Engine Oil
See also:
Why Safety Belts Work
When you ride in or on anything, you go as fast
as it goes.
Take the simplest vehicle. Suppose it is just a
seat on wheels.
Put someone on it.
Get it up to speed. Then stop the vehicle.
...
Safety Chains
Always attach chains between the
vehicle and the trailer. Cross the
safety chains under the tongue of
the trailer to help prevent the tongue
from contacting the road if it
becomes separated ...
End a Call
Push . System responds: “Call
ended.” ...
