Researchers led by Alex Zetttl at the University of California, Berkeley have crafted a fully working radio from a single carbon nanotube 10,000 times thinner than a human hair.
Carbon nanotubes are man-made microscopic mesh rods composed entirely of carbon atoms.
Fixed between two electrodes, the nanotube vibrates and performs the four critical roles required to receive radio waves: antenna, tunable filter, amplifier and demodulator. Power is supplied by streaming electrons from an attached battery.
Its inventors have already used it to broadcast two songs: "Layla" by Derek and the Dominos and "Good Vibrations" by the Beach Boys.
Later, the researchers were astounded when the tiny radio unexpectedly picked up a short, two-word message - "More Clapton".