Don Terrill’s Speed-Talk

Just drop them on a hard surface. It may be enough.
Otherwise place them against an operating transformer with one side of the laminations sawed off.

With the proper ramp a car at speed will "fly". There must be a proper ramp for landing to avoid damage. It is only a ballistic trajectory not flight. I did it and consider it foolish although the car suffered no damage. Controlled flight in a "flying car" is not new. Molt Taylor...

It is quite easy: 1. Buy a temperature sensing switch that conducts at your limit temperature. 2. Make a fitting to put the end of the temperature switch into the top radiator hose coolant. 3. connect the switch in series between ground and the ground side of a headlight relay, the other connections...