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Oct
12
awarded  Excavator
Oct
12
revised Do alternate theories for Dark Matter (like MOND) explain its effect on gravitational lensing?
it's -> its
Oct
12
suggested approved edit on Do alternate theories for Dark Matter (like MOND) explain its effect on gravitational lensing?
Sep
28
comment If action equals reaction, how is it ever possible to win in martial arts?
I'm definitely no expert on martial arts, but it seems to me that at least part of the answer should involve balance — if you knock me sufficiently off balance, not only will I feel the force of your blow on me, but shortly afterwards I might be feeling the force of the ground rushing up to greet me. Even if I manage to refrain from falling, knocking me off balance could then feed back into the ability to hit strategic target points.
Aug
4
revised Why aren't all points on a rolling ball moving?
Improved spelling/grammar and formatting.
Aug
4
suggested approved edit on Why aren't all points on a rolling ball moving?
Aug
4
awarded  Scholar
Aug
4
accepted How can contact binaries persist?
Aug
3
awarded  Student
Aug
3
comment How can contact binaries persist?
Is there any literature that calculates their expected life expectancy? I realize such calculations would require a definition of "contact" which might be somewhat fuzzy in this case, but I don't see that stopping theoretical astrophysicists…
Aug
1
asked How can contact binaries persist?
Jul
16
comment What is the wave in an electron?
Exactly this. From thphys.uni-heidelberg.de/~weigand/QFT1-12-13/SkriptQFT1.pdf: "an electron is the elementary excitation of the electron field"
Jul
14
revised Why do the waters of the different oceans of the world have different ratios of their H and O isotopes?
Fixed the scientific notation and isotope notation, but wish that the math font wasn't bigger than the regular font…
Jul
14
suggested approved edit on Why do the waters of the different oceans of the world have different ratios of their H and O isotopes?
Apr
12
comment Is it possible to counter-act centrifugal force by moving at the same speed in the anti-spin direction?
"neglecting its acceleration due to air friction" - also ignoring frame dragging, the effect of which would be much, much smaller than air friction: einstein.stanford.edu/content/education/lithos/litho-fd.pdf
Jul
19
awarded  Enlightened
Jul
19
awarded  Nice Answer
May
19
awarded  Yearling
Jun
24
comment How viable is reuse of nuclear waste at this point, and what are future prospects?
I'm also confused as to why this was closed. Is it because of the social aspect, or because he's asking more of an engineering question than a physics question? The core question, as I understand it, it "What is the current state-of-the-art in terms of waste handling, and can it be reasonably expected that underground deposition of nuclear waste can be eliminated altogether in the foreseeable future?"
Jun
24
revised Finding Directions using moon
More minor clean up