Real Engineering – The Secret Invention That Changed World War 2
An evening pause: How old fashioned Yankee ingenuity helped win the war, in a way you would not expect.
Hat tip Tom Biggar.
Year: 2023
August 11, 2023 Quick space links
Courtesy of BtB’s stringer Jay.
- Exolaunch gets new deal from smallsat company Muon to broker its launches
Exolaunch finds and manages launch services for satellite companies. With this deal Muon agrees to let it manage launches for at least another three satellites.
- Russia says by ’30 it will launch a nuclear-powered orbital tug to clean up space junk
This is simply another paper proposal by Roscosmos. The odds of it actually getting built are from slim to none.
- Firefly will donate any excess capacity on its rocket launches to student cubesat projects
The company is now accepting student or university proposals, contingent of course on when its Alpha rocket finally becomes operational. It has attempted two launches, the first a failure and the second reaching orbit but underperforming. Its next orbital launch attempt is presently scheduled for later this month.
- JPL touts its Mars sample return lander
As Jay notes, “The damn thing is not even assembled and it is still over budget.”
- New Horizons will look back at Uranus and Neptune in September, in conjunction with simultaneous Hubble observations
The science team is asking amateur astronomers to help by making their own observations of these two planets, at the same time.
The flat and mostly featureless flood lava plains of Mars
Click for original image.
Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on July 3, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Dubbed a “terrain sample” by the camera team, it was likely taken not as part of any scientist’s specific research program but to fill a gap in the camera’s schedule in order to maintain its proper temperature. When the camera team needs to do this they try to pick something of interest that is below during that gap.
In this case MRO was over the vast flood lava plains of Mars where for many hundreds of miles the only features are small variations produced from different overlapping lava flood events. The layers of lava in this region in fact appear so thick that there are relatively few places where the older topography still sticks up through the lava. In the case of this picture, the ridges might indicate such buried topography, but they also might simply be dikes of lava, pushed up through fissures from underground.
» Read more
On the radio on Sunday night
Just a heads up before the weekend starts: I will be appearing for forty minutes with Steve Thompson on WCCO-AM radio in Minnesota this Sunday, beginning at 9:10 pm (Central). We will be talking space, as well as how its future is predicted by my book Conscious Choice.
Today’s Blacklisted American: Best Buy joins the bigotry crowd
They’re coming for you next: An anonymous employee at Best Buy has released through James O’Keefe’s new journalism outlet photographs of Best Buy’s new segregated and discriminatory management training program, specifically designed for minorities only, whites need not apply.
The picture below is from one of those photographs, cropped to show the instructions for applying to the program. The sections highlighted in red illustrate the program’s illegal and discriminatory nature.
Click for original image.
If you have any doubt that Best Buy and its partner McKinsey & Company are doing this, you need only read Best Buy’s own press release announcing the program.
» Read more
Scientists: Saturn has rainstorms of ammonia lasting hundreds of years
Using radio telescope data of Saturn scientists now believe that the big storm first detected in 2011 produced rainstorms of ammonia which are expected to last hundreds of years.
As reported in the new study, de Pater, Li and UC Berkeley graduate student Chris Moeckel found something surprising in the radio emissions from the planet: anomalies in the concentration of ammonia gas in the atmosphere, which they connected to the past occurrences of megastorms in the planet’s northern hemisphere.
According to the team, the concentration of ammonia is lower at midaltitudes, just below the uppermost ammonia-ice cloud layer, but has become enriched at lower altitudes, 100 to 200 kilometers deeper in the atmosphere. They believe that the ammonia is being transported from the upper to the lower atmosphere via the processes of precipitation and reevaporation. What’s more, that effect can last for hundreds of years. [emphasis mine]
In other words, Saturn has an ammonia cycle similar to the water cycle on Earth.
Need I add that this study carries great uncertainties, and that the amount of data about Saturn’s interior and atmosphere is sparse, at best?
Perseverance videotapes Ingenuity’s 54th flight, a short hop up and down
As I predicted last week, the Perseverance science team have successfully filmed the 54th flight of Ingenuity on August 3, 2023, using the high resolution cameras on masts on top of the Mars rover.
