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Results tagged with electromagnetism
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user 927
The classical theory of electric and magnetic fields, both in the static and dynamic case. It also covers general questions about magnets, electric attraction/repulsion, etc. Distinct from electrical-engineering.
0
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1
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Are normal light waves more dangerous than WiFi radiation? [closed]
I'm getting sort of tired of all the "wireless hysteria", so I thought this might be a nice comment.
To the extent of my knowledge, WiFi uses microwaves, which have a lower frequency and hence carry …
- 1,432
2
votes
5
answers
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Is there a more scientific term for "obstruction of EM waves"?
When EM waves pass through things like rain and hail, they can be "obstructed" and bounced back or absorbed, rather than passing through.
I'm conducting an experiment on this effect, and wondered if …
- 1,432
4
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1
answer
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Does weather obstruct microwaves and radiowaves?
I read an article ('How airplanes use radar' at Bright Hub.com) that stated that airplanes use radio waves for communication because they aren't obstructed by weather.
Is this true?
- 1,432
6
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2
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Why isn't data lost when sent over large distances?
I was thinking about how information is sent, for example through the atmosphere. There are plenty of obstacles, as well diffraction, etc.
Still, no information is lost. How is information sent to a …
- 1,432