occur because the comet is venting.
Astronomers have now found that the asteroid that had suddenly become active, like a comet, and they had thought was part of the asteroids in Jupiter orbit called Trojans, was neither an asteroid nor a Trojan.
Instead, it is an actual comet captured in a strange unstable orbit around Jupiter.
[W]hen amateur astronomer Sam Deen used software on the Jet Propulsion Laboratory’s solar-system dynamics website to calculate the object’s orbit, he found P/2019 LD2 recently had a close encounter with Jupiter that left its orbit unstable. The model showed that the comet had likely been a Centaur, part of a family of outer solar system asteroids, with an orbit reaching out to Saturn. Then, on February 17, 2017, it passed about 14 million kilometers from Jupiter, an encounter that sent the comet on a wild ride and inserted it into an odd Jupiter-like orbit.
Yet although the swing past Jupiter put P/2019 LD2 into a Jupiter-like orbit, it didn’t move it near to one of the two Lagrange points where the combination of gravitational forces from Jupiter and the Sun hold Trojan asteroids. Instead of being 60° — one-sixth of the giant planet’s orbit — from Jupiter, P/2019 LD2 is only 21° ahead of Jupiter.
The orbit is unstable. It will bring the comet to within 3 million miles of Jupiter in 2063, but beyond that predictions are impossible. The exact closeness of that approach cannot be predicted with much precision, partly because of the chaotic nature of the orbit, and partly because of the random orbital changes that can occur because the comet is venting.
China reveals its space station launch schedule
The new colonial movement: According to its chief designer, China will complete the assembly of its first multi-module space station over a two year period beginning in early 2021.
The first module for the Chinese space station will launch next year, said Zhou Jianping, chief designer of China’s human spaceflight program, on the sidelines of a political conference in Beijing Tuesday. Launch of the Tianhe core module on a Long March 5B could take place at Wenchang in early 2021. This will be followed by a crewed Shenzhou flight, from Jiuquan, and a Tianzhou cargo mission. The first of two experiment modules will then launch for docking with Tianhe.
In total 11 launches will be conducted to complete the construction of the space station by around 2023, Zhou said (Chinese). These will be the launch of the core and two experiment modules, as well as four crewed spacecraft and four cargo spacecraft. The intensive launch plan was revealed following the successful test flight of the Long March 5B heavy-lift rocket May 5. The missions will be conducted using Long March 5B, Long March 2F and Long March 7 launch vehicles.
They will first launch in 2020 their Mars Tianwen-1 orbiter/lander/rover and their Chang’e-5 lunar sample mission, both using the Long March 5B rocket.
Unless they experience a launch failure along the way, I expect this schedule to occur, as outlined.
Let’s fantasize: If SpaceX can get Starship/Super Heavy operational by 2023 (the company’s present somewhat unrealistic goal), they could send it up to swallow the station whole and bring it back to Earth, just like a James Bond movie.
The new colonial movement: According to its chief designer, China will complete the assembly of its first multi-module space station over a two year period beginning in early 2021.
The first module for the Chinese space station will launch next year, said Zhou Jianping, chief designer of China’s human spaceflight program, on the sidelines of a political conference in Beijing Tuesday. Launch of the Tianhe core module on a Long March 5B could take place at Wenchang in early 2021. This will be followed by a crewed Shenzhou flight, from Jiuquan, and a Tianzhou cargo mission. The first of two experiment modules will then launch for docking with Tianhe.
In total 11 launches will be conducted to complete the construction of the space station by around 2023, Zhou said (Chinese). These will be the launch of the core and two experiment modules, as well as four crewed spacecraft and four cargo spacecraft. The intensive launch plan was revealed following the successful test flight of the Long March 5B heavy-lift rocket May 5. The missions will be conducted using Long March 5B, Long March 2F and Long March 7 launch vehicles.
They will first launch in 2020 their Mars Tianwen-1 orbiter/lander/rover and their Chang’e-5 lunar sample mission, both using the Long March 5B rocket.
Unless they experience a launch failure along the way, I expect this schedule to occur, as outlined.
Let’s fantasize: If SpaceX can get Starship/Super Heavy operational by 2023 (the company’s present somewhat unrealistic goal), they could send it up to swallow the station whole and bring it back to Earth, just like a James Bond movie.
New Starship engine test; launch license issued
Capitalism in space: Yesterday SpaceX completed a new static fire engine test of its fourth Starship prototype while also obtaining a two-year launch license from the FAA for a future short up-and-down test hops
SpaceX briefly fired up the single Raptor engine of Starship SN4, the latest prototype of the company’s Mars-colonizing spaceship. The Raptor blazed for a few seconds while the SN4 remained tethered to the ground at SpaceX’s facilities near the South Texas village of Boca Chica. It was the fourth “static fire” test for the SN4, and the second with this particular Raptor engine. The previous static fire blazed a little hot, scorching the base of the spacecraft, but the flames seemed to behave themselves this time around.
