You're right; sound wouldn't work very well. It's very hard to concentrate in a narrow beam and insulate against. A sound beam powerful enough to power a light bulb would deafen you. Try microwaves. Or a light beam and photovoltaic panel. But then,using a light beam to make a bulb light up is quite interesting, but what's the point? So microwaves are the answer.
2006-09-18 22:33:09
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answer #1
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answered by zee_prime 6
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Yeah thats simple.
Go to any science hobby shop, & get a model of clap switch which would not cost more than 5$.
If u clap once, bulb will glow, if u clap twice bulb will shut off.
If u have some experience in electronics circuits, then u can search for CLAP SWITCH circuit diagram on GOOGLE.
I bet that this would be the cheapest & the best option.
2006-09-19 08:15:22
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answer #2
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answered by I am what I am 1
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place a solar cell wired to the light bulb.
from a distance shine a controlled source of light,
vary the intensity of the light.
or place a windmill wired to the light bulb
control how much wind blows on the windmill
blah, blah,blah
2006-09-19 05:52:06
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answer #3
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answered by 987654321abc 5
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I'm hopping u have asked this question 2 crack the INDUSTRIAL DEFINED PROBLEM IN IIT SHAASTRA........ there are some methods indeed..... U can use a strong magnetic field to transfer power; just like in a transformer.....ther is another simpler method too....... but guess what??? I'm also preparing for the same.......!!!! See you there....
2006-09-19 14:34:51
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answer #4
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answered by Anonymous
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If you are talking about power transfer you may want to use some sort of led setup.
I am assuming this is for a science project.
2006-09-19 04:56:02
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answer #5
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answered by Anonymous
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Nicola Tesla lit up bulbs which were not connected to wires or cables - but don't try this at home, kids!
2006-09-19 04:55:26
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answer #6
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answered by Anonymous
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My dear,
better you can use Infra red module to switch onthe bulb.theworking principle os same as TV Remote
2006-09-19 04:53:15
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answer #7
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answered by Anonymous
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infinite power or telekinetic?
2006-09-19 04:54:32
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answer #8
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answered by fakemoonlandings 5
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