Why is the mercury arc rectifier getting a “what the fuck”? I don’t know much about them, are they more magic than glowing rocks, runes, levitation and demon cores?
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- It’s ok: you only get this value every two years. That way, even though it’s a decrease from the previous year you have actually no idea whether the figure is higher than two years before 
- The tweet is a lie, the photo is from a novelty shop (thx falcunculus@jlai.lu) 
- “Une graine dans le bocal piment” ? 
  5·1 month ago 5·1 month ago- Unfortunately not. Quantum teleportation is an awful name: it’s called that way because it implies “destroying” a quantum state somewhere, and “recreating” it identically somewhere else, effectively transmitting information. However, the process also requires a classical information transfer at some point, and is absolutely not instantaneous . It’s only useful for cryptography because it’s mathematically impossible to listen in on this information being transferred without disturbing it. - It’s one of the most unfavorable coolness-of-name vs. coolness-of-actual-thing ratio in physics. 
  131·1 month ago 131·1 month ago- I don’t know about this Milhouse business, but he did have some very salient points: that time he gushed blood uncontrollably from his neck and died has raised serious doubt in my previously staunch anti-gun disposition. Now I have to manually remind myself that most gun violence victims are unfortunately not Charlie Kirk. 
- Maybe one of them performed their spell over the dark web, with bitcoin as sacrifice. 
- Tolerance is not an absolute principle, it’s just a social contract. People who breach it aren’t protected by it; end of paradox. 
- That and making, in what should be seen as the sole crowning jewel upon a veritable turdwagon of a life as a professional waste of carbon, the best argument in favor of gun violence since Brian Thompson 
- At least he died doing what he loved 
  1·3 months ago 1·3 months ago- You know maybe I’m starting to understand your point. - On the surface your question is easy to answer: clock uncertainties are a thing, and are very analogous to space-position uncertainty. Also time-of-arrival is a question that you can pretty much always ask, and it’s precisely the “uncertain t for given x” to the usual “uncertain x for given t”. Conversely you don’t have the standard deviation of “just space”: as universal as it is, Delta x is always incarnated as some well-defined space variable in each setting. - But it’s also true that clock and time-of-arrival uncertainties are not what’s usually meant in the time-energy relation: in general it’s a mean duration (rather than a standard deviation) linked to a spectral width. And it does make sense, because quantum mechanics are all about probability densities in space propagating in a well-parametrized time. So Fourier on space=>uncertainties while Fourier on time=>actual duration/frequency. And if you go deeper than that, I’m used to thinking of the uncertainty principle in terms of Fourier because of the usual Delta x Delta p > 1/2 formulation, but for the full-blown Heisenberg-y formula you need operators, and you don’t have a generally defined time operator of the standard QM because of Pauli’s argument. - But that’s a whole thing in and of itself, because now I’m wondering about time of arrival operators, quantum clocks and their observables, and is Pauli’s argument as solid as that since people do be defining time operators now and it’s quite fun, so thanks for that. 
  3·3 months ago 3·3 months ago- Whether it’s energy-time or position-momentum, the uncertainty principle is just a consequence of two variables being linked via Fourier transform. So position and wave-vector therefore position and momentum, ans time and pulse and therefore time and energy. Sure, it only has consequences when you’re looking at time uncertainties and probabilistic durations, which is less common than space distributions. And sure it also happens in classical optics, that’s where all of this comes from. And I agree that “quantum fluctuations” is often a weird misleading term to talk about uncertainties. But I’m not sure how you end up with “no link to the uncertainty principle”? It’s literally the same relation between intervals in direct or Fourier space. 

Late nineties to early two thousands on an arch-based distro is Ayanami Rei territory for sure
EDIT: could also be Serial Expeirments Lain or Major Kusanagi depending on your age and horniness in asking this question