Musk has said he wants to take the SN4 out for a spin soon, on an uncrewed test flight to a target altitude of about 500 feet (150 meters). With four static fires now in the books, SN4 seems poised to take that leap. But the prototype won’t get off the ground before Demo-2 does. “I have redirected SpaceX’s priorities to be very focused on the crew launch,” Musk told Aviation Week & Space Technology’s Irene Klotz recently. “As a rough guess, I think we’re a few weeks away from a hop.”
SpaceX has its paperwork in order to take Starship prototypes pretty high up, by the way. Today [now yesterday], the Federal Aviation Administration’s Office of Commercial Space Transportation issued the company a two-year license to launch suborbital flights from the Boca Chica site.
Note that whatever caused the fire that occurred in the previous static fire test has apparently been identified and quickly resolved.
Capitalism in space: Yesterday SpaceX completed a new static fire engine test of its fourth Starship prototype while also obtaining a two-year launch license from the FAA for a future short up-and-down test hops
SpaceX briefly fired up the single Raptor engine of Starship SN4, the latest prototype of the company’s Mars-colonizing spaceship. The Raptor blazed for a few seconds while the SN4 remained tethered to the ground at SpaceX’s facilities near the South Texas village of Boca Chica. It was the fourth “static fire” test for the SN4, and the second with this particular Raptor engine. The previous static fire blazed a little hot, scorching the base of the spacecraft, but the flames seemed to behave themselves this time around.
Musk has said he wants to take the SN4 out for a spin soon, on an uncrewed test flight to a target altitude of about 500 feet (150 meters). With four static fires now in the books, SN4 seems poised to take that leap. But the prototype won’t get off the ground before Demo-2 does. “I have redirected SpaceX’s priorities to be very focused on the crew launch,” Musk told Aviation Week & Space Technology’s Irene Klotz recently. “As a rough guess, I think we’re a few weeks away from a hop.”
SpaceX has its paperwork in order to take Starship prototypes pretty high up, by the way. Today [now yesterday], the Federal Aviation Administration’s Office of Commercial Space Transportation issued the company a two-year license to launch suborbital flights from the Boca Chica site.
Note that whatever caused the fire that occurred in the previous static fire test has apparently been identified and quickly resolved.
Rocket Lab to resume launches in June
Capitalism in space: With the New Zealand government finally lifting some of the Wuhan panic restrictions it imposed on its population, Rocket Lab has announced that it will resume launches in June.
The company announced May 28 it has rescheduled an Electron launch for June 11 local time from its launch site on New Zealand’s Mahia Peninsula. That launch was previously scheduled for March 30 but postponed because of a lockdown imposed by the New Zealand government in response to the pandemic.
The launch, called “Don’t Stop Me Now” by the company, has the same set of payloads as what the company originally announced in March. That includes three unidentified payloads for the National Reconnaissance Office, the ANDESITE (Ad-hoc Network Demonstration for Extended Satellite-based Inquiry and other Team Endeavors) cubesat built by students at Boston University and whose launch was arranged by NASA, and M2 Pathfinder built by the University of New South Wales Canberra.
I suspect that, because the launch business is normally filled with delays that can extend to two months, Rocket Lab has weathered this situation better than many others.
Capitalism in space: With the New Zealand government finally lifting some of the Wuhan panic restrictions it imposed on its population, Rocket Lab has announced that it will resume launches in June.
The company announced May 28 it has rescheduled an Electron launch for June 11 local time from its launch site on New Zealand’s Mahia Peninsula. That launch was previously scheduled for March 30 but postponed because of a lockdown imposed by the New Zealand government in response to the pandemic.
The launch, called “Don’t Stop Me Now” by the company, has the same set of payloads as what the company originally announced in March. That includes three unidentified payloads for the National Reconnaissance Office, the ANDESITE (Ad-hoc Network Demonstration for Extended Satellite-based Inquiry and other Team Endeavors) cubesat built by students at Boston University and whose launch was arranged by NASA, and M2 Pathfinder built by the University of New South Wales Canberra.
I suspect that, because the launch business is normally filled with delays that can extend to two months, Rocket Lab has weathered this situation better than many others.
Weather for Saturday’s SpaceX launch is presently poor
The weather for Saturday’s SpaceX launch presently gives only a 40% chance of launch.
