3 ms·
Actually, they are existing in prototype stage. EDIT: They exists since the 1970s on closed tracks. I remember during my work in 1990s at DASA (Daimler Chrysle
by PinguTS 4y ago
Actually, they are existing in prototype stage.
EDIT: They exists since the 1970s on closed tracks. I remember during my work in 1990s at DASA (Daimler Chrysler Areo Space) they had them on the airfield in Friedrichshafen.
- manholio 4y agoBy that standard, my cat is a truck driver because she can ride the Roomba.