_hypx

98 ms·

541.
by _hypx 3y ago
Grid scale energy storage is basically solved once you realize that hydrogen storage is an option already. It's in the same boat as when photovoltaics got very cheap, but skeptics continued to deny that possibility for some years after
542.
by _hypx 3y ago
It is already below 50% and rapidly dropping. There is no significant difference in efficiency already, and this will vanish entirely within time. BEVs are simply lying about this fact. Energy storage will require hydrogen energy storage .
543.
by _hypx 3y ago
The accusation of hydrogen having bad efficiency is just something BEV companies came up with. It is basically marketing FUD. A more realistic analysis will show that there is very little difference between using hydrogen and direct electri
544.
by _hypx 3y ago
GPUs in the future will get more powerful. Especially if they are designed with LLMs in mind.
545.
by _hypx 3y ago
There's a real danger that people will just run LLMs on their local GPUs. It's not a guarantee that an online service is a profitable idea.
546.
by _hypx 3y ago
> First, I'd say that sometimes companies don't use the same tooling even if they could. One of the things that gave TSMC an advantage was that they did push EUV while Intel didn't. Intel did make some investments in EUV,
547.
by _hypx 3y ago
But we don’t live in a world where we expect carpenters to double the complexity of their output every 2 years. At some point, the theoretic limits of the tooling becomes a thing. I’m pretty sure you are confused about the optical system. A
548.
by _hypx 3y ago
This is something I’ve noticed for a while now: All of the major semiconductor manufacturers use the same set of tooling. In particular, they all use EUV lithography machines from ASML. So how can any one company maintain any sort of sustai
549.
Women CEOs (Finally) Outnumber Those Named John(bloomberg.com)
3 points by _hypx 3y ago|0 comments
550.
by _hypx 3y ago
No kidding. At this moment, Meta is still more highly valued than LVMH.
551.
Dirigible and Airship Design May Be Hinting at a New Way of Flying for All(autoevolution.com)
11 points by _hypx 3y ago|6 comments
552.
Hybrid-electric airships secure powerful megawatt generators(freethink.com)
1 points by _hypx 4y ago|0 comments
553.
by _hypx 4y ago
I don't think you do. The theoretical efficiency limit is 100% efficiency, same as charging a lithium ion battery. Reality is closer to this than what is in your head I suspect.
554.
by _hypx 4y ago
Then just have hyperspace or whatever. If you’re going to break the laws of physics for plot purposes, you don’t have to justify it.
555.
by _hypx 4y ago
As electrolysis is also an electrochemical process, it is identical in basic nature as charging a battery. These are statements revealing the writer's ignorance of the basic facts, proving the point that people are refusing to explore
556.
by _hypx 4y ago
The fact that you are trying to compare a working pilot plant with nuclear fusion shows your lack of seriousness.
557.
by _hypx 4y ago
That's absurd reasoning. Once you have a battery system, you don't worry about Carnot's theorem and therefore you aren't limited by the efficiency limits of heat engines. It's pretty much an imaginary limit after th
558.
by _hypx 4y ago
Magnetic monopoles are indeed speculative, but at least the theoretical foundations are pretty sound. Dirac predicted them after all, and they play nice with quantum mechanics. Wormholes and the like are where you get really wild problems l
559.
by _hypx 4y ago
Political realities can change. With enough pressure, governments will take other ideas more seriously. That is arguably the point of this. The same thing happened with green energy to begin with.
560.
by _hypx 4y ago
I always felt their reliance on wormholes being real a bit too much. It is too far on the "fiction" side of science fiction.
561.
by _hypx 4y ago
Gaseous, and at 700 bar (the standard pressure in use today).
562.
by _hypx 4y ago
Both are being used as the charge carrier in their respective batteries. If you contemplate a li-air battery, the reactions are basically the same.
563.
by _hypx 4y ago
> Would spending that on other chemistries (ex sodium ion) produce better results? You are still acting as if investment in one idea somehow precludes investment in another. This entire time, I was stating that we can easily justify vast
564.
by _hypx 4y ago
Clearly not, since the original article didn't even mention it and very few in the comments section brought it up either. It is seriously being ignored in a real way.
565.
by _hypx 4y ago
And lithium is somehow easy to deal with? This is really just another excuse. The point wasn't claiming those problems don't exist, it is asking why we are not seeing those problems as motivation for massive R&D spending in or
566.
by _hypx 4y ago
Even by volume, a tank of hydrogen has higher energy densities than li-ion batteries.
567.
by _hypx 4y ago
It is literally a battery chemistry. It should have broadly the same properties as li-ion batteries. There should not be any challenges, at least not ones that can't be solved via just spending more on R&D. Not to mention that you
568.
by _hypx 4y ago
Sweden has already producing green steel: https://www.theguardian.com/science/2021/aug/19/green-steel-... Large scale production is slated to happen before the end of the decade: https://www.b
569.
by _hypx 4y ago
And a fuel cell car today is completely different than one built in 1990 too. > Who is claiming this? You are claiming that. You seem intent to not accept the fact that hydrogen fuel cells are a form of battery technology that can advanc
570.
by _hypx 4y ago
> If we could spend $1T and have a high likelihood of a high density storage system that can run on clean grid energy, doesn’t waste large amounts of its input energy, can be viably deployed in all areas where vehicles need to be recharg

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