Timeline for How come waves and particles can have energy without having mass?
Current License: CC BY-SA 3.0
8 events
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| Mar 26, 2017 at 1:39 | comment | added | dmckee --- ex-moderator kitten | @David At the macroscopic scale the Japanese deployed a test-scale light sail on a recent Venus probe. It saved them more than a km/s in delta V. At an intermediate scale the interaction between electromagnetic waves and the free electron in an antenna is how radios work. Then at the atomic scale Salvatore's example of the Drude model was what I was reaching for as well. | |
| Mar 25, 2017 at 11:00 | review | Suggested edits | |||
| Mar 25, 2017 at 12:26 | |||||
| Mar 24, 2017 at 22:01 | comment | added | knzhou | @DavidRicherby If you accept that EM waves can exert forces on matter, then it's literally just $F = ma$. It's just that the $a$ typically oscillates very fast. | |
| Mar 24, 2017 at 15:52 | history | edited | Salvatore Baldino | CC BY-SA 3.0 |
deleted 1 character in body
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| Mar 24, 2017 at 15:18 | history | edited | Salvatore Baldino | CC BY-SA 3.0 |
I added an example at the end of the question.
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| Mar 24, 2017 at 15:01 | comment | added | Salvatore Baldino | I will edit the answer to give you another kind of example and way to see it. | |
| Mar 24, 2017 at 13:41 | comment | added | David Richerby | Obviously, I accept that EM waves interact with matter, since I'd be unable to see if they didn't. But I can't think of an everyday example of EM waves accelerating an object. Am I missing something obvious? | |
| Mar 24, 2017 at 10:41 | history | answered | Salvatore Baldino | CC BY-SA 3.0 |