The layoffs at NASA

More layoffs yesterday at NASA, this time at the Marshall Space Flight Center. Also, this report gives a good overview of all the layoffs so far.

One question: The authorization bill that passed Congress on Wednesday night specifically required NASA to continue construction of a heavy-lift vehicle, quite similar in concept to Constellation. Why then is NASA management laying off all these Constellation workers? Granted, the authorization did not provide Constellation with as much money as previously budgeted, but the layoffs seem greater than necessary at this time, considering the budget differences. Also, the lack of a final budget from Congress might require these layoffs to occur temporarily, pending a new budget, but NASA is not making it clear that this is the case. Instead, they are letting a lot of people go without giving them any guidance about NASA’s future plans.

If the Obama administration was serious about fulfilling Congress’s legal requirement to build a heavy-lift vehicle (as deputy administration Lori Garver said they were on Thursday), I would have expected them to be more forthcoming to these NASA employees, if only to encourage them to remain available for rehiring, for at least a short time. That they have not is very telling.

Do not expect this heavy-lift vehicle to be built.

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Antarctic increase in sea ice since 1970 cannot be explained by ozone hole

In another paper published today in the Geophysical Research Letters of the American Geophysical Union, researchers have found, according to their computer model, that the increase in sea ice since 1970 in Antarctica cannot be explained by the ozone hole. (Note that the sea ice has been shrinking in the northern hemisphere while it has been growing in the south.) Key quote from paper:

It is presently unclear why the observed Southern Hemisphere sea ice extent trends are so different from those in the Northern Hemisphere. Previous studies have suggested that the cause might be related to atmospheric circulation changes induced by the stratospheric ozone hole. The results in this study are not consistent with this view and highlight the need for continued investigations of Antarctic sea ice extent trends.

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Modern climate models can’t predict sudden climate change

A paper published today in Geophysical Research Letters of the American Geophysical Union says that the general circulation climate models used by scientists today to predict things like global warming cannot predict past examples of similar sudden climate change. Key quote from abstract:

These [sudden] shifts are thus noise induced with very limited predictability, and early detection of them in the future might be wishful thinking.

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Watch out for those toxic paper clips!

The bureaucracy marches on! The Consumer Product Safety Commission wants the manufacturers of kids’ science kits to test the paper clips in those kits for lead and other toxic chemicals, even if the paper clips were purchased in an ordinary office supply store. Key quote

“It is crazy that the Hands-On Science Partnership needs to be concerned about doing lead tests on products purchased at an office supply store and then packaged into a science teaching kit for use with children,” Commissioner Nancy Nord wrote on her blog. “Even crazier is the fact that if a teacher buys the same paper clip at the same store and uses it for the same science teaching project, it’s okay.”

To me, this quote is even more disturbing:

Commissioners insist the regulations will not ban science kits and would be applied on a case-by-case basis. [emphasis mine]

In other words, the regulation will not be applied objectively, but subjective, at the whim of the regulators. Every product of every manufacturer will have to get the Commission’s approval before it can be sold.

If that isn’t a mandate for mischief, I don’t know what is.

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Listen to the sound of Babylonia

A researcher at the University of Cambridge is posting audio recordings on the web of Babylonian poetry, myths, and other texts, so that everyone can hear what the ancient languages sounded like. Key quote:

“In many cases [the works] are the equivalent of Old English tales like Beowulf,” Dr. Worthington added. “Through them, we meet gods, giants, monsters and all sorts of other weird and wonderful creatures. As stories they are amazing fun.”

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The state of the Sun, September 30, 2010

Time to update the state of the Sun, as seen by satellite data (the last update was in July). The graph below, posted today by Physikalisch- Meteorologisches Observatorium Davos (PMOD), shows the variation in the Sun’s Total Solar Irradiance since 1978. I have added a blue horizontal line to show that even now, two years after the Sun reached the lowest point in its most recent solar minimum, it has still not brightened enough to equal the lowest point in the two previous minimums. (Note that if we included the minimum from 1976, the Sun would still be below that as well.)

solar cycle as of Sept 30, 2010

Once again, the evidence is building that the Sun might be heading towards the weakest maximum seen to two centuries. And when that happened, things got very cold on Earth.

the sunspot cycle

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