Forecasters from the 45th Weather Squadron have issued a slightly more pessimistic outlook for the next two Crew Dragon launch opportunities Saturday and Sunday.
There’s now a 60 percent probability of weather conditions at the launch site violating one of the criteria for liftoff for launch opportunities at 3:22 p.m. EDT (1922 GMT) Saturday and at 3:00 p.m. EDT (1900 GMT) Sunday, according to the weather team.
The worst part is that the weather doesn’t look good for either day.
The weather for Saturday’s SpaceX launch presently gives only a 40% chance of launch.
Forecasters from the 45th Weather Squadron have issued a slightly more pessimistic outlook for the next two Crew Dragon launch opportunities Saturday and Sunday.
There’s now a 60 percent probability of weather conditions at the launch site violating one of the criteria for liftoff for launch opportunities at 3:22 p.m. EDT (1922 GMT) Saturday and at 3:00 p.m. EDT (1900 GMT) Sunday, according to the weather team.
The worst part is that the weather doesn’t look good for either day.
Making wood function like home heating oil
Doctors admit: Masks are nothing more than “symbols”, do little
Researchers admit masks are nothing more than “symbols”, and may in the end increase the risk of catching the coronavirus, or other diseases.
From the original New England Journal of Medicine paper:
A mask will not protect providers caring for a patient with active Covid-19 if it’s not accompanied by meticulous hand hygiene, eye protection, gloves, and a gown. A mask alone will not prevent health care workers with early Covid-19 from contaminating their hands and spreading the virus to patients and colleagues. Focusing on universal masking alone may, paradoxically, lead to more transmission of Covid-19 if it diverts attention from implementing more fundamental infection-control measures. [emphasis mine]
The paper than bluntly concludes that masks are really no more than a “talisman” and a symbol for influencing others to do what the mask-wearer wants.
Masks are visible reminders of an otherwise invisible yet widely prevalent pathogen and may remind people of the importance of social distancing and other infection-control measures.
It is also clear that masks serve symbolic roles. Masks are not only tools, they are also talismans that may help increase health care workers’ perceived sense of safety, well-being, and trust in their hospitals. Although such reactions may not be strictly logical, we are all subject to fear and anxiety, especially during times of crisis. One might argue that fear and anxiety are better countered with data and education than with a marginally beneficial mask, particularly in light of the worldwide mask shortage, but it is difficult to get clinicians to hear this message in the heat of the current crisis. Expanded masking protocols’ greatest contribution may be to reduce the transmission of anxiety, over and above whatever role they may play in reducing transmission of Covid-19.
I am sick and tired of being forced to do empty, feel-good gestures that actually increase my risk, and do nothing except advance the political agendas of fools who are guided only by emotion and irrationality.
I will not wear a mask under these conditions, and I will tell anyone that tries to force to do it to go jump in a lake.
Researchers admit masks are nothing more than “symbols”, and may in the end increase the risk of catching the coronavirus, or other diseases.
From the original New England Journal of Medicine paper:
A mask will not protect providers caring for a patient with active Covid-19 if it’s not accompanied by meticulous hand hygiene, eye protection, gloves, and a gown. A mask alone will not prevent health care workers with early Covid-19 from contaminating their hands and spreading the virus to patients and colleagues. Focusing on universal masking alone may, paradoxically, lead to more transmission of Covid-19 if it diverts attention from implementing more fundamental infection-control measures. [emphasis mine]
The paper than bluntly concludes that masks are really no more than a “talisman” and a symbol for influencing others to do what the mask-wearer wants.
Masks are visible reminders of an otherwise invisible yet widely prevalent pathogen and may remind people of the importance of social distancing and other infection-control measures.
It is also clear that masks serve symbolic roles. Masks are not only tools, they are also talismans that may help increase health care workers’ perceived sense of safety, well-being, and trust in their hospitals. Although such reactions may not be strictly logical, we are all subject to fear and anxiety, especially during times of crisis. One might argue that fear and anxiety are better countered with data and education than with a marginally beneficial mask, particularly in light of the worldwide mask shortage, but it is difficult to get clinicians to hear this message in the heat of the current crisis. Expanded masking protocols’ greatest contribution may be to reduce the transmission of anxiety, over and above whatever role they may play in reducing transmission of Covid-19.
I am sick and tired of being forced to do empty, feel-good gestures that actually increase my risk, and do nothing except advance the political agendas of fools who are guided only by emotion and irrationality.
I will not wear a mask under these conditions, and I will tell anyone that tries to force to do it to go jump in a lake.
Poll: Hawaiians favor construction of TMT by wide margins
A new poll suggests that Hawaii’s general population supports the construction of the Thirty Meter Telescope (TMT) by a 2 to 1 margins, 61% in favor, 32% opposed.
