227 reputation
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age 37
visits member for 3 years, 4 months
seen Jul 12 at 1:42

Dec
10
awarded  Popular Question
Sep
24
awarded  Yearling
Aug
25
accepted What is the source of Earth's magnetic field?
Aug
24
comment What is the source of Earth's magnetic field?
The seed field might be the magnetic field of the sun but what we have today is that the magnetic field of earth cancels that of the sun in a way to protect the us from the solar wind. So I do not know how the induced field cancels the originating seed field and still sustain itself.
Aug
24
asked What is the source of Earth's magnetic field?
Jun
17
comment How “How to See Without Your Glasses” works?
I think this works with short-sightedness only, right?
Jun
16
awarded  Quorum
Jun
14
accepted Is Palladium an exception?
Jun
14
comment Is Palladium an exception?
It's the first time I know that the n+ℓ is a rule of thumb. It's the first time I know it has a name also :D . The wiki article is good too. Thank you very much @Qmechanic and @qftme. Shouldn't the comment be converted to an answer to be accepted and handled properly.
Jun
13
comment Is Palladium an exception?
Thank you very much @qftme. Actually the table in the "Orbital Energy" section in the wiki page says that the energy of 5s is 9 and the energy of 4d is 10. AFAIK the electrons fill up sub-shells from low to high energy. Also the section named "Electron placement and the periodic table" says that 5s is before 4d. This is also what I have been taught. This is still confusing to me. What am I missing ?
Jun
13
asked Is Palladium an exception?
Jun
12
comment Can a planet cover the whole sky as seen from its satellite
@Omega , In this case the thick atmosphere @qftme proposed might do the trick and make the planet cover the whole sky view.
Jun
12
awarded  Scholar
Jun
12
awarded  Supporter
Jun
12
accepted Will the night sky eventually be bright?
Jun
12
comment Will the night sky eventually be bright?
Thank you very much @Ted. I still have some points that are not clear to me in your answer. My knowledge in physics is basic so it will be very nice of you to clear them out to me. If we mean by "Horizon" the edge of our observable space, this implies that it expands with speed of light (I mean our horizon radius where we are the center gains 3*10^8 Km every second). How could the universe expansion beats that? Doesn't this contradicts theory of relativity? You mentioned in your first paragraph that this is have no clear meaning but I do not understand why.
Jun
12
comment Can a planet cover the whole sky as seen from its satellite
@qftme Can the satellite keep its thick atmosphere when under the gravity of the near very large planet?
Jun
12
awarded  Student
Jun
11
asked Will the night sky eventually be bright?
Apr
22
awarded  Autobiographer