Forgot your password?   Comment: Sounds like purest balderdash
(Score 1) 44  by Ancient_Hacker (#45704729) Attached to:
Graphene-based Nanoantennas Could Allow WLANs of Nanodevices
The physics of antennas is pretty darn basic electrodynamics.
You need a quarter to half a wavelength to make an efficient
antenna. Scientists and engineers have tried for well over a
century to overcome that limitation, with not much success. It's
pretty basic-- if you want to set up an EM field, you need to be
able to have charges separated by a goodly amount relative to
the wavelength. The emitting material is irrelevant, in fact you
need a really good conductor as you make the antenna shorter, as
it's radiation resistance goes way down with length. Gaphene not
only does not seem to have any advantage, it's high resistance
is a big disadvantage. Sounds super highly fishy.  Comment:
Really, really, really ridiculous. (Score 1) 176  Cmon,
converting electric power to radio frequency AC is at best 80%
efficient, and coupling it ma