wheels

Because there is little friction between steel wheels and rail, it doesn’t take much force to transport 30-ton trailers on level tracks.

The sobriety of “Robin Hood” does not render it less than entertaining, just slow to engage its wooden wheels in the muddy ruts of a well-known medieval tale.

The Field Machine was gigantic, like a house on wheels.

And as the company ramps up, Musk said Tesla could shorten the time it keeps safety drivers in the car to “maybe three months” before taking off the training wheels.

Why then, do the wheels seem to be coming off before things have got going?