A thereminist and his theremin – an almost century-old musical instrument, a box with two antennas.
However, two tuners and two antennas usually have to be installed in the car.
This one had the wrong wheel covers and two antennas sticking out the back.
The device will also have two antennas, compared to the iPad and other tablets which have one, he says.
The iPad Air also sports two antennas to pull in Wi-Fi signals faster than the old one did.
The 4S now can switch between the two antennas to transmit and receive, for better call quality.
Two antennas (one vertical, one horizontal) emerge from a wooden box that contains a pair of tone-producing oscillators.
In the instrument landing system (ILS), used to help aircraft approach and land on an airfield, the two antennas transmit waves about 10 feet (3 metres) long.
Ms. Kurstin is accomplished on the theremin, the electronic instrument invented in 1920 and played by subtly manipulating the currents between two antennas.
In 1962, he built a theremin, an early electronic instrument with two antennas played by waving one's hands in front of it.
In fact, this is on a par with the latest version of 3G, which uses two antennas in a phone to double the usual speed.
