All Questions
3
questions
-1
votes
2
answers
35
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How can I send a wave towards something and have it respond with a specific value?
Imagine a bat, for example. It uses its echo-location to send waves which get reflected back and thus return information about the surroundings. I want to do the same thing, but instead of just ...
- 1,183
1
vote
1
answer
2k
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What is the difference between collimating, waveguiding, attenuating, and polarizing? [closed]
What's the difference between collimating, waveguiding, attenuating, and polarizing? Are they related on any level at all?
- 472
1
vote
3
answers
7k
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Do electromagnetic waves produce sound?
Preamble:
At 5 AM in the morning, if I sit quietly and listen attentively, I can hear many different noises, on a very high frequency. If I try to isolate the ones that are less noisy, I can clearly ...
- 1,793