March 3, 2016 Zimmerman/Batchelor podcast
Embed below the fold. Entitled “The Wear and Tear of Zero Gravity” by John Batchelor.
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Category: Points of Information
Very brief descriptions, with appropriate links, of current or recent news items.
Building a log cabin, alone
An evening pause: This is the first part of a longer work. To quote the youtube webpage,
“Alone in the Wilderness” is the story of Dick Proenneke living in the Alaska wilderness. Dick filmed his adventures so he could show his relatives in the lower 48 states what life was like in Alaska, building his cabin, hunting for food and exploring the area. Bob Swerer has taken the best footage from Dick’s films and he has created 3 videos about Dick, “Alone in the Wilderness”, “Alaska, Silence and Solitude” and “The Frozen North”
I like this because it gives a good hint at what life was really like for the original mountain men who first explored the American west. They were resourceful, clever, strong-willed, and technologically very sophisticated. Dick Proenneke shows us how to do it again.
Hat tip Rocco.
Hubble finds galaxy with record-breaking redshift
The uncertainty of science: Using the Hubble Space Telescope astronomers have discovered a galaxy with the largest redshift ever measured, 11.1, making it the most distant object so far measured and only about 400 million years after the Big Bang..
The uncertainty is that all theories have said that this galaxy was not supposed to exist at that time.
However, the discovery also raises many new questions as the existence of such a bright and large galaxy is not predicted by theory. “It’s amazing that a galaxy so massive existed only 200 million to 300 million years after the very first stars started to form. It takes really fast growth, producing stars at a huge rate, to have formed a galaxy that is a billion solar masses so soon,” explains Garth Illingworth of the University of California, Santa Cruz.
Marijn Franx, a member of the team from the University of Leiden highlights: “The discovery of GN-z11 was a great surprise to us, as our earlier work had suggested that such bright galaxies should not exist so early in the Universe.” His colleague Ivo Labbe adds: “The discovery of GN-z11 showed us that our knowledge about the early Universe is still very restricted. How GN-z11 was created remains somewhat of a mystery for now.”
Titan’s changing shorelines
Cool image time! Using radar images taken during the past decade by Cassini scientists have discovered changes taking place along the shorelines of Titan’s hydrocarbon seas.
Analysis by Cassini scientists indicates that the bright features, informally known as the “magic island,” are a phenomenon that changes over time. They conclude that the brightening is due to either waves, solids at or beneath the surface or bubbles, with waves thought to be the most likely explanation. They think tides, sea level and seafloor changes are unlikely to be responsible for the brightening.
The images in the column at left show the same region of Ligeia Mare as seen by Cassini’s radar during flybys in (from top to bottom) 2007, 2013, 2014 and 2015.
These shoreline changes are not the only ones spotted by Cassini. However, because these are radar images, not visual, there are many uncertainties about what causes the changes, which is why they list several possibilities. For example, with radar, a simple roughness on the surface (such as waves) could cause a brightening.
Free government money for Aerojet Rocketdyne!
Crony capitalism: Even though ULA prefers Blue Origin’s engine for its Atlas 5, the Air Force continues to fund Aerojet Rocketdyne’s new engine.
The U.S. Air Force announced Feb. 29 it was investing $115 million this year, and with options, as much as $536 million over the next five years, in [Aerojet Rocketdyne’s] AR1, a new liquid oxygen- and kerosene-fueled main-stage engine. The contract award is part of an Air Force initiative to end reliance on the Russian-built RD-180 engine that powers ULA’s Atlas 5 workhorse rocket.
Aerojet says it has two potential other customers to use the engine, but will not name them. In reviewing the field, the only customer I can think of that might be interested would be Orbital ATK (for its Antares rocket), and even there I have doubts. Thus, it appears to me that these funds are really being distributed to prop up a company that is failing, not to build anything useful the government needs.
March 1, 2016 Zimmerman/Batchelor podcast
The embed is below the fold. I especially like John’s description for this podcast: “Space X Scrubbing. China Space Thieving. Russian Space Failing.”
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Trump winning open primaries, Cruz winning closed ones
Link here.
If true, why does this matter? Because so far the primary calendar has been heavily tilted toward open primaries. But there have been four closed elections: the Iowa caucus, the Nevada caucus, and Super Tuesday’s Oklahoma primary and Alaska caucus. Ted Cruz won three of those four closed elections.
This suggests that, as a number of polls have indicated, Trump’s victories have largely been aided by moderate Democratic voters crossing over to vote for him, mostly I suspect out of disgust at the extreme leftist tilt of their own party.
A more important factor to consider, however, is that the primaries will be increasingly shifting to closed primaries in the coming weeks. This weekend alone there are four primaries/caucuses, and they are all closed. No Democrats can vote in them. If Cruz tops Trump in most, it will indicate Trump’s true weakness within the Republican Party, a fact that could make it far more difficult for him to achieve the nomination than presently indicated.
And if Trump does well in these closed primaries? Then the nomination is likely his.
India’s space agency ISRO gets a budget boost
In its new budget approved by India’s government the country’s space agency ISRO was the only science agency to get a significant budget increase, approximately 7.3%.
In the short run this is good, as ISRO has been using its funds wisely and accomplishing a lot for a little, while trying to encourage private development in India’s aerospace industry. In the long run, however, this will not be good, as government agencies always grow more than they should while sucking the innovation and creativity from the private sector. This is what NASA did in the U.S.
Hopefully, India will see how things are changing in America with private enterprise reasserting itself after a half century of government stagnation in space development and copy what we are doing.
Astronauts return after 340 days on ISS
After 340 days in space astronauts Scott Kelly and Mikhail Kornienko safely returned to Earth early today.
Now the real research begins. Because Kelly has an identical twin, Mark Kelly, who is also a former astronaut, researchers will be able to gain a great deal of knowledge comparing the differences in how their bodies changed over the nearly full year, with one in weightlessness and the other on Earth.
However, what I want is longer missions, two or three years long, thus far exceeding what it would take to travel to and from Mars. Only then can we find out if humans will be able to make the journey safely.
Falcon 9 launch scrubbed again
In the heat of competition: SpaceX has once again scrubbed the Falcon 9 launch of a commercial communications satellite, this time due to high altitude winds.
They say they are now aiming for Friday.
The suicide of the GOP establishment
Link here.
Time and time again, grassroots and movement conservatives have expressed their opposition to all five of the key planks in Rubio’s platform. These Republicans do not support the Gang of Eight bill. They do not support Obama’s trade deals. They do not want to spend huge amounts of blood and treasure again in the Middle East. And they most certainly do not want the economy to look like it did in the fall of 2008.
These voters have tried, through every means available, to make their opposition felt. They are the reason that Eric Cantor is no longer in the House. They are the reason that the Gang of Eight bill didn’t pass. They are the reason that John Boehner is no longer speaker. And they are the reason that Donald Trump and Ted Cruz have dominated the polls for months.
Many people have urged the Rubio donor network, think-tank fellows and media supporters to back off on their policy demands — to do more than simply acknowledge “the voters are right to be angry.” In fact, Gov. Chris Christie advocated for compromise during a speech at St. Anselm’s College earlier this year. People such as former Reagan speechwriter Peggy Noonan wrote recently that the GOP must be more sensitive to the concerns of working-class voters, whom she dubbed the “unprotected.”
Nevertheless, even today, the Rubio supporters refuse to budge.
The Rubio supporters are also the same people in the GOP who tried to push Jeb Bush on us. The real tragedy is that if they had thrown their support to Ted Cruz, they might have been able to quell Donald Trump’s dominance in the polls. Instead, they have refused to face the reality that the general public does not support they policies, and have run like lemmings to the cliff by splitting the conservatives between Cruz and Rubio.
The result: The Republican Party stands a very good chance right now of nominating as its Presidential candidate someone who is as liberal as Bill Clinton and as reliable in what he says. Worse, polls continue to show him losing to the worst Democratic candidates offered in decades.
China’s next manned mission
The competition heats up: The next Chinese manned mission will occur in the fall of 2016 and will have the astronauts remain in space for 30 days on a new space station launched during the summer.
After the astronauts have completed their flight, China will then launch their first unmanned cargo craft, dubbed Tianzhou-1, to dock with the station, using a new medium-lift rocket, Long March 7, which will get its first test flight this coming June.
Georgia House passes space act
The competition heats up: In an effort to lure space tourism companies to Georgia, the state’s House has passed a law that would ban lawsuits by space tourists against the space companies that flew them.
The bill still needs approval from the state Senate.
Honing the search for alien civilizations
Worlds without end: In order to increase the odds of contacting extraterrestrial civilizations, astronomers have calculated the area in the sky where an alien-built Kepler could have seen the Earth transit the sun, thus increasing the chances that those alien-astronomers have discovered Earth and have tried to contact us.
“The key point of this strategy is that it confines the search area to a very small part of the sky. As a consequence, it might take us less than a human life span to find out whether or not there are extraterrestrial astronomers who have found the Earth. They may have detected Earth’s biogenic atmosphere and started to contact whoever is home,” explains René Heller from the MPS.
Not every star is equally well suited as a home of extraterrestrial life. The more massive a star, the shorter is its life span. Yet, a long stellar life is considered a prerequisite for the development of higher life forms. Therefore the researchers compiled a list of stars that are not only in the advantageous part of the sky but also offer good chances of hosting evolved forms of life, that is, intelligent life. The researchers compiled a list of 82 nearby Sun-like stars that satisfy their criteria. This catalogue can now serve as an immediate target list for SETI initiatives.
Air Force awards contracts for American rocket engine
The competition heats up: The Air Force today awarded developmental contracts worth $160 million total to both Aerojet Rocketdyne and the partnership of ULA/Blue Origin for the development of an American-built rocket engine to replace the Russian engines in the Atlas 5 rocket.
Here is the ULA press release.
SpaceX aims for Tuesday launch
In the heat of competition: SpaceX has set Tuesday, 6:35 pm (Eastern) for its fourth attempt to launch a commercial communications satellite.
UC-Berkeley Chemistry College to shutter?
The coming dark age: The University of California in Berkeley is considering disbanding its College of Chemistry to deal with $150 million pf debt.
One commenter noted this key fact: “What about African American Studies and Gender and Women’s Studies? Are those programs going to be affected too?” with two others adding sarcastically, “No, they are essential,” and “Because they teach such marketable skills.”
Falcon 9 launch scrubbed again
This time the launch abort occurred at T-0, when computers detected that the rocket’s fuel was not cold enough and would not produce the thrust required.
I was caving all day today and only returned late tonight.
Falcon 9 launch rescheduled for Sunday
SpaceX has scheduled their next Falcon 9 launch attempt for 6:47 pm (eastern) on Sunday, February 28.
IRS hack of private files much larger
Government in action: A computer hack of IRS files has now been revealed to be more than seven times larger than first announced.
Initially the IRS said about 100,000 tax records had been stolen. Then in August they admitted the number was really 334,000. Now they say it really is about 700,000. Wanna bet?