Window contacts that need no wiring or batteries

Window contacts tell us which of a house's windows are open or closed. German researchers have now developed a fail-safe system that is particularly easy to use and needs no wiring or batteries. The sensors harvest the energy they need to run from...

Tyre developments on a roll

Wheel and tyre producers will soon be offering super single SuSi tyres. Thanks to their reduced weight, compared to dual tyres, maximum freight capacity is increased.