The poll also found wide opposition to the goals and tactics of the protesters, as well as the failure of the state government under Democratic Governor David Ige to stop those protesters from illegally blocking construction.
- 92 percent of Hawaii residents agree there should be a way for science and Hawaiian culture both to exist on Maunakea
- 80 percent of Hawaii residents agree that peaceful protests are fine but have no tolerance for protests that result in laws being broken
- 79 percent of Hawaii residents agree that the government is responsible for providing safe construction access to the TMT site
None of this really matters. Ige and the Democrats who run Hawaii support the bigoted beliefs of the protesters, who want all non-native residents and their projects removed from Hawaii, while imposing a rule controlled solely by these so-called native Hawaiians.
A new poll suggests that Hawaii’s general population supports the construction of the Thirty Meter Telescope (TMT) by a 2 to 1 margins, 61% in favor, 32% opposed.
The poll also found wide opposition to the goals and tactics of the protesters, as well as the failure of the state government under Democratic Governor David Ige to stop those protesters from illegally blocking construction.
- 92 percent of Hawaii residents agree there should be a way for science and Hawaiian culture both to exist on Maunakea
- 80 percent of Hawaii residents agree that peaceful protests are fine but have no tolerance for protests that result in laws being broken
- 79 percent of Hawaii residents agree that the government is responsible for providing safe construction access to the TMT site
None of this really matters. Ige and the Democrats who run Hawaii support the bigoted beliefs of the protesters, who want all non-native residents and their projects removed from Hawaii, while imposing a rule controlled solely by these so-called native Hawaiians.
Rover update: The state of Curiosity’s wheels
[For the overall context of Curiosity’s travels, see my March 2016 post, Pinpointing Curiosity’s location in Gale Crater. For the updates in 2018 go here. For a full list of updates before February 8, 2018, go here.]
In my last rover update (April 16, 2020), I posted some new images taken of Curiosity’s wheels, showing the damage that they have experienced during the rover’s journey so far in Gale Crater.
At the time, I was unable to match any of the released images, taken on Sol 2732 (April 13, 2020), with the previous wheel image I have used to quickly gauge any new damage (see my July 9, 2019 report).
As it turns out, one of those images did match the earlier image. I simply failed to realize it. Today’s daily download of raw images from Curiosity included additional photos of the rover’s wheels, apparently also taken on Sol 2732 but not available until now. One of those images matches the earlier wheel image, and this time I spotted the match. A comparison is posted below, with my analysis.
» Read more
A Martian crater with a straight edge
Click for full image.
Cool image time! The image to the right, cropped and reduced to post here, was released today by the science team of the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a small Martian crater whose northern rim for some reason is flattened into a straight line. Such a crater is rare, since almost all craters rims are round, even in the case of a low angle impact. The cause is unknown, though there are theories. From the caption, written by Ingrid Daubar of the Lunar and Planetary Laboratory in Arizona:
One possibility is that there was a zone of joints or faults in the crust that existed before the impact. When the impact happened, the crater formed along the straight line of these faults. Something similar happened to Meteor Crater in Arizona. Our image doesn’t show any faults, but they could be beneath the surface.
Perhaps some sort of uneven collapse changed the shape of the crater. There are piles of material on the crater’s floor, especially in the northwest and northeast corners. If those piles fell down from the rim, why did it happen there and not in other places? This crater is near the size where larger craters start to show wall slumping and terraces, so this type of collapse could be occurring unevenly.
The crater is located in the southern cratered highlands of Mars, at about 32 degrees latitude. At that latitude, it is also possible that some past glacial activity could have misshapen this crater, though I have no idea how. The crater itself does not appear to have any glacial material in it.
Click for full image.
Cool image time! The image to the right, cropped and reduced to post here, was released today by the science team of the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a small Martian crater whose northern rim for some reason is flattened into a straight line. Such a crater is rare, since almost all craters rims are round, even in the case of a low angle impact. The cause is unknown, though there are theories. From the caption, written by Ingrid Daubar of the Lunar and Planetary Laboratory in Arizona:
One possibility is that there was a zone of joints or faults in the crust that existed before the impact. When the impact happened, the crater formed along the straight line of these faults. Something similar happened to Meteor Crater in Arizona. Our image doesn’t show any faults, but they could be beneath the surface.
Perhaps some sort of uneven collapse changed the shape of the crater. There are piles of material on the crater’s floor, especially in the northwest and northeast corners. If those piles fell down from the rim, why did it happen there and not in other places? This crater is near the size where larger craters start to show wall slumping and terraces, so this type of collapse could be occurring unevenly.
