Physics

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BearOfaTime , in Automatic Balancing Balls

Is this the same mechanism used by balancing beads used in motorcycle wheels?

nik282000 OP ,
@nik282000@lemmy.ca avatar

Yup!

Omega_Man , in Automatic Balancing Balls

Very interesting stuff. Also, a toroidal void is what I call taking a dump after eating some donuts.

nik282000 OP ,
@nik282000@lemmy.ca avatar

I found it really unintuitive at first because I kept thinking of the CD-ROM spindle as rigid. Once I realized that the whole system wobbled I had an awesome brain-candy moment and it all made sense.

I would have thought Toroidal Void would be a band name, they could open for The Spherical Cows.

Zachariah , in Automatic Balancing Balls
@Zachariah@lemmy.world avatar

fascinating, TIL

ThePyroPython , in Large Hadron Rap

Oh wow, I remember watching this back in 2008 when they switched the LHC on for the first time.

niktemadur , (edited ) in Where do particles come from? - Sixty Symbols

Ever since I was a boy, I've been fascinated by astronomy and physics, have read a bunch of books - including Alan Guth's "The Inflationary Universe" - and watched a ton of content, from "Cosmos" (as a boy when it first aired) to nearly every PBS Spacetime video (among other hard science YouTube channels).

This video is the first time I've ever come across the Oscillon, as well as the Truth Quark and Beauty Quark in another one of this channel's videos, and at this point in my life, to be surprised by three whole new particles in one evening is kinda thrilling.

Here's the one that mentions the Truth and Beauty Quarks.

Kolanaki , in Where do particles come from? - Sixty Symbols
@Kolanaki@yiffit.net avatar

Particle colliders can make new particles, but how do they get the particles they smash to begin with? 🤔

nooneescapesthelaw , (edited ) in A question for the Physics communities

Can you elaborate on the portal? What does it do, is it between two locations or is it just a hole, or is it just a black circle?

rah , in A question for the Physics communities

The scientific method doesn't rule out any phenomena, it simply provides a method of investigating phenomena.

GardenVarietyAnxiety OP ,

I should have put more emphasis on the other part: The possibility, however unlikely, that a wave function "cascade" would create (what at least appears to be) a black portal.

rah ,

a wave function "cascade"

I'm not sure what you're referring to. It sounds like you've heard some physics words, misunderstood them, and are regurgitating them based on that misunderstanding.

GardenVarietyAnxiety OP ,

I'm asking questions based on "physics words" I've heard, yeah.

I just used cascade to describe many waves collapsing to create a whole.

I'm asking if the wave functions in the particles around us could collapse in such a way that they could absorb light, or even change the composition of atoms?

rah ,

I'm asking if the wave functions in the particles around us could collapse in such a way that they could absorb light, or even change the composition of atoms?

Your question doesn't make sense.

goddard_guryon ,
@goddard_guryon@sopuli.xyz avatar

Since you're seeking for answers within physics buzzwords, you're missing a lot of nuance which is causing you to come up with nonsensical theories. For one, the wavefunction doesn't exist 'in' the particle, it is the particle. A wavefunction collapsing is what causes a particle to show up in a specific location (going by the most prominent interpretation of the wavefunction); as long as the wavefunction is non-zero at more than one location, the particle exists in all those locations.

Equipped with this knowledge, phrases like "a wavefunction collapsing in such a way that it absorbs light" or "change the composition of atoms" make no sense, so I'd suggest you to rethink your assumptions, and, if possible, not look at quantum mechanics as a magic black box that can explain everything a mind can conjure up.

Apytele , (edited ) in A question for the Physics communities

Not sure how math/logic factors into this for you but the impossibility of proving a negative seems to apply here. It's one of the basic bits of logic I teach patients (at least when they ask about reality testing, which is rare). I tell them it's pretty near impossible to prove something doesn't exist or didn't happen, and that I find the best thing is to focus on what was most likely. It's very rare I don't find a very mundane reason for pretty much everything, and the few things I can't there's pretty much nothing I can do about anyway.

GardenVarietyAnxiety OP , (edited )

I'm not trying to prove that something doesn't exist. I'm asking if we follow the scientific method, does our current understanding of quantum physics allow for phenomena like this to potentially exist in reality?

nooneescapesthelaw ,

This is more of an "is it possible?" type of thing more than it is proving a negative.

For example is it possible for a human to grow 200 feet tall? The answer is no (im not a biologist but probably not) and then you can justify it with science

tobogganablaze , in A question for the Physics communities

The scientific method can't rule out the existance of supernatural stuff like gods or magic. And you can totally explain a black portal (or literally anything you want) with magic or the actions of a god.

GardenVarietyAnxiety OP ,

Can they be explained by quantum states being in an incredibly unlikely but not impossible state?

tobogganablaze ,

Is it really an explanation if it requires something so incredibly unlikely?

I think you will have a much better chance for finding an explanation by looking into optical illusions or hallucinations.

GardenVarietyAnxiety OP ,

Is it really an explanation if it requires something so incredibly unlikely?

Yeah, technically

rah ,
Transcendant , in Why You Can Hear the Temperature of Water

Ahhhh fascinating.

For years, I've been adamant that when I stir a cup of hot tea or coffee, the pitch of the scraping spoon almost imperceptibly shifts, and assumed it was because of the gradual slight cooling of the water. Nobody else could seem to hear what I heard.

Wasn't sure if it was my music producer ears or imagination.

lolrightythen ,

Pouring a cup of hot water for tea def sounds different

makeshiftreaper , in Why You Can Hear the Temperature of Water

Here's a Tom Scott video instead of a paywalled article

Alice ,
@Alice@hilariouschaos.com avatar

Removed

justabaldguy , in Why You Can Hear the Temperature of Water

Always wondered about this. Article is pay-walled though.

HEXN3T ,
@HEXN3T@lemmy.blahaj.zone avatar

Another commenter posted a Tom Scott/Steve Mould video with the same subject. In case you haven't seen it already.

Revan343 ,

TL;DR the difference in density at different temperatures changes the sound

akwd169 , in DIY Paul Ion (Particle) Trap [oc]

identical to the real thing

As in the ion trap used in a mass spectrometer, for example?

That's super cool! Thanks for sharing and explaining in such detail

nik282000 OP ,
@nik282000@lemmy.ca avatar

Yeah, this is very similar to what is used in some types of mass spectrometers. In my case it sorts dust by its mass/charge ratio.

umbrella , in DIY Paul Ion (Particle) Trap [oc]
@umbrella@lemmy.ml avatar

this looks very scifi

nik282000 OP ,
@nik282000@lemmy.ca avatar

That's why I built it. I though it was so weird to see something so Star Trek that is actually the basis of a scientific instrument.

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