evanb

36 ms·

391.
by evanb 5y ago
The Operation Paperclip scientists helped build rockets for the post-war era. Not bombs. The German / Austrian / Hungarian scientists that worked on the bomb came to the US years before the Manhattan project started.
392.
by evanb 5y ago
This is not a requirement for a system to lack chaos, nor is it a metric by which we can judge if a system DOES have chaos.
393.
by evanb 5y ago
See also https://en.wikipedia.org/wiki/Penrose_process
394.
by evanb 5y ago
Also a stand-alone user since 1pw4. This news finally got me to try pass, the command-line utility. https://www.passwordstore.org/ The format is plain text. You can git control your password repo. You can organize into d
395.
Schoonschip(en.wikipedia.org)
2 points by evanb 5y ago|0 comments
396.
by evanb 5y ago
The standard model of particle physics does predict the electron should have an EDM. https://en.wikipedia.org/wiki/Electron_electric_dipole_momen... However, a nonzero electron EDM indicates P and CP breaking; in the
397.
by evanb 5y ago
That’s not the full explanation; the antiproton is stable (or, is as stable as the proton). It’s that the net baryon number is 0 and that the flavor ‘quantum numbers’ aren’t conserved by the weak force. If you could turn off the weak force
398.
by evanb 5y ago
Appreciate what you’re saying but you may be interested in the historical origin of the chainsaw; it was indeed invented for surgery. https://youtu.be/Y6zPlk7drac
399.
by evanb 5y ago
“Promote the general Welfare” comes immediately after “provide for the common defense” in literally the first sentence of the constitution.
400.
by evanb 5y ago
UT Austin press release: https://news.utexas.edu/2021/07/24/ut-austin-mourns-death-of...
401.
by evanb 5y ago
Satellites in geosync are very VERY far away; much farther than Starlink's LEOs. So the risk of crashing into the atmosphere is much reduced; the risk of altering the appearance of the night sky is similarly reduced by the distance.
402.
by evanb 5y ago
Just to be absolutely pedantic, "one of the balls is red and the other is blue" IS a statement you can make. However, it's surprisingly not equivalent to asserting (xor (and (red? 'left) (blue? 'right))
403.
by evanb 5y ago
Even though the Ising model is a model of discrete variables, it is still possible to apply HMC to perform global updates, as we explain in https://arxiv.org/abs/1912.03278 However, without further improvement, HMC’s p
404.
by evanb 5y ago
If the Goldbach conjecture is true, such a scheme would be all zeros except in up two places, as long as the integer you want to encode is even. Even if the conjecture is true, the code must be ternary: to encode 6 you need to indicate 3 t
405.
by evanb 5y ago
The physics prize does go to "tooling" every now and then (blue LEDs, fiber optics, and CCDs are recent examples); the prize goes to the pioneers / inventors of the tools.
406.
by evanb 5y ago
Group theory for condensed matter physics from Dresselhaus, Dresselhaus, and Jorio.
407.
by evanb 5y ago
Original: https://arxiv.org/abs/2106.08238
408.
by evanb 5y ago
Agreed that the setting exists; disagree about what it does. What that option toggles what you see when you look at yourself. The audience always sees the unmirrored video. This is not clearly explained in the documentation. However,
409.
by evanb 5y ago
That only mirrors what you see when you look at yourself---it doesn't flip what everybody else sees.
410.
by evanb 5y ago
Were you using Zoom? I had a lot of trouble using either the OBS virtual camera or sharing the composition window---what was transmitted was either potato quality or the video lagged very far behind. After a LOT of debugging, I'm conv
411.
by evanb 5y ago
Obviously you must stick to the schedule to allow for passing of oncoming or overtaking rail traffic at sidings.
412.
by evanb 5y ago
His children's book, Every Night is Pizza Night , is a fantastic introduction to being an adventurous eater for small children.
413.
by evanb 5y ago
26 is for theories with bosons only. If you want fermions you need 10; 11 in M-theory as GP suggested.
414.
by evanb 5y ago
It'd be much easier to move if their ID and all of their documents were available to other governments in an easy-to-use compatible way. If only there were some sort of bloc-wide digital wallet...
415.
by evanb 5y ago
The interconnect on a tightly-coupled machine like this means it performs substantially better than the naively-equivalent distributed compute resources.
416.
by evanb 5y ago
> There are plenty of really minted PhDs who would be quite happy [...] for a postdoc with no teaching duties. As one of those people, I'm happy to move to the middle of nowhere, IF it's for a place with a stellar reputation th
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by evanb 5y ago
That’s not obvious because of the ultra low pressure.
418.
by evanb 5y ago
No unobtanium? The whole thing is premised on wormholes! Yes GR supports wormholes---sort of. They are dramatically unstable. Nobody knows how to make one, if such a thing is even possible. There are a bunch of planets, and they choose
419.
by evanb 5y ago
There’s a [perhaps apocryphal?] story about Onsager https://en.wikipedia.org/wiki/Lars_Onsager standing up at a conference and saying to someone discussing super conductivity, “No no no you’re off by a factor of two!”
420.
by evanb 5y ago
>It seems like a particle-based framework would necessarily be a lot more complicated. That’s true for the other forces as well! And yet after very careful study we know the electromagnetic field IS quantized, particles of light are pho

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