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Jan
25
comment Finding the velocity of a particle
Possible duplicate of Relativistic speed/energy relation. Is this correct?
Nov
7
comment Why are simulated qubits less effective?
Simple answer: because we do, there is a dozens of dozens of quantum architecture and algorithms simulation.
Oct
19
comment Is there $\frac{1}{f^{0.5}}$ noise?
And what you mean by "exist" in this case? You can generate $1/f^3$ noise, but everything with exponent larger than 2 is named "black noise" and defined almost as a silence (with zero power density with a few random spikes allowed).
Oct
5
comment How do I found the Kinetic Energy of a mass being lifted?
May you be talking about the potential energy instead? Then it will have some sense.
Jul
18
comment Naked singularity: how would it behave?
Related: Rotating black holes and naked singularity
Jul
13
comment Forces and the light
The actual Newton's first law is $\mathbf{F} = \frac{\mathrm{d}\mathbf{p}}{\mathrm{d}t}$. Thus any you further questions and ideas are completely meaningless.
Jun
29
comment Why do atomic clocks only use caesium?
@EmilioPisanty That's a nice question, but otherwise than "it's stable, it's ubiquitous, it's historical" I can't found any nice explanation on this.
Jun
22
comment Feynman Lectures: Why a non-reversible weight lifting machine cannot lift higher that a reversible one?
Just for reference link to a book for this chapter: Feynman Lectures.
Apr
18
comment Which one is colder? Zero temperature ice or zero temperature water?
Also, are you talking about temperature in some energy sense?
Apr
7
comment 2s orbital wavefunction has non-zero probability at $r=0$?
Why not? Especially the marked answer is a clear explanation that the probability isn't just a wavefunction at zero. You forget the volume, which a proportianal to $r^2$, so multiplying by zero is zero. And notice that the plot you added thave $4\pi r^2 R^2_{nl}$, and not just a wavefunction.
Apr
7
comment 2s orbital wavefunction has non-zero probability at $r=0$?
possible duplicate of Hydrogen radial wave function infinity at r=0
Apr
4
comment What is the significance of the “squared” in $E =mc^2$?
You forget some }s.
Apr
4
comment What is the significance of the “squared” in $E =mc^2$?
possible duplicate of Einstein's mass-energy equivalence
Mar
29
comment Why do lines in atomic spectra have thickness? (Bohr's Model)
Talking about Bohr model: I don't think it's explain it at all; in modern theories the thickness of absorption/emitting lines due to the uncertainty principle (the one about time-energy). And this was discovered far later than the Bohr model.
Nov
14
comment How would the representation of a circle in 4 dimensions?
Too short for answer: it's a hyper sphere! Or 3-sphere! Or glome! Also, the tags are mind-blowing.
Aug
21
comment Is there a quantity measured in kilogram seconds?
$\mathrm{kg}\cdot\mathrm{s}$ or $\frac{\mathrm{kg}}{\mathrm{s}}$? Anyway, it doesn't necessary to all combination have some interpretation.
Aug
9
comment Understanding the four fundamental forces of the standard model - are they magic
Clarke's Third Law: Any sufficiently advanced technology is indistinguishable from magic.
Jul
17
comment Can a web community write papers?
Yes, one of the most notable example I know: HoTT book. But it is underpopular now, as it should be.
Apr
16
comment Why do we see laser beams?
Thanks! There is also a Boom-Boom in Star Wars, so... the sci-fi isn't give much help in learning physics.
Apr
16
comment Why do we see laser beams?
So, in vacuum with a few particles in a unit of volume the laser beam would be almost invisible? (haven't found any photos of laser beam in space)