Symmetry

41 ms·

601.
by Symmetry 3y ago
Escape velocity is just around 5 m/2 so don't pitch it too fast or it won't come back! Even a Little League pitcher should be able to throw a ball at 20 m/s or so.
602.
by Symmetry 3y ago
I bet the Galilean Moons of Jupiter are known to more people but yeah, Mars's are relatively well known.
603.
by Symmetry 3y ago
Next step, set up the Cape Dread port! http://www.projectrho.com/public_html/rocket/appcapedread.ph... EDIT: To summarize a big page, Demimos is relatively close to Low Earth Orbit in delta-v terms so it makes a
604.
by Symmetry 4y ago
When NVidia adopted Transmeta's technology to target ARM instructions with their Project Denver they added a facility to just run native code for bits that weren't hot spots.
605.
by Symmetry 4y ago
And like the proposed Mill design, the Crusoe had a skewed pipeline (the Mill folks call is phasing for some reason). That is, different parts of the instruction complete at different clocks, typically load then operations then stores allo
606.
by Symmetry 4y ago
My guess is that losing too many engines meant that they were too low, in too thick atmosphere for the speed they were reaching and with the reduced control authority form a missing gimbaling engine they couldn't maintain stability wit
607.
by Symmetry 4y ago
For myself, I'd feel like a test flight was a full success if it was able to test all the important bits. From that perspective not testing stage separation, second stage ignition, and reentry makes this a partial success but a partia
608.
by Symmetry 4y ago
Needing to make a big flame trench and deluge system might be the big takeaway from this flight. I'm not happy at the construction delays that'll entail but it that's what it takes for enough engines to get through liftoff i
609.
by Symmetry 4y ago
Yes. With 33 engines of a new design losing 1 or 2 would be pretty unremarkable and worth adding to the graphic. Losing 5 is getting into "needs improvement" and I'm sure SpaceX will be looking hard at the data they collect
610.
by Symmetry 4y ago
What I was really worried about was an explosion at the launch pad, that would have really delayed things so I'm glad that didn't happen. Par for the course in developing a new rocket seems to be two failures in the first 10 laun
611.
by Symmetry 4y ago
In a perfect world, why would electric cars be emitting any CO2? A carbon neutral electrical production is clearly possible right now with enough investment and we're moving in that direction now because it's profitable. Carbon
612.
by Symmetry 4y ago
Many landfills these days will capture the methane and sell it, at least in the developed world. So it can displace new methane entering the biosphere from wells.
613.
by Symmetry 4y ago
And most competing launch providers use solid boosters whose emissions are way worse via damage to the ozone layer.
614.
by Symmetry 4y ago
I made a DRY/YAGNI yin/yang sticker for my laptop a little while ago. https://i.redd.it/16qm2a3m7m991.jpg
615.
by Symmetry 4y ago
Physical systems aren't perfectly predictable, and so require feedback. You include a little more fuel than you think you need so that if you use more than expected, say because solar conditions make the atmospheric drag a bit higher,
616.
by Symmetry 4y ago
Looking at our handy solar system delta-v map[1] it takes 2.5 km/s of delta-v to get from the Moon's surface to an Earth intercept course (you can aerobrake to a landing) and 14.6 to get up from the Earth surface to the Moon'
617.
by Symmetry 4y ago
A pretty important piece of evidence on how the first eukaryotes came about. The two big schools of though were previously that symbiosis happened first before they merged or that the bacteria started out as a parasite living inside the ar
618.
by Symmetry 4y ago
Not quite, they have features of similar both typical archaea and eukaryotes, but living in close symbiosis with bacteria. We already pretty much knew that eukaryotes came from an archaea/bacteria merger, we're just much closer t
619.
by Symmetry 4y ago
I think the speed at which the first life evolved on Earth but the painful slowness with which photosynthesis, eukaryotes, and complex life evolved on Earth make me optimistic about finding life forms but pessimistic about finding intellige
620.
by Symmetry 4y ago
ARM's N-series cores are targeted at a somewhat lower performance point than top line x86 cores. That saves a bunch of transistors since there's a lot of diminishing returns. There's also design compromises not being made i
621.
by Symmetry 4y ago
The way stores used to work, when goods were relatively more expensive than labor, would be that you would go up to the store counter and ask for what you wanted and the clerk would fetch it from in back rather than the customer having to f
622.
by Symmetry 4y ago
Yes >Prompt: Someone said "Models are still expensive to run, hard to use, and frequently wrong" Does this also apply to human worker? >GPT4: This statement, while referring to AI models, can also apply to human workers in
623.
Loongson’s 3A5000: China’s Best Shot?(chipsandcheese.com)
2 points by Symmetry 4y ago|0 comments
624.
by Symmetry 4y ago
The existence of the Steam Deck has been a huge boon for those of us who plan Steam games on regular Linux desktops as well. It seems like nearly every Steam game I'd want to play these days works, and not just from publishers like Pa
625.
by Symmetry 4y ago
Our most basic intuitive notion of consciousness is that inanimate objects aren't conscious, awake people or animals are, and that sleeping people or animals aren't (except maybe when dreaming). Pursuing this line, there's a
626.
by Symmetry 4y ago
That's not entirely true. Back in the 1970s when we tightened up regulation the companies operating nuclear power plants in the US were selling power onto the grid on a cost plus basis. That is, they'd be paid for their expenses
627.
by Symmetry 4y ago
A more important factor than that, I think, is that the national security establishment in the US is the part of government most concerned with AI right now and they mostly see it as a matter of competition with China.
628.
by Symmetry 4y ago
In many cases we see that making effective use of a new technology requires a lot of other changes. Electrification brought large productivity gains to factories, but only after they were re-designed to be more spread out as to compacted a
629.
by Symmetry 4y ago
He also wrote his thoughts out longform. https://www.gatesnotes.com/The-Age-of-AI-Has-Begun
630.
by Symmetry 4y ago
Relatively reproducible builds of physical objects without having to get a full robotic assembly line going seems sort of interesting.

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