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Comment Re:CFC-free foam caused it (Score 1) 93

It was said at the time that the white paint on the early shuttle tanks served to also keep the foam together and reduce drag on it.

They scrapped it to save money and increase payload by a tiny fraction. But mostly to save money.

Engineers: this is necessary.
NASA Bean Counters: nah.

Every freakin' time.

Comment Re:Spoiler alert (Score 1) 86

Interesting.

I'm building a solar battery from LTO cells and am now wondering about adding a simple square driver.

Gotta see if they're NMC or not. 20,000 cycle rating natively might go to 40,000?

Quote:
```
The length of relaxation period was
the same as current pulse, resulting in a Duty Ratio of 50% under PC charg-
ing. The average current for all three charging modes were kept the same
(1C, i.e., 2.2 A), thus the current during PC charging (2C, i.e., 4.4 A) was
twice as large as that during CC charging.
```

Comment Re:Do people realize this is nuclear energy? (Score 1) 41

> Only the Soviets were so uncaring for public safety to build a nuclear power plant like that,

Years ago a commenter here claimed to have been involved with Chernobyl and the way it went down is that a grad student in nuclear engineering wanted to run his pet theory experiment on the Chernobyl reactor.

Everybody said no up and down the chain.

Bu his father was high up in the Politburo and ordered it.

Soviets do what they're told.

It sounds plausible enough that a smart researcher could probably find the father and son from records.

Comment Current Fad Explains Fermi Paradox (Score 1) 314

If you follow this subject long enough it is obvious that this pattern will replay.

Ten years ago it was nanotechnology that explained the Fermi Paradox.

Next decade it might be psychedelics or something.

However

> and the total lack of evidence that they do exist

That is false. There is an embargo on scientifically statistically significant evidence in the public domain (go ahead and try to FOIA it - say Nimitz/Princeton, and see what you get - it's been denied repeatedly).

The existing eyewitness testimony would win any civil or criminal court case.

Hynek reassessed based on this.

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I tell them to turn to the study of mathematics, for it is only there that they might escape the lusts of the flesh. -- Thomas Mann, "The Magic Mountain"

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