Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-L] our second, at least, moon

This is a better link:

On 2020/Feb/29, at 04:02, John Denker via Phys-l <> wrote:

This story involves some important basic physics, which the
popular press hasn't covered very well.


Here's a somewhat-practical example that involves some
of the same principles: The carnival "swinger game".

The game is essentially unwinnable. Physics says if
the ball misses the pin outbound, it will miss again
inbound. If there were a lot more friction, or if
the pivot supporting the pendulum were moving, then
you would have a chance.

Tossing the ball (so the supporting chain goes
slack) is not allowed.

bc thinks: Wow, so obvious, and he missed it. (no capture).