SUBMARINERS in the US Navy will soon be able to surf the Web from deep under
the ocean. Their secret? A clever floating antenna that can transmit and receive
radio signals, even when waves wash over it.
Submarines already use floating cables for radio communication but they work
at very low frequencies, sending voice and data signals at rates far slower than
a domestic dial-up modem. To transmit lots of information, subs have to surface
to contact satellites, ships, aircraft or ground forces—and so risk
detection by an enemy.
What you really need is a way to allow the…
