|Quoting Newagebird (Thread starter):|
Is anti gravity even theoretically possible?
|Quoting Seanp11 (Reply 4):|
all of our electricity is produced by coal, nuclear, geothermal, hydroelectric, and wind power, nobody will care.
|Quoting Starlionblue (Reply 5):|
Where's solar? Covering the moon with solar panels and beaming the energy back to Earth (somehow) would solve all our energy problems for a while.
|Quoting Seanp11 (Reply 6):|
With solar power, there is no location that gets constant sunlight. The moon experiences longer nights than the earth. The only viable location for constant sunlight would be outside the earth's orbit, and then beaming it down to a fixed location on the earth would pose a problem. A position on the earth would get even less sunlight, thanks to the earth's atmosphere.
Solar power is fine for small applications, but for solving the earth's power problems, in its current state, it is not sufficient.
|Quoting Seanp11 (Reply 8):|
The transmission seems to be the most nagging issue. If it is beamed via e/m, then its either exposed to large amounts of interference by all of the earth's radio communications, or would be of a high enough frequency to do serious damage to people if it strays from the receiver. Then, you will also be converting the e/m back into electricity. The photoelectric effect is not too efficient, so unless the satellite were a mirror, the powerplant would be converting light into electricity, into e/m rays, and back into electricity. A lot of power would be lost in the process.
|Quoting Seanp11 (Reply 10):|
Yeah, that's why I said its not probable in the next 50 years. Fusion is a much more probable solution to our energy needs, besides current conventional sources.
|Quoting Mrocktor (Reply 14):|
Every time this thread turns up I give the same response: in flying energy density is key.