"Yousuf Khan" wrote in message
...
Androcles wrote:
Other types of racing, such as Formula 1, hardly any flexure there.

You haven't seen F1 drivers have a warm-up lap before the race,
deliberately snaking side-to-side?
Here's a better example. Go outside and feel the tyres on an
ordinary car that has recently been driven for a mile or more.
They'll be warm. They are only flat at the bottom, though.


Yes, but they aren't building heat up in those tires by flexure during
those maneuvers. They are simply loading each side of tires down on the
road. There is a bit of flex, for sure, but the majority of the heat comes
from road friction.

In your dreams. Wheels were invented to eliminate road friction
in the forward direction and retain it laterally.
Here's a very simple experiment and an easy proof:
Get a wire coat hanger or similar steel rod and start flexing it as
rapidly as you can until it breaks. You'll burn your thumbs before
it does.
It doesn't take a scientist to know that happens, any experienced
metal worker is aware of it.
Earth's mantle is hot because the Moon flexes the crust, plate
tectonics is driven by the Moon.