That’s not really how quantum entanglement works. When particles are entangled, their quantum mechanical states cannot be described independently. So you couldn’t write down a waveform for just one particle and have it correctly describe reality, you would need the waveform of the entire state and therefore all entangled particles.
As a consequence, certain physical observables can be highly correlated between the particles. For example, if the spin of the overall entangled state of 2 particles is 0, then the spin of 1 particle will be exactly opposite the spin of the other. But these spins are only defined upon measurement (interaction with a system that is deterministic), and at that point the entangled state is collapsed. There’s no mechanism for transporting information while maintaining an entangled state.
Ignoring this fundamental issue, it still wouldn’t be possible to maintain an entangled state between particles in a pair of twins for any practical amount of time. Maintaining coherence in qubits (entailed bits) is one of the big challenges in quantum computing. If the qubits interact with the environment it breaks their entanglement. Even just thermal vibrations will destroy the state. So typically qubits are held at near absolute 0 in a dilution refrigerator. Even still, the longest a qubit has been kept coherent is 5 seconds.
Thanks, been studying a bit about entanglement, super determinism and all that. I thought it was an interesting thought about the twins but I realized it wasn’t likely for the reasons you gave. It’s almost like distance between objects is the weird part about our universe, not it’s quantum material, thus why the entanglement seems strange at a distance. The more I study about it, the more that our 3 dimensions isn’t fundamental, but only a result of wave collapse - this is why the photon doesn’t seem to care how much we try and passively manipulate it, only how it’s finally collapsed. Like how qubits can only exist in their uncertain phase for 5 secs - it’s hard to keep it from interacting/collapsing. Perhaps antimatter annihilates with our matter because of how differently the two matter types collapse their particles from each other?  It’s all so interesting…
One of my favorite scenes is where Seven is handing Naomi a stack of PADDs: “Read this one, then this one, then all these…” Naomi internal: “Bitch, this coulda been an email…”
Oh shit good question. I’m gonna say no because I was really trying to ask about how much ice/water/dust is involved, but I’m also curious about the air.
Alternative theories of gravity are like alternative theories of medicine, they tend to be thoroughly invalidated and none are anywhere near as effective as the mainstream theory. As the wiki article you linked notes:
However, such models are no longer regarded as viable theories within the mainstream scientific community and general relativity is now the standard model to describe gravitation without the use of actions at a distance.
General relativitiy is one of the most tested, validated theories in physics. It is incredibly successful, not just describing the attraction of massive bodies but also describing frame dragging (solving a longstanding mystery on the retrograde motion of Mercury that Newtonian gravitation couldn’t explain), and predicting gravitational lensing and gravitational waves, both of which have been observed since and are perfectly described by GR.
An alternate model should attempt to solve a problem in the current leading one, for example giving a more fundamental explanation, or working at different scales where the current model fails (quantum gravity theories, for example). A good alternative model will also give results that are consistent with all existing observations, which is one area that every alternative theory of gravity I’m aware of fails. What problems in GR are you looking to resolve with an alternate gravitational model?
I’m not interested in questioning Einstein’s gravity - it’s super successful. I was interested in the history and alternative ideas that beaches out and died and the Wiki did have some decent info and even papers on “ether.” Fascinating and maybe intuitive for its time. It’s very hard to find any writing on postulating the mechanics that cause gravity to warp space/time. I was mostly interested in finding if there was some kind of wave function (not a graviton) within to describe the, “why.” There’s so much energy within atoms that you’d think there was more than enough room for hypotheticals, but none that are famous enough to discover on the Internet.
tl;dr no, i don’t think newly developed allergies can kill you. #notadoctor
did you have a peanut allergy earlier on? personally always had a mild allergy to basically everything. now i live with cats, who make it worse, but before that i was always sneezing and my eyes were going bonkers, regardless.
Hi there! Looks like you linked to a Lemmy community using a URL instead of its name, which doesn’t work well for people on different instances. Try fixing it like this: !nostupidquestions
Thanks, will check that one out. I do like things that are a little more on the technical side, but it’s a fine balance between going deep and keeping it understandable. Especially when it’s outside of your field of study.
Here's a video from Dr. David Barker, who leads the Rosetta@Home project, describing how that project's computing has helped COVID research. https://www.youtube.com/watch?v=ODEIN5V3yLg
This seems brilliant, I wonder what will be the efficiency of such system, it seems like it could almost power itself as long as you supply it with salt water (and have the Fresh water column outlet lower than the inlet). What am I missing?
Hi, could you expand on your question (or questions) in the main post? The more clear your questions are, the easier it’ll be for someone to address them. Thanks!
Copper metal "dissolves" in nitric acid (HNO3). Actually, the nitrate ion oxidizes the copper metal to copper (II) ion while itself being transformed to NO2 gas in the process; the copper (II) ion then binds to six water molecules.
/r/askscience was one of the highlights of Reddit - I’d love to help establish a similar community here in /c/askscience. I especially liked that posts and followup questions were rewarded for being inquisitive, and that off topic/inaccurate responses were removed. Posts on topics I’m familiar with were filled with scientific information, and I learned a lot from posts on topics outside my area of expertise (also the ones in my area of expertise, to be honest).
I have a science background (nuclear physics) and lots of experience communicating with remote collaborators. I’m fairly active on lemmy (on another account, I created this one to be my semi-professional one) and would generally have no problem checking the site at least 3 times a day. And I have no issues with mod coordination over Discord.
We are all very likely doing it now with most of what we believe to be the laws of physics. While they may seem to reasonably explain the phenomena we have been able to observe that represents such an infinitesimal fraction of the universe that the margin for error is astronomical.
So, the purveyor of the electromagnetic force is the photon, as in visible light and radiation. If you look into it you find talk of “virtual photons” being the purveyors of magnetic force, but it seems they are more of a mathematical construct, and if you read enough about it, it becomes clear that it’s a whole lot of technical language that boils down to, “we dunno”.
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