| Topic: |
Science > Physics |
| User: |
"" |
| Date: |
18 Apr 2006 04:17:56 PM |
| Object: |
Television and hairdryer question |
Can anyone explain to me why the following happens:
I turn on my hairdryer, hold it out in front of me and let the hot air
it expels shoot up in front of my television screen (which I switched
on). When I do this I can see lots of very thin black lines, like
noise, on the TV screen intertwined with the normal picture. When I
take the hairdryer away the lines disappear.
What exactly is happening in this situation? I assume it has something
to do with the refraction of light, but am curious to know more.
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| User: "Entropy" |
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| Title: Re: Television and hairdryer question |
18 Apr 2006 08:27:51 PM |
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<game4itguy@gmail.com> wrote in message
news:1145395076.097764.11660@z34g2000cwc.googlegroups.com...
Can anyone explain to me why the following happens:
I turn on my hairdryer, hold it out in front of me and let the hot air
it expels shoot up in front of my television screen (which I switched
on). When I do this I can see lots of very thin black lines, like
noise, on the TV screen intertwined with the normal picture. When I
take the hairdryer away the lines disappear.
What exactly is happening in this situation? I assume it has something
to do with the refraction of light, but am curious to know more.
It's caused by the communtators in the motor of the hair dryer. They gibve
rise to sparks and release energy which interferes.
Tam
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| User: "" |
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| Title: Re: Television and hairdryer question |
20 Apr 2006 12:18:22 PM |
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Interesting stuff, thanks all.
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| User: "" |
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| Title: Re: Television and hairdryer question |
18 Apr 2006 05:55:02 PM |
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wrote:
Can anyone explain to me why the following happens:
I turn on my hairdryer, hold it out in front of me and let the hot air
it expels shoot up in front of my television screen (which I switched
on). When I do this I can see lots of very thin black lines, like
noise, on the TV screen intertwined with the normal picture. When I
take the hairdryer away the lines disappear.
What exactly is happening in this situation? I assume it has something
to do with the refraction of light, but am curious to know more.
Electrical interference.
Try it in front of an AM radio for the audio version.
--
Jim Pennino
Remove .spam.sux to reply.
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