I have embedded that movie below. The image to the right is a screen capture from that movie, when the helicopter was hovering at sixteen feet elevation. Since Perseverance was about 200 feet away to the northeast, the horizon line in the background is the southwest rim of Jezero crater, about ten miles away, with the intervening hills about five miles closer.
The flight was a simple hop, up and down, to verify Ingenuity’s systems after its previous flight had ended prematurely.
The helicopter’s 55th flight was scheduled to occur yesterday, traveling 820 feet for 134 seconds, but so far there is no word on whether it happened as planned.
» Read more
India approves new spaceport for private launches of SSLV rocket
India’s two spaceports
The Modi government in India has now approved the use of its new spaceport in Kulasekarapattinam by private operators, including the private operator who wins control of the SSLV rocket that was developed by ISRO, India’s space agency.
On the new launch pad that ISRO is building at Kulasekarapattinam in Thoothukudi district along the coast in Tamil Nadu, SIRO Chairman S Somanath said that nearly 99 per cent of the 2,000 acres has been transferred to ISRO by the Tamil Nadu government. “It takes at least two years to become fully functional after the commencement of the construction work. However, we will be able to conduct some sub-orbital launches there,” he added.
In December about 80% of that land had been purchased, so the government is now close to owning everything it needs.
Though the government is accepting bids from private companies to operate SSLV, it is not clear if that will be an exclusive right, or whether ISRO will continue to do its own launches. Either way, this new spaceport is being designed to enable private operators to launch from it.
Retractions of peer-reviewed scientific papers has risen 13,750% in this century
Modern peer review in science
The present and growing dark age: According to the watchdogs who run the website Retraction Watch, the number of peer-reviewed scientific papers that have been retracted each year has risen from 40 in 2000 to 5,500 in 2022, an astonishing increase of 13,750%.
According to these watchdogs, there are two reasons for this increase in research failure:
Retractions have risen sharply in recent years for two main reasons: first, sleuthing, largely by volunteers who comb academic literature for anomalies, and, second, major publishers’ (belated) recognition that their business models have made them susceptible to paper mills – scientific chop shops that sell everything from authorships to entire manuscripts to researchers who need to publish lest they perish.
These researchers are required – sometimes in stark terms – to publish papers in order to earn and keep jobs or to be promoted. The governments of some countries have even offered cash bonuses for publishing in certain journals. Any surprise, then, that some scientists cheat?
I think the watchdogs are missing the major and much more basic source for this problem. » Read more
SpaceX launches another 22 Starlink satellites
In what is turning into routine clockwork, SpaceX tonight completed its fourth launch in only the first ten days of August, placing 22 Starlink satellites into orbit using its Falcon 9 rocket lifting off from Cape Canaveral.
The first stage completed its ninth flight, landing safely on a drone ship in the Atlantic. The two fairings completed their tenth and eleventh flights respectively. At the time of posting the satellites themselves had not yet been deployed.
The leaders in the 2023 launch race:
55 SpaceX
33 China
11 Russia
6 Rocket Lab
6 India
American private enterprise now leads China in successful launches 63 to 33, and the entire world combined 63 to 55. SpaceX by itself is now tied with the entire world (excluding American companies) 55 to 55.
Tower of Power – Me & Mrs Jones
An evening pause: Performed live I think in 2010.
Hat tip Cotour.
Russia launches Luna-25 to the Moon
Click for interactive map.
After almost two decades of development, Russia today used its Soyuz-2 rocket to launch Luna-25, its first lander to the Moon since the 1970s.
The link is cued to the live stream, just prior to launch. It will take several days to get to the Moon and enter orbit, make some orbital adjustments, then land in Boguslawsky crater, as shown on the map to the right. It is likely its landing will occur before India’s Chandrayaan-3 lands on August 23rd but not certain, depending on the adjustments needed in lunar orbit. Both could even land on the same day.
The leaders in the 2023 launch race:
54 SpaceX
33 China
11 Russia
6 Rocket Lab
6 India
American private enterprise still leads China in successful launches 62 to 33, and the entire world combined 62 to 55, while SpaceX by itself now trails the entire world (excluding American companies) 54 to 55.