The crater is located in the southern cratered highlands of Mars, at about 32 degrees latitude. At that latitude, it is also possible that some past glacial activity could have misshapen this crater, though I have no idea how. The crater itself does not appear to have any glacial material in it.
New observations confirm Earth-like planet orbiting nearest star
Worlds without end: New observations have confirmed the existence of an Earth-sized planet orbiting the nearest star to our Sun, Proxima Centauri, only 4.2 light years away..
The planet, Proxima b, is estimated to have a mass 1.17 of Earth’s, and orbit the star every 11.2 days. Based on that orbit, the planet is also in the star’s habitable zone. Whether there is life there however remains unknown.
Although Proxima b is about 20 times closer to its star than the Earth is to the Sun, it receives comparable energy, so that its surface temperature could mean that water (if there is any) is in liquid form in places and might, therefore, harbour life.
Having said that, although Proxima b is an ideal candidate for biomarker research, there is still a long way to go before we can suggest that life has been able to develop on its surface. In fact, the Proxima star is an active red dwarf that bombards its planet with X rays, receiving about 400 times more than the Earth. “Is there an atmosphere that protects the planet from these deadly rays?” asks Christophe Lovis, a researcher in UNIGE’s Astronomy Department and responsible for ESPRESSO’s scientific performance and data processing. “And if this atmosphere exists, does it contain the chemical elements that promote the development of life (oxygen, for example)? How long have these favourable conditions existed? We’re going to tackle all these questions.
The research data also suggests there might be another planet in orbit around Proxima Centauri, though this conclusion is very preliminary.
Worlds without end: New observations have confirmed the existence of an Earth-sized planet orbiting the nearest star to our Sun, Proxima Centauri, only 4.2 light years away..
The planet, Proxima b, is estimated to have a mass 1.17 of Earth’s, and orbit the star every 11.2 days. Based on that orbit, the planet is also in the star’s habitable zone. Whether there is life there however remains unknown.
Although Proxima b is about 20 times closer to its star than the Earth is to the Sun, it receives comparable energy, so that its surface temperature could mean that water (if there is any) is in liquid form in places and might, therefore, harbour life.
Having said that, although Proxima b is an ideal candidate for biomarker research, there is still a long way to go before we can suggest that life has been able to develop on its surface. In fact, the Proxima star is an active red dwarf that bombards its planet with X rays, receiving about 400 times more than the Earth. “Is there an atmosphere that protects the planet from these deadly rays?” asks Christophe Lovis, a researcher in UNIGE’s Astronomy Department and responsible for ESPRESSO’s scientific performance and data processing. “And if this atmosphere exists, does it contain the chemical elements that promote the development of life (oxygen, for example)? How long have these favourable conditions existed? We’re going to tackle all these questions.
The research data also suggests there might be another planet in orbit around Proxima Centauri, though this conclusion is very preliminary.
OSIRIS-REx completes close fly-over of backup sample grab site
The OSIRIS-REx science team has completed its closest fly-over of its backup sample grab location on the asteroid Bennu, getting to within about 820 feet.
The goal was to get better imagery and science data of the site, both for research and also should the planned October 20th sample-grab-and-go touchdown at the primary site, Nightingale, should fail.
The OSIRIS-REx science team has completed its closest fly-over of its backup sample grab location on the asteroid Bennu, getting to within about 820 feet.
The goal was to get better imagery and science data of the site, both for research and also should the planned October 20th sample-grab-and-go touchdown at the primary site, Nightingale, should fail.
SpaceX raises $346 million more in investment capital
Capitalism in space: According to Elon Musk, SpaceX has raised an additional $346 million more in investment capital.
According to the very short article at the link, this brings the total raised during this latest fund-raising round to $567 million. This is puzzling, as in March SpaceX announced that it had raised $500 million in this round. If the company has raised an additional $346, the total should be higher.
Either way, this brings the total raised by the company to close to $2 billion, almost all of which is being dedicated to building Starship & Super Heavy. Compared to what NASA spends on SLS/Orion — about $3 billion per year with a total about $50 billion when its first manned mission occurs finally in 2024 — this is chicken feed. However, for a private company fueled by competition and good management (unlike NASA), it is likely more than enough to get the job done.
Capitalism in space: According to Elon Musk, SpaceX has raised an additional $346 million more in investment capital.
According to the very short article at the link, this brings the total raised during this latest fund-raising round to $567 million. This is puzzling, as in March SpaceX announced that it had raised $500 million in this round. If the company has raised an additional $346, the total should be higher.
