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 Yearling
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Dec
8
suggested approved edit on Interaction of external light or matter and an Alcubierre warp bubble
Nov
9
awarded  Yearling
Nov
3
comment Can extra-solar gamma rays reach the Earth's surface?
The source states that the the window for indirect observations is 100 GeV to 50 TeV.
Nov
3
accepted Can extra-solar gamma rays reach the Earth's surface?
Nov
3
comment Can extra-solar gamma rays reach the Earth's surface?
Access to the book worked when I tried it today. From page 13: "The earth's atmosphere effectively blocks all electromagnetic radiation of energies greater than 10 eV. The total vertical thickness of atmosphere above sea level is 1030 g cm-2, and since the radiation length is 37.1 g cm-2, this amounts to more than 28 radiation lengths. This is true up to the energy of the highest known cosmic rays (some of which may be gamma rays)." This, I think, answers my question conclusively. May be included in the answer.
Nov
3
revised Can extra-solar gamma rays reach the Earth's surface?
Made the image inline. Applied some formatting to emphasise that there *might* be a window beyond the highest energy shown.
Oct
26
revised Where does the extra force generated by a lever come from?
Copy edited.
Oct
26
suggested approved edit on Where does the extra force generated by a lever come from?
Sep
25
revised Frames of reference: Inertial and accelerated - and jerked, snapped, crackled and popped?
Copy edited (e.g. ref <http://english.stackexchange.com/questions/2429>, but the term for a broader audience would not be accepted).
Sep
25
comment Frames of reference: Inertial and accelerated - and jerked, snapped, crackled and popped?
Rice crispies??
Sep
25
suggested approved edit on Frames of reference: Inertial and accelerated - and jerked, snapped, crackled and popped?
Sep
4
revised What does electroweak vacuum lifetime refer to?
Copy edited.
Sep
4
revised How can bubble universes collide in eternal inflation?
Copy edited.
Sep
4
revised How fast is a true vacuum bubble going to expand?
Copy edited.
Sep
4
revised Explanation of NMOS processes
Copy edited.
Sep
3
suggested approved edit on Explanation of NMOS processes
Sep
3
suggested approved edit on How can bubble universes collide in eternal inflation?
Sep
3
suggested approved edit on How fast is a true vacuum bubble going to expand?
Sep
3
suggested approved edit on What does electroweak vacuum lifetime refer to?
Aug
25
awarded  Popular Question