v 1.1 - now it is much more realistic, Air pressure and elasticity lower than 1 is added - it does not swing for eternity anymore!
"Newton's Cradle" named after Sir Isaac Newton, is a device that demonstrates "conservation of momentum"
and energy via a series of swinging spheres.
When one on the end is lifted and released, it strikes the stationary spheres, an impulse force is transmitted through the stationary spheres
and pushes the last one upward.
The device is also known as "Newton's Balls" or "Executive Ball Clicker"
Also try to swing several balls together, per the drag-tool! Have Phun!
And yes the background image is a real photo from the hubble telescope, its the called "Orion Nebula" and it's in true colors.
