Spinning Water

The spinning water takes on a curved shape, which sure looks like a parabola. But why does it do that?

 

Microscopes: How They Work

An explanation of how microscopes work, using a ray tracing diagram.

 

Bare Filament

Why do lightbulbs have the bulb? This video shows what happens if the glass bulb of an incandescent lightbulb is removed and the electicity turned on.

 

Spinning Water

If a tank of water is spun around a vertical axis, the surface of the water takes a curved shape. In this experiment, a thin tank of water is spun at up to 270 revolutions per minute, filmed at both 30 frames per seconds and 300 fps.

I'll add the folloup videos when they become available.

Newton's Cradle with a High-Speed Video Camera

Footage of a Newton's