marze

6 ms·

1.
by marze 19d ago
For some tasks, surveys in particular, field of view is critical. You would need many Hubble telescopes to do what Roman can do mapping everything out there. "What really makes Roman stand out is that it is designed for wide-field imag
2.
by marze 9mo ago
"Tesla, where we make the impossible late"
3.
by marze 9mo ago
Astrophysics
4.
by marze 9mo ago
If China had "no regulations" and was building out 100% coal, no one would be worrying that China industry would have an advantage due to low electricity cost vs rest of world.
5.
by marze 10mo ago
So I haven't looked through the comments, and assume this has been discussed, but the simple solution is to limit contracts to, say, $4M, and pay only on successful completion. Then build a large project through a series of smaller ste
6.
by marze 10mo ago
I was interested to learn recently that Alan Turing believed telepathy was a real thing. At least that is what someone wrote.
7.
by marze 10mo ago
To me, the interesting question is, were they the first to come up with the concept of communicating while jumping around on a random-like sequence of frequencies. What was the prior art?
8.
by marze 10mo ago
It may have been 15 minutes to both go down and explore, it mentioned 4 minutes at the bottom. The quote: "15-minute descent and exploration"
9.
by marze 10mo ago
It will be interesting to see who owns all the compute hardware in a few years, that cost billions now, and what becomes of it. With an expected useful lifetime so short the depreciation rate is insane.
10.
by marze 10mo ago
I find the article unconvincing, although I'm open to being convinced. With historical hindsight, it should be easy to see if the Lamarr et al patent seems novel. Just because an examiner doesn't allow a claim, I don't see th
11.
by marze 1y ago
It might just be that there are a lot more cheap pizza locations than fancy ones. This fellow also stays with friends.
12.
by marze 1y ago
My brother has a friend who is the modern day equivalent. He travels North America by bike, eats pizza from cheap pizza restaurant dumpsters.
13.
by marze 1y ago
Once there are 50M electric cars parked here and there, the solution will be even more obvious.
14.
by marze 1y ago
Also, it took 10 and 14 seconds to switch them back on. If it was an accidental switch, you would think it would have been quicker to switch them back.
15.
by marze 1y ago
You mention "brain fart". There is certainly a long history of pilots selecting the wrong lever, or wrong switch. So, it is possible the pilot who denied switching the fuel off thought he had switched something else.
16.
by marze 1y ago
As in, "an electric vehicle fleet that charges during the day and powers the grid at night if the owner opts in"?
17.
by marze 1y ago
Transmission lines are a interesting idea, but expensive. Once solar is cheap (like now, as it already is), you can put in 3x what is needed on a sunny day, and power everything on cloudy days. Solar runs on cloudy days. Night obviously req
18.
by marze 1y ago
Against the cost of a lower payload fraction. Say you get 4% with TSTO, 2% with SSTO. And if you run into trouble with the design, the SSTO payload moves towards 0%. Your operational savings need to compensate for a doubling of cost per uni
19.
by marze 1y ago
References?
20.
by marze 1y ago
Wasn't a correlation with elderly drivers and the unintended accretion found in the Toyota cases?
21.
by marze 1y ago
A legal mandate should be made to require this on all motorbikes.
22.
by marze 2y ago
Oops, you're right! So legacy launch vehicles with the exception of Shuttle lift of leisurely.
23.
by marze 2y ago
That is incorrect. Shuttle liftoff thrust was 5.7 million pounds, giving a ratio of 1.25. At liftoff, each SRB produces 2.65 million pounds thrust [1]. Using Wikipedia numbers instead (2.8 million pounds for SRB thrust at liftoff [2]) gives
24.
by marze 2y ago
Historic rockets around 1.2, including Shuttle, check your numbers. Starship is not a "historic rocket". It and Falcon 9 fly a trajectory that is optimized for something else, not max payload for a set first stage thrust.
25.
by marze 2y ago
That is a trajectory optimized for payload mass, with a set amount of first stage thrust. It is quite typical, historically. It just looks extra slow since the New Glenn rocket is quite enormous relative to historic rockets. An impressive f
26.
by marze 2y ago
This one looks fine to me from the outside: https://x.com/camoPirate_xXx/status/1877749643465134141
27.
by marze 2y ago
Everyone with a fire-hardened house should be feeling good. If all Pacific Palisades houses were fire-hardened, the fire would have burned vegetation but few houses. Even modest fire hardening would help. If a wood-frame house burns, it is
28.
by marze 2y ago
One would certainly hope that reconstruction would involve houses with concrete exteriors, or masonry. It would be silly to build a bunch of wood houses. Especially for luxury homes, a concrete shell should only add 1% to the overall cost.
29.
by marze 2y ago
Does anyone know if the insurance companies gave discounts to houses that had fire resistant improvements, in the areas that burned in these fires?
30.
by marze 2y ago
Probably a more pertinent question would be: can you construct houses that would not burn in a Santa Ana if all the vegetation and landscaping nearby burned. If you have fire resistant structures and only vegetation burned, not any structur

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