Saturday, September 24
Kumo Kumo Kumo Spider Edition
- The US wants to become a hydrogen production powerhouse. (The Verge)
- Why this won't work. (Robert Zubrin)
Repost, because people keep falling for this shit.
It's solar freaking roadways except about a thousand times more expensive.
- Sundar Pichai to Google employees: Quit whining and get to work, you useless wankers. (Thurrott.com)
You've spent most of the past decade hiring and promoting useless wankers. No sympathy. Go down in flames.
- Well, fuck: The US government, not satisfied with wasting money on "clean hydrogen", wants to ruin open source software. (Senate.Gov)
Yes, the Log4j debacle could have been fixed at any time and saved the world billions of dollars if someone had just provided a few thousand dollars in funding, but the US government is one of the worst groups to get involved, and defining open source software as infrastructure is one of the worst ways to do it.
- Physisicsts have finally figured out how high-temperature superconductors work. (Quanta)
High temperature here means around -140C (-220F). The original superconductors, which are well understood, functioned only at temperatures close to absolute zero - -273C / -459F - a temperature difficult and expensive to approach. You really need liquid helium for that. High temperature superconductors work in cheap and plentiful liquid nitrogen.
Oh, the answer? Super glue.
The story doesnâ€™t mention the naval mines issue, though.
Posted by: EdH at Sunday, September 25 2022 01:29 AM (eAtU4)
But, anyone with a basic grasp of fluid mechanics can follow the arguments that he is making, and may understand that his prior area of work is a bit relevant.
(Lots of people, apparently, do not have a basic grasp of fluid mechanics, much less fluid mechanics and thermodynamics.)
The German government can go die in a fire. Germany isn't some country like Andorra, or Vanatu, which may not have the internal resources that governments can call on to find out that they are full of crap.
Germany has Gottingen. Which at least historically was a pretty decent school for this stuff. Germany has no excuse for this. Unless it can be shown that every fluids and thermo faculty in Germany is a worthless person.
Now, I have not looked up the numbers, and checked Zubrin's back of the envelope.
But, hydrogen storage has always been a little bit suspect for a lot of applications.
It can make sense for rockets, because rockets are a pretty extreme application. (John Clark's Ignition! is a pretty fun and accessible read, if anyone hasn't read it.) Solid rocket fuel is partly aluminum, and burning aluminum is definitely not all that appropriate for a consumer automobile.
But, the American and other national legislatures have been insane for a long time when it comes to forcing crazy design decisions on automobile manufacturers.
Posted by: Pat Buckman at Sunday, September 25 2022 01:32 AM (r9O5h)
Somebody here, maybe you, linked to a freely available copy, that I ended up reading. Yeah, 10 out of 10. Very really quite extremely great and worthwhile.
Posted by: normal at Sunday, September 25 2022 12:55 PM (obo9H)
Posted by: normal at Sunday, September 25 2022 01:02 PM (obo9H)
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