When a voltage is applied across two beamlike electrodes made of aluminium, which are separated by a gap of around 50 nanometres, charge builds up on each, creating an attractive force between them, until a critical point is reached.

两个柱状的铝电极间隔约50纳米，当电压加在这两个电极之间时，它们就会相互通电，在二者之间会形成一股引力，直至达到一个临界点。