Either way, this brings the total raised by the company to close to $2 billion, almost all of which is being dedicated to building Starship & Super Heavy. Compared to what NASA spends on SLS/Orion — about $3 billion per year with a total about $50 billion when its first manned mission occurs finally in 2024 — this is chicken feed. However, for a private company fueled by competition and good management (unlike NASA), it is likely more than enough to get the job done.
May 26, 2020 Zimmerman/Batchelor podcast
Embedded below the fold in two parts.
» Read more
Embedded below the fold in two parts.
» Read more
Melanie – Look What They’ve Done To My Song, Ma
An evening pause: Performed live, 1971. Nice song and performance, but I often wonder why the 60s generation so often seems so unhappy. We were the most blessed generation ever born on Earth, with more wealth and prosperity ever seen by anyone ever.
Hat tip Tom Biggar.
Weird central peak in Martian crater
Click for full image.
Cool image time! The photo to the right, cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter on March 18, 2020. It shows a very strange central peak in a crater on Mars. Not only does this peak stick out like a sore thumb in a relatively flat crater floor, its surface is strangely textured, patterned with what look like scallops.
The overview map below shows the area covered in the crater by the full image.
My guess is that the peak is the final impact melt from the original impact. Think of a pebble thrown into a pond. You get ripples (the crater rim) as well as an upward drop of water (the central peak). Unlike pond water, the material in a crater freezes quickly, leaving both the ripple and the upward drop frozen in place.
This peak however also reminds me of volcanic cones found in the American southwest, the remnant cone of a much larger volcano that has long ago eroded away.
The textures might be evidence of that erosion process, as they resemble scallops that wind and water erosion can cause on rock faces.
We also could be seeing dunes on the slopes themselves, though I think this is unlikely. This crater is on the edge of the vast Medusae Fossae Formation, the largest volcanic ash deposit field on Mars, as shown by the white cross on the overview map below. Thus, being on the edge of this ash field there is a lot of available dust and sand that can pile up on these slopes.
Still, the sunlight side of the ridge suggests the scallops are in bedrock, not sand dunes. And to assign their origin to either wind or water or ice erosion I think is a stretch.
So while the peak is probably the frozen melt remains of the original impact, the scallops are a geological mystery that needs unraveling.
Click for full image.
Cool image time! The photo to the right, cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter on March 18, 2020. It shows a very strange central peak in a crater on Mars. Not only does this peak stick out like a sore thumb in a relatively flat crater floor, its surface is strangely textured, patterned with what look like scallops.
The overview map below shows the area covered in the crater by the full image.
My guess is that the peak is the final impact melt from the original impact. Think of a pebble thrown into a pond. You get ripples (the crater rim) as well as an upward drop of water (the central peak). Unlike pond water, the material in a crater freezes quickly, leaving both the ripple and the upward drop frozen in place.
This peak however also reminds me of volcanic cones found in the American southwest, the remnant cone of a much larger volcano that has long ago eroded away.
The textures might be evidence of that erosion process, as they resemble scallops that wind and water erosion can cause on rock faces.
We also could be seeing dunes on the slopes themselves, though I think this is unlikely. This crater is on the edge of the vast Medusae Fossae Formation, the largest volcanic ash deposit field on Mars, as shown by the white cross on the overview map below. Thus, being on the edge of this ash field there is a lot of available dust and sand that can pile up on these slopes.
Still, the sunlight side of the ridge suggests the scallops are in bedrock, not sand dunes. And to assign their origin to either wind or water or ice erosion I think is a stretch.
So while the peak is probably the frozen melt remains of the original impact, the scallops are a geological mystery that needs unraveling.
SpaceX’s first manned Dragon launch scrubbed due to weather
UPDATE: They were forced to scrub at T-16:54 because of weather. They will try again in three days on May 30th, at 3:22 pm (Eastern). I will post the live stream here on Behind the Black late Friday night.
Original post:
—————————-
I have embedded below SpaceX’s live stream of the first manned Dragon mission, set to launch at 4:33 pm (Eastern). The stream begins at about 12:15 pm (Eastern). Feel free to watch as the day unfolds. Sadly, it is being managed by NASA, not SpaceX, and thus is filled with a lot of the agency’s fake hype.
I have also set it to remain at the top of the page until after the launch, or if it is scrubbed.
On a side note, NASA is now aiming for an August 30 launch of SpaceX’s next manned Dragon mission, the first official operational flight.
Below the fold I am also posting images captured, with some commentary.
UPDATE: They were forced to scrub at T-16:54 because of weather. They will try again in three days on May 30th, at 3:22 pm (Eastern). I will post the live stream here on Behind the Black late Friday night.
Original post:
—————————-
I have embedded below SpaceX’s live stream of the first manned Dragon mission, set to launch at 4:33 pm (Eastern). The stream begins at about 12:15 pm (Eastern). Feel free to watch as the day unfolds. Sadly, it is being managed by NASA, not SpaceX, and thus is filled with a lot of the agency’s fake hype.
I have also set it to remain at the top of the page until after the launch, or if it is scrubbed.
On a side note, NASA is now aiming for an August 30 launch of SpaceX’s next manned Dragon mission, the first official operational flight.
Below the fold I am also posting images captured, with some commentary.
Justice Dept recommends Trump veto of FISA bill
The Justice Department yesterday recommended that President Trump veto of the new reauthorization bill of the FISA court presently working its way through Congress.
Sadly, Justice’s reasons for this recommendations is that they reject House amendments to the bill by Democrats that would weaken its ability to spy on Americans.
The bill reauthorizes three surveillance programs and makes some changes to the court established by the Foreign Intelligence Surveillance Act (FISA). But the Senate, when it took up the bill earlier this month, added language to create new legal protections for some FISA warrant applications, a change that garnered pushback from the Justice Department.
[Assistant Attorney General Stephen] Boyd said on Wednesday that the Justice Department had offered “specific fixes to the most significant problems” stemming from the changes made by the Senate but signaled that they had been ignored by House lawmakers.
Instead, the House will vote on an additional amendment to the legislation as part of its debate on Wednesday that would tighten the limits on the FBI’s ability to access Americans’ web browsing history.
Boyd warned that the Justice Department believes the proposed change from the House would “weaken national security tools while doing nothing to address the abuses identified by the DOJ Inspector General.”
The good news here is that this recommendation, as odious as its goals are, will give Trump ammunition for vetoing the bill, which in the end will end this corrupt court. And that goal should be the goal of every freedom-loving American.
The Justice Department yesterday recommended that President Trump veto of the new reauthorization bill of the FISA court presently working its way through Congress.
Sadly, Justice’s reasons for this recommendations is that they reject House amendments to the bill by Democrats that would weaken its ability to spy on Americans.
The bill reauthorizes three surveillance programs and makes some changes to the court established by the Foreign Intelligence Surveillance Act (FISA). But the Senate, when it took up the bill earlier this month, added language to create new legal protections for some FISA warrant applications, a change that garnered pushback from the Justice Department.
[Assistant Attorney General Stephen] Boyd said on Wednesday that the Justice Department had offered “specific fixes to the most significant problems” stemming from the changes made by the Senate but signaled that they had been ignored by House lawmakers.
Instead, the House will vote on an additional amendment to the legislation as part of its debate on Wednesday that would tighten the limits on the FBI’s ability to access Americans’ web browsing history.
Boyd warned that the Justice Department believes the proposed change from the House would “weaken national security tools while doing nothing to address the abuses identified by the DOJ Inspector General.”
The good news here is that this recommendation, as odious as its goals are, will give Trump ammunition for vetoing the bill, which in the end will end this corrupt court. And that goal should be the goal of every freedom-loving American.
SpaceX’s first Starship tourist customer accused of tax evasion
Capitalism in space: Yusaku Maezawa, the first person to buy a ticket to fly on SpaceX’s Starship around the Moon, has now been accused in the Japanese press to have evaded $4.6 million in taxes.
The reports, which first appeared in the Yomiuri newspaper, suggested that Mr Maezawa had failed to fully declare the personal use of a corporate jet owned by his asset management firm over a three-year period.
Japan’s national tax agency declined to comment.
Maezawa has vigorously denied the allegations on Twitter.
Capitalism in space: Yusaku Maezawa, the first person to buy a ticket to fly on SpaceX’s Starship around the Moon, has now been accused in the Japanese press to have evaded $4.6 million in taxes.
The reports, which first appeared in the Yomiuri newspaper, suggested that Mr Maezawa had failed to fully declare the personal use of a corporate jet owned by his asset management firm over a three-year period.
Japan’s national tax agency declined to comment.
Maezawa has vigorously denied the allegations on Twitter.
Virgin Orbit provides update on LauncherOne failure
Capitalism in space: Virgin Orbit has posted a detailed update on the failure of its LauncherOne rocket on its first launch on May 25.
About 9 seconds after drop, something malfunctioned, causing the booster stage engine to extinguish, which in turn ended the mission. We cannot yet say conclusively what the malfunction was or what caused it, but we feel confident we have sufficient data to determine that as we continue through the rigorous investigation we’ve already begun. With the engine extinguished, the vehicle was no longer able to maintain controlled flight — but the rocket did not explode. It stayed within the predicted downrange corridors of our projections and our Federal Aviation Administration (FAA) launch license as the vehicle fell to the ocean, posing no risk to public safety, no danger our aircrew or aircraft, and no significant environmental impact.
They note that the rocket’s release and engine ignition went as planned, which is for them positive news. They say they their next rocket is being prepared for launch, but do not say when.
I have embedded their video report of the flight below the fold. It does include video of the rocket’s release, ignition, and shut down, but cuts off at that point.
» Read more
Capitalism in space: Virgin Orbit has posted a detailed update on the failure of its LauncherOne rocket on its first launch on May 25.
About 9 seconds after drop, something malfunctioned, causing the booster stage engine to extinguish, which in turn ended the mission. We cannot yet say conclusively what the malfunction was or what caused it, but we feel confident we have sufficient data to determine that as we continue through the rigorous investigation we’ve already begun. With the engine extinguished, the vehicle was no longer able to maintain controlled flight — but the rocket did not explode. It stayed within the predicted downrange corridors of our projections and our Federal Aviation Administration (FAA) launch license as the vehicle fell to the ocean, posing no risk to public safety, no danger our aircrew or aircraft, and no significant environmental impact.
They note that the rocket’s release and engine ignition went as planned, which is for them positive news. They say they their next rocket is being prepared for launch, but do not say when.
I have embedded their video report of the flight below the fold. It does include video of the rocket’s release, ignition, and shut down, but cuts off at that point.
» Read more
OneWeb requests FCC approval for 48,000 satellite constellation
Capitalism in space: Despite declaring bankruptcy in March, the satellite communications company OneWeb has applied for an FCC license to launch as many as 48,000 satellites in its planned constellation to provide global internet access.
This suggests the company fully expects to continue operations after exiting bankruptcy procedures.
Capitalism in space: Despite declaring bankruptcy in March, the satellite communications company OneWeb has applied for an FCC license to launch as many as 48,000 satellites in its planned constellation to provide global internet access.
This suggests the company fully expects to continue operations after exiting bankruptcy procedures.
Peter Bence – Africa Piano Symphony
The health dangers of wearing a mask improperly
Our new dictators in government and its bureaucracies are now attempting to impose a new “normal” on society, demanding that everyone where a mask wherever they go in public. They claim this is to “slow the spread of COVID-19”, but if you try to pin down the actual science that supports this claim, you will routinely have trouble finding it.
What you instead will find is that there is substantial peer-reviewed research that not only questions the usefulness of widespread mask use by the public in ordinary settings, but also notes serious health risks that can be caused by the masks themselves.
Today I want to take a look at the failure and absurdity of widespread mask use, using as my guide the very instructions given by the Mayo Clinic and the World Health Organization (WHO). What I am going to do is review these instructions, step-by-step, noting the absurdity of their expectations and the risks they scoff over so nonchalantly.
First, let’s look at the claims made by the Mayo clinic:
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Amazing layers
Click for full image.
Cool image time! The science team for the high resolution camera on Mars Reconnaissance Orbiter (MRO) today released a cool captioned image entitled “Exquisite Layering”, showing a place on the floor of Holden Crater where the dust and sand that normally covers most of the Martian surface has been wiped away, cleared off because these layers are on higher sloping terrain.
The image to the right, cropped to post here, focuses in on that exposed layering, believed to be sedimentary and must have therefore happened in the eons following the impact that caused the crater.
The overview map to the right shows with the red box the location of this layering inside Holden Crater. The map also illustrates why this crater was considered a candidate landing site for Curiosity. Like Gale Crater, it has evidence — the large meandering canyon system flowing into the crater — that suggests it had once been filled with a water lake. These sedimentary layers support that hypothesis, suggesting that this lake was intermittent. Each time it refilled and then dried up, it laid down a new deposit of those sedimentary layers.
Click for full image.
Cool image time! The science team for the high resolution camera on Mars Reconnaissance Orbiter (MRO) today released a cool captioned image entitled “Exquisite Layering”, showing a place on the floor of Holden Crater where the dust and sand that normally covers most of the Martian surface has been wiped away, cleared off because these layers are on higher sloping terrain.
The image to the right, cropped to post here, focuses in on that exposed layering, believed to be sedimentary and must have therefore happened in the eons following the impact that caused the crater.
The overview map to the right shows with the red box the location of this layering inside Holden Crater. The map also illustrates why this crater was considered a candidate landing site for Curiosity. Like Gale Crater, it has evidence — the large meandering canyon system flowing into the crater — that suggests it had once been filled with a water lake. These sedimentary layers support that hypothesis, suggesting that this lake was intermittent. Each time it refilled and then dried up, it laid down a new deposit of those sedimentary layers.