The infraredsignal is then transmitted to an infrared receiver on the phone, which then beams it across the mobile phone network to the doctor's computer.
The signal from the electrodes would be processed by the electronic circuitry and converted into an infraredsignal, similar to that used in a TV remote control.
The US space agency observatory is well suited to picking up the infraredsignal expected from cold grains of dust about 10 microns (millionths of a metre) in size.