1,881 reputation
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bio website skepsi.me
location
age 23
visits member for 4 years, 4 months
seen Aug 19 at 23:49

SOreadytohelp


Jun
7
comment How large is the universe?
@Spencer: What I'm specifically wondering is how the faster-than-light expansion of the universe can be reconciled with Special Relativity. @dagorym tried answering partially. What I'd like to know is does Special Relativity apply in this instance and, if not, why not?
Jun
7
accepted Why are there more lunar maria on the near side than on the far side?
Jun
6
asked How large is the universe?
Jun
6
asked What is meant when it is said that the universe is homogeneous and isotropic?
Jun
6
comment Why are there more lunar maria on the near side than on the far side?
@Carson: Actually, I think community wiki for questions doesn't exist anymore. I remember someone stating that it was removed, and, anyway, I don't see an option for it. I'm not sure why, though.
Jun
6
comment What is the probability that a star of a given spectral type will have planets?
Perhaps it would be more correct to say that "all stars end up having some left over material that might form planets."
Jun
6
comment What is the probability that a star of a given spectral type will have planets?
"...since these are often dead F, G, and K stars." Do you have a reference for that? I have never heard that before. F and G stars end up being white dwarfs, do they not? And late K stars are red dwarfs.
Jun
6
accepted How many stars are in the Milky Way galaxy, and how can we determine this?
Jun
5
asked Why are there more lunar maria on the near side than on the far side?
Jun
5
asked How many stars are in the Milky Way galaxy, and how can we determine this?
Jun
4
comment When will the Moon reach escape velocity?
@Mr. Disappointment: Reach equilibrium in what sense? If the moon's acceleration is to cease (per the standard theory), then the earth's rotation rate will also stop slowing down. That will happen when both bodies become locked to each other, showing the same side at all times. The Pluto-Charon binary system is a good example of this. If that's what you meant, then yes they will reach equilibrium.
Jun
3
comment How are Cepheids used to evaluate their distance?
This reference (pages 11 and 12) that I found states that Zhevakin's discovery was published in 1953 (in Russian).
Jun
3
answered What criteria were used to set the “useme” flag in the NOMAD astrometric catalog?
Jun
2
answered When will the Moon reach escape velocity?
Jun
2
accepted Recommended progression with which to learn physics for fun
Jun
2
answered Why can we see the cosmic microwave background (CMB)?
Jun
1
comment Why don't more rocky planets/moons have appreciable atmospheres?
Titan's atmosphere is huge, yet it is smaller than Ganymede, which has the highest mass of any moon. Why doesn't Ganymede have an appreciable atmosphere?
Jun
1
answered Which is the strongest meteor shower expected in the next years in the Northern hemisphere?
Jun
1
comment What nonlinear deformations will a fast rotating planet exhibit?
@Zassounotsukushi: One thing to note is that the diagram of the dumbbell shape formation is based on the idea that there are two axes of rotation. A rapidly rotating planet has only one axis of rotation.
Jun
1
comment Recommended progression with which to learn physics for fun
Ah, thank you, that sounds highly interesting. I will most definitely take a look at that. From your description, it seems like the physics portion of the book start somewhat mid-level and doesn't cover Newtonian mechanics, or nuclear physics, etc. If that is the case, then I would probably use a more general-purpose book at first before jumping into this. In general, though, it sounds like a highly enjoyable read.