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angiosperm
searching Neon…
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Ask HN: Bose-Einstein Condensate Qubits
1 points
by
angiosperm
2y ago
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0 comments
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by
angiosperm
2y ago
Starship cans are pathetically inadequate to support even a Mars base, never mind a Mars colony.
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by
angiosperm
2y ago
Translating it back to C or C++ afterward, it would be equally as safe, and easier to deploy.
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Actually-Practical Orbital Solar Power
4 points
by
angiosperm
2y ago
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0 comments
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by
angiosperm
2y ago
Curiously, though, we don't really know it is coded in DNA. Michael Levin has been discovering lately that biology is more complicated than we thought. His YT videos are mind-boggling. Flatworm genetics are a dog's breakfast that
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by
angiosperm
2y ago
Strontium-90 has advantages. At density 2.6 vs 12, you can afford to loft more of it to compensate for its 28y half-life, and still come out ahead provided you can dispose of the extra heat at first. Few missions need to run decades.
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by
angiosperm
2y ago
Arrayed as a thin film on a substrate, you can use the kinetic energy of the alpha particles directly for thrust. The substrate will need to dissipate some heat from nuclei emitted in the wrong direction.
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angiosperm
2y ago
Those use strontium-90, which decays much faster than americium-241. That makes it hotter, at first, but its useful life is less. Being more than 4x less dense, you might carry enough more to make up the difference (and discard the extra he
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by
angiosperm
2y ago
Which C compiler doesn't pack bitfields? Anything on x86 or ARM is bound by the ABI to pack in a standard and link-compatible way. Seems there would only be a problem on some proprietary compiler for an embedded, bespoke target.
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angiosperm
2y ago
It is much worse than just the three extra test-and-branch operations, because they will be serialized through one ALU.
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by
angiosperm
2y ago
The doesn't say whether the C-145As built in Poland for the US Air Force still had the fault, or the SkyTrucks built until 2019. We might guess that since the fault wasn't in the plans, they would not get it, but that might depend
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by
angiosperm
2y ago
After scrutiny this seems to be "Coroutines and Effects" in, particularly, Rust.
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by
angiosperm
2y ago
Not if dengue is an urban phenomenon.
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by
angiosperm
2y ago
I always wonder which of these smaller sauropods are really just juveniles. Why don't we find any juveniles of the big ones?
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angiosperm
2y ago
Doesn't say what it is or how it is imagined to work. Is there an assumption the dust is all negatively-charged? Or positively? Or mixed?
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by
angiosperm
2y ago
Is the language statically-typed? If not, why not?
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by
angiosperm
2y ago
Right-wing radio is heavily subsidized by right-wing institutions funded by the billionaires we all know about. It is happy to repeat lies, without shame, at length until they are believed. No non-subsidized radio station can compete, so al
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by
angiosperm
2y ago
People were navigating out of sight of land, and reached Australia tens of thousands of years before this. They might have reached North America, too. Anyway we know people got there because they butchered the Hartley mammoth 37kya.
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by
angiosperm
2y ago
We know Australia was already occupied at least 40kya, and maybe 60kya, and they can only have got there by sailing out of sight of land, even when sea levels were at their lowest (~400ft below current level). Neanderthals were on all east
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by
angiosperm
2y ago
Poor build quality, unreliability, and extremely high repair costs keep away another group. If you have a Tesla, get the suspension checked at least twice a year, and after hitting any pothole. A broken suspension can kill you.
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by
angiosperm
2y ago
They always call these "floating" gardens, but AFAICT they are always firmly attached to the bottom. What they are more like is flooded raised beds. The illustration in the article even seems to show them floating, but the descrip
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by
angiosperm
2y ago
This all falls under "it is possible to kill yourself by stupidity", with nothing specific to powering appliances from a battery/inverter. People who take the initiative to set up such a system self-select for attention to de
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angiosperm
2y ago
There is no hint of passion. It is just formulaic decoration. The only interest for viewers would be in the clothing styles, which would track trends in Rome, and so need to be painted over frequently. Comparisons to Hummel are more appropr
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by
angiosperm
2y ago
The extension cords mentioned are all interior-to-interior. There is no magickal difference between an extension-cord wire and a like-gauge Romex wire. The former bends easier. The only outdoor wiring mentioned is 48V.
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by
angiosperm
2y ago
There are languages that have no relative directions. You never "turn left", you only "turn south" or whatever. People who grow up with one of those as their first language all have absolute direction, even two-year-olds
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angiosperm
2y ago
Obviously the extension cord you use needs to be rated for the power it carries. Anyone buying extension cords can see there are different sizes. They are well-labeled, and it is easy to look up the gauge needed for its length and what is t
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angiosperm
2y ago
Wires from panels in parallel will all be at, typically, 48VDC. Voltages add only when you wire in series. No "live parts" are exposed in modern systems. The quoted regulations govern construction. Residents have much greater lati
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angiosperm
2y ago
Incorrectly, if so.
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angiosperm
2y ago
The "load rating" on the cords exceeds the total power delivery capability of the system. It has its own circuit breakers. The manufacturers are well aware of risks, for liability reasons if nothing else, and have contained them i
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angiosperm
2y ago
Technically, to have been circumcised, King David would first need to have existed. However, even without existing, notional David could be described as having been circumcised. Presenting an image uncircumcised, as Michelangelo did, then
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