Checking a computer - controlled bicycle driveline by means of an infrared camera, engineers at Johns Hopkins University in Baltimore noted that little heat was generated as the chain moved.
Ar infrasarkano kameru filmējot datora kontrolētu velosipēda spēka pārvadu, Džonsa Hopkinsa universitātes (ASV, Baltimora) inženieri konstatēja, ka, ķēdei kustoties, rodas ļoti maz siltuma.