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This is well short of the maximal violation (Q = 2 sqrt(2) ~ 2.8). But AFAICT the Aspect experiment uses polarization angles that should give the maximal violation What gives? Have I goofed? Or am I missing something? Is it the cryptic remark about solid angles & efficiencies?pic.twitter.com/w4uhbfiEq5
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A question for people who know about Bell inequalities: in the 1982 Aspect paper they present them in this form (a version of the CHSH inequality), with an experimental value (& violation) of S = 0.101pic.twitter.com/MR1CcBfO2q
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A few days ago someone DM'ed me, then immediately deleted their account. Since then, Twitter randomly does this (despite the fact that I've read the DM). Anyone know how to get this bug fixed? Small, but irritating.pic.twitter.com/KHqie3sica
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The great John McPhee, when asked about his experience as an environmental writer. (I find this passage extremely striking, & reread it at least once or twice every year. It's from a much longer interview: https://www.theparisreview.org/interviews/5997/john-mcphee-the-art-of-nonfiction-no-3-john-mcphee … )pic.twitter.com/ktFLDJyFvD
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A photo I find fascinating is this one. It's Jimmy Carter standing inside the control room at 3 Mile Island, a few days after the accident. He deserves a lot of credit for that, IMO.pic.twitter.com/9GdnSGLVhK
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Curious on two questions: (1) Why do you think nuclear has stagnated so much since the early 80s (when capacity pretty much maxed out)? What can be done to shift that? [I'd love a good answer! I've spent a lot of time searching for one.]pic.twitter.com/pomMuNCnvl
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He also makes the assertion that the IPCC had decided the science is settled in 1988. That is unambiguously wrong: the IPCC's first assessment report (1990) has a high degree of uncertainty:pic.twitter.com/svIyOmNl7p
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Fascinating little tidbit: no WTO case law on carbon leakage:pic.twitter.com/sgG5wxC8uQ
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This is a fascinating comment in the Economist. It seems obviously wrong, and (they claim) an opinion held by an entire profession. A carbon tax seems like a very good way of partially solving the problem...pic.twitter.com/41WyHKuIjZ
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This paper explores an interesting idea - studying the network structure (& changes) associated to scientific consensus formation: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3163460/ … But somehow it seems to ignore the role that new ideas, facts, and explanations play.pic.twitter.com/bNJpRY0oP7
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Feynman: "What is not surrounded by uncertainty cannot be the truth". It requires some caveats, which are more obviously implicit in the longer piece this comes from. With those caveats, this becomes extremely wise, in my opinion.pic.twitter.com/nhLncSticr
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Also fun to imagine dinner parties based on small neighbourhoods of the map:pic.twitter.com/aGgtEl2E69
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High school exit exam scores in Poland. Guess the passing score. Seems to be legit, from: https://web.archive.org/web/20141213135754/http://www.cke.edu.pl/images/files/matura/informacje_o_wynikach/2013/2013_Matura.pdf …pic.twitter.com/sHboCCnAZr
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The Falcon 1 got to orbit for a little over $90 million dollars. What's the minimal amount it could be done for today, starting a rocket company from scratch, knowing what we now know? https://en.wikipedia.org/wiki/Falcon_1 pic.twitter.com/eK77CI6MC5
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I suspect a big part of it is that oil prices really spiked.pic.twitter.com/6uGxXAaJqg
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This is not, I suspect, a modern problem, but rather a perennial problem: leaning in to uncertainty.pic.twitter.com/cDHgSvwGHJ
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Incidentaly, Shereshevsky - the 5-sense synaesthete with a nearly perfect memory - apparently tried pretty hard to find ways to forget. This is Wikipedia; Luria's book has quite a bit more:pic.twitter.com/0tiFQXXo1T
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The notion overlaps with, but is not the same as,
@paulg's notion of what a city or culture is telling you: http://www.paulgraham.com/cities.html pic.twitter.com/2JW0Q9JGsm
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