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Comment Re:Rosalind Franklin discovered it (Score 1) 58

I'm afraid that you, and history, ignored Rosalind Franklin, whose work was vital and also deserved the prize.

History didn't ignore her; her name is all over the histories of the discovery of the structure of DNA. She wasn't awarded the Nobel prize because Nobel prizes aren't awarded posthumously, but I agree if she had been alive, she should (and very likely would) have been added.

By the way, her work after leaving King's College, in elucidating the structure of viruses, was also groundbreaking.

The person whose work was vital in the x-ray crystallography of DNA and also deserved the prize is Raymond Gosling

Comment Ray Gosling imaged it (Score 1) 58

While the photo was taken by her assistant, the fact is that it was Franklin's expertise in X-ray crystallography that resulted in a superior level of image quality. Her contribution is deservedly significant because if she had not used such techniques to precisely control the humidity of the imaging chamber, the images Gosling took would not have had the resolution they did.

Nope. The technique was invented by Gosling back when he was working for Wilkins, before Franklin arrived at King's College. And, yes, in doing that work he learned that humidity was the key.

Not to downplay Franklin's role-- she was doing the hard work of interpretation of the x-ray diffraction patterns-- but Photo 51 was taken by Gosling.

To say that it was Gosling's photo, thus implying that he--of anyone at Kings College--should have received some measure of credit for the discovery,

Correct: he should have received some measure of credit. And, to be fair, he did: the Nature paper (in the same issue as Watson and Crick's) was authored by Franklin and Gosling.

But Watson, Crick, and Wilkins got a Nobel prize. Gosling, who did the actual work, finished his degree, couldn't find a job in Britain, and left the field. If there's a person who was unfairly erased from the histories, it's Raymond Goslling.

is a misrepresentation in the sense that a lab assistant whose responsibility is to operate machinery is not necessarily the one who devised the method or protocol of operation,

Maybe not. That was the excuse for why Jocelyn Bell didn't share the Nobel prize for discovering pulsars. But in this case Gosling was the one who devised the method and protocol, and did so before Franklin arrived at King's college.

There's several good books on the details (although I advise you to skip Watson's book the Double Helix, which is sensational but glosses over the contributions of everybody else.)

Comment Re:Fire code violation (Score 0) 181

Also (outside of California) wrongful imprisonment is a legal justification for the use of deadly force.

But California is intentionally destroying their former high-trust society as a pretext for totalitarianism, so ... whatever ... get out like everyone else with a brain.

Not too long ago U-Haul was offering free one-way hauls TO California because the escape rate was so lopsided.

Comment Re:Why Molten Salt is best Thorium Reactor (Score 2) 120

Small demonstration plant by 2040, so useless for addressing climate change.

Climate change is a long term problem. We will still need energy sources in 2040.

Nothing about them being able to use less enriched fuel or make it impossible to produce weapons grade material.

That's one of the selling points of thorium cycles, that it's more difficult to use to make weapons grade materials. Note "more difficult" may not mean "completely impossible."

The fuel being illegal has been an issue for some projects.

That would be highly-enriched uranium ("HEU"), not thorium

Comment Now if someone could come... (Score 3, Informative) 120

... up with a method to convert radiation to electricity directly, we'd be ready to back to nuclear power.

We have the means to produce electricity directly from radiation, betavoltaics: https://en.wikipedia.org/wiki/...

Depends on what kind of radiation. Betavoltaics convert beta radiation, but most of the nuclear power sources we talk about don't emit betas (energetic electrons). There are also alphavoltaic devices, but so far these tend to degrade due to radiation damage, so they have only limited lifetime. Actual nuclear reactors emit neutrons and fission fragments, which tend to radiation degrade anything nearby.

Using this on large scales is apparently still a problem

I'll say! Commercial devices (using tritium as the source) are in the microwatt range.

but we can use this for "nuclear batteries" such as those used on deep space probes,

Not yet flying on space missions, but the tech is getting better. I wrote a review on this a while back: https://ieeexplore.ieee.org/ab...

Comment Re:Heat ? (Score 2) 48

So the Seebeck effect can't be used recursively while the orbital passes through the shadow of the Earth?

Seebeck effect (aka thermoelectric generation) requires a hot side and a cold side. So, to generate power from this, you have to run the hot side hotter. The electronics you're trying to cool are on the hot side, and you want them to be cooler, not hotter.

ln summary, to the extend that you generate power from the heat, you aren't cooling efficiently.

Comment Re:Heat ? (Score 2) 48

So you're saying that there is no way to take the heat and run it through some sort of zero gravity steam turbine that converts the heat into electricity that can then be used by the system?

That would be what is called a "bottoming cycle"-- you take the waste heat and use it. But you still have to reject the waste heat, and you have to reject it at a colder temperature than the (hot side) temperature of the bottoming cycle.

So, for example, if your system is capable of rejecting waste heat at say 350 Kelvin, you could run your electronics at 400 Kelvin. Now if you reject your waste heat at 350 Kelvin, you can use the fifty-degree temperature difference to generate power.

That's the trade off: if you want to use the waste heat, you have to run at a higher temperature, because you need the lower temperature as the cold side of your thermodynamic cycle.

Comment Can't reject waste heat with a laser (Score 3, Informative) 48

Recycle the heat into power for the lasers,

You can't power a laser from waste heat. That violates the second law of thermodynamics.

A quick and non-technical explanation is that photons from lasers are coherent, that is, they have zero entropy (according to Boltzmann's law). Therefore, the entropy of the waste heat can't be carried away by the laser light.

(Yes I know that this means that the premise of Sundiver doesn't work.)

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