Light a light bulb with no contact?

AI Thread Summary
It is possible to light a standard light bulb without physical contact through methods like wireless energy transfer or by inducing an electromagnetic field. Experiments have shown that a fluorescent bulb can light up near high tension wires, even if the cathode is burnt out. Japan is exploring wireless energy transfer using orbiting solar panels, currently achieving about 40% efficiency. However, unsafe methods, such as placing a bulb in a microwave, can also result in lighting it up, though this poses significant risks. Overall, while there are theoretical and experimental methods to achieve this, safety concerns are paramount.
BlackKnight
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Hi,

Is it possible to make a standard light bulb light without any physical contact to it (appart from support)?
I seem to remember seeing such an experiment, but can't remember the details.

Thanks
 
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Not that I recommend doing this, but if you can find a safe way to suspend a florescent light bulb near a high tension wire you will see it light up, even if the cathode is burnt out.

http://en.wikipedia.org/wiki/Wireless_energy_transfer
 
Japan has an official project to deploy orbiting solar panels and transfer the energy to Earth with lasers. Currently around 40% efficiency they are spending tons of cash on getting that number higher so that it could compete cost wise with more traditional electricity generation.
 
Topher925 said:
Not that I recommend doing this, but if you can find a safe way to suspend a florescent light bulb near a high tension wire you will see it light up, even if the cathode is burnt out.

http://en.wikipedia.org/wiki/Wireless_energy_transfer

Or (I would not recommend it either :D) put the fluorescent bulb in a microwave oven..!
I will light up...although the metal parts might spark or arc off!
(Its dangerous to put metals in a microwave oven. Dont try this, but those who have
tried had demonstrated that they will bulb will light up).
 
If you could induce a electromagnetic field and put it in the field, the light bulb may light up. There is also the other methods mentioned above, although I would not recommend the powerline or the microwave for obvious reasons.
 

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