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  • 11 votes cast
Sep
24
awarded  Autobiographer
Oct
13
comment Is there a travelling speed of for electric field? If yes, what is it?
@RonMaimon, Unless I haven't read the books properly, I believe it is only a few millimeters per second in a copper wire.
Jun
25
comment Is there a travelling speed of for electric field? If yes, what is it?
@ptomato, the electrons (or ions) travel at the speed of a few mm/sec. The electric field's change is felt at the speed of light.
May
9
comment How can I create hindrances to radio waves?
Your answer also seems to answer this question
May
9
comment If both radio waves and gamma rays can travel through walls
"Colin K" seems to have answered a question here, it might be related.
May
6
comment If both radio waves and gamma rays can travel through walls
-1 (if I could) How does this vague remark contribute towards the answer?
Apr
16
awarded  Student
Apr
16
comment Isn't wave particle duality of light actually cheating?
Physicists are unforgiving :-)
Apr
16
awarded  Scholar
Apr
16
comment Isn't wave particle duality of light actually cheating?
+1, awesome explanation!
Apr
16
accepted Isn't wave particle duality of light actually cheating?
Apr
16
awarded  Supporter
Apr
16
comment Isn't wave particle duality of light actually cheating?
+1, Thanks for the answer, and link to your post. Now at least I can hunt around to understand your statement "It’s an excitation of a quantum field.".
Apr
15
asked Isn't wave particle duality of light actually cheating?