By levitating nanoparticles with laser beams, scientists have built an antenna 10,000 times smaller than typical ...

First, why in this day and age of wireless-everything boxes is there not a box that just takes a TV antenna signal and wirelessly beams it to a receiver connected to your TV? Often, the location ...

In particular, how do active GPS antennas get power down the same wire that they use to send signal to the receiver? Wonder not, because [Tom Verbeure] gifts us a post detailing a mod letting a ...

He set up a specially designed wireless receiver in Newfoundland, Canada, using a coherer (a glass tube filled with iron filings) to conduct radio waves, and balloons to lift the antenna as high ...