woodandsteel

6 ms·

1.
by woodandsteel 6y ago
Ok, but that still doesn't answer my question of what specifically SpaceX did differently. For instance, you said bigger temperatures are needed and that is limited by existing materials. So did SpaceX invent materials that could stand
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by woodandsteel 6y ago
Does anyone know what SpaceX did special in designing and building the Raptor that allows it to reach such a high pressure?
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by woodandsteel 6y ago
Top-level ev's like the Model 3 are already superior for most drivers. The only problem is cost, and that is being fixed in the coming years through steadily falling battery prices. Other use cases like aviation and ocean boats are mo
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by woodandsteel 6y ago
I guess you could make a case that, today, SLS is further along. But SpaceX is moving several times faster here than SLS, so in any case it is going to be up and flying regularly long before SLS. And in terms of cost per weight to orbit, i
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by woodandsteel 6y ago
So it looks like I was mistaken.
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by woodandsteel 6y ago
The effect of national policies vary according to region. But let me ask, what do you think causes homelessness?
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by woodandsteel 6y ago
That was one line of thought that lead to the rejection of the Enlightenment view of the powers of human reason, but there were others.
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by woodandsteel 6y ago
Here's some historical background. In the 19th century the West enjoyed an extraordinary period of peace, prosperity, and technological progress, all under the guidance of Enlightenment philosophy, with its focus on the supposedly unli
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by woodandsteel 6y ago
He never stopped thinking about philosophical problems, and when he returned to academia his views had changed radically.
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by woodandsteel 6y ago
I brought in conservatism because homeless is in part due to national level policies. Conservatives and liberals agree on that.
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by woodandsteel 6y ago
The article presents the expert case for why hyperloop is doomed to fail. Normally in this sort of situation, I assume the experts are correct, but not in this case. Let me explain why. The reason is that we have been in this situation seve
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by woodandsteel 6y ago
Conservatives explain homelessness as due to liberalism. They say this works two ways. In way, liberal values causes people to make poor life decisions that lead to them lose their jobs. In the other way, liberal economic policies lead to a
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by woodandsteel 6y ago
Question: why is this called a supercapacitor, rather than just a standard one?
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by woodandsteel 6y ago
One of the reasons Musk is a genius is he can figure out these sorts of synergies.
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by woodandsteel 6y ago
This is too expensive and short range to sell in any significant numbers. That said, batteries are steadily becoming more energy-dense and less expensive. That means the proportion of cases where an electric boat makes sense will be steadil
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by woodandsteel 6y ago
Good point, so maybe that's their motive.
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by woodandsteel 6y ago
The first stage is potentially reusable, but according to the Wikipedia article this has not been funded, so when it starts flying next year it will be expended. The thrusters are reusable, but you need a whole lot more than that. Maybe s
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by woodandsteel 6y ago
I have no idea whether or not Tesla's stock is over-priced. However, it is definitely more than an auto company. It has a solar division, and it make electricity storage systems for home and utilities. Also, there are strong indicatio
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by woodandsteel 6y ago
Former interpersonal skills trainer here. The comments have a lot of good suggestions. I would like to reinforce the emphasis on listening, and the idea of practicing one skill until you have it down, and then moving on to another. Also it
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by woodandsteel 6y ago
When the ULA Vulcan was first announced, the plan was the engines, which are 90% of the cost of the first stage, would be recoverable and reusable. The idea was the engine section would detach from the rest of the rocket, fall a ways and th
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by woodandsteel 6y ago
I recall at the time of the purchase some, I think it included Cringely, said that Red Hat culture was going to take over IBM and save it. Alas, it looks like that is not going to happen.
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by woodandsteel 6y ago
That's technically true, but it doesn't do anything to advance the discussion of the issues the article raises. In particular, I really doubt that anyone who read the article was mislead by its use of the technically incorrect ter
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by woodandsteel 6y ago
It may well be that hydrogen is the fuel of the future for airlines. The problem is that with the rate global climate change is happening, we can't wait decades for a solution. We need something as soon as possible, and as far as I can
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by woodandsteel 6y ago
I have far too many books to read. Could you perhaps give me a summary of his views?
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by woodandsteel 6y ago
You have a very unconventional meaning for the term "fake"
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by woodandsteel 6y ago
Is anybody building a plane that makes use of these new technologies?
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by woodandsteel 6y ago
Any alternative must use renewable energy. The question is whether that should be used to produce hydrogen or synfuel kerosene.
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by woodandsteel 6y ago
If I understand the article correctly, Sowell thinks that blacks have a highly inferior status today because they have a culture that is not suited to succeeding in modern society. If we assume Sowell is correct about that, then my reply is
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by woodandsteel 6y ago
One gigantic advantage for synfuel kerosene that is carbon-neutral because it is produced with renewable energy, is you can continue to use the present airliner fleet. With hydrogen you have to spend many trillions of dollars replacing it.
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by woodandsteel 6y ago
Two sorts of questions for those who support this idea 1) If is is so workable, then why don't we have hydrogen test planes flying today? Are there any technological problems that remain to be solved? 2) How is hydrogen supposed to be

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