2006-11-18 06:12:44 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
Yes. Do a little research. Your teacher will be proud of you. Find all you can about a wizard named Nikola Tesla.
2006-11-18 06:23:24 · answer #1 · answered by JimWV 3 · 2⤊ 0⤋
You can transmit energy as electromagnetic waves and collect that energy with some sort of antenna. That is how we send and receive radio and TV signals. For purposes of power it is just not very efficient. Too much energy is lost in the process. But it can be used where connecting a wire is not possible or practical.
There was a proposal some years back to build a large solar collector in orbit around the earth and transmit the energy as microwaves to giant antennas on the surface. This was thought to be feasible because the energy was "free" so the inefficiency was not as much of a problem. Apart from the expense of building such a space station the project was opposed in part because of fears that such a beam of electromagnetic energy might have adverse health effects on organisms living near the antenna.
2006-11-18 15:42:00 · answer #2 · answered by rethinker 5 · 0⤊ 0⤋
Sure. One experiment to show this is to get a bare fluorescent tube and hold it overhead under high voltage transmission lines (the ones that transfer electrical power long distances, not the lower voltage overhead ones typically near homes). The tube will light up without getting electricity from wires.
There are ways to demonstrate the transfer of electricity by microwaves (see the WWW sites below for examples), but I recommend that you leave these experiments to the professionals.... B-/
2006-11-18 17:57:38 · answer #3 · answered by techyphilosopher2 4 · 1⤊ 0⤋
I think that a battery powered device would probably be the only way to have electric on-the-go. What would stop someone from electrocution if electricity could float through the air like that?
2006-11-18 14:23:19 · answer #4 · answered by brioma33 3 · 0⤊ 0⤋
Induction. On May 4th I was electrocuted working on a 345kV line which was "deenergized". The 155 kV line which ran by it energized the 345KV line via induction. I lived but will never forget what happened. Some rechargeable appliances use the concept of charging in this manner.
2006-11-18 14:26:03 · answer #5 · answered by Fred M 2 · 0⤊ 0⤋
Yes
2006-11-18 14:21:17 · answer #6 · answered by M.R.Palaniappa 2 · 0⤊ 0⤋
Yes, with Lasers. Some students in the optics department at my university are working on this right now.
2006-11-18 17:39:00 · answer #7 · answered by Anonymous · 0⤊ 0⤋
yes and no...it has been thought of and MIT claims to have done it but, to the best of my knowledge, is not commercially available
2006-11-18 14:22:03 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Sure. Look at lightning... or static... the wires do make it a bit safer, i think...
2006-11-18 14:21:52 · answer #9 · answered by brokesoberangry 2 · 0⤊ 0⤋
yes I have heard it is done in new home constructuion now but I am not sure how they do it!
2006-11-18 14:14:48 · answer #10 · answered by simichka 2 · 0⤊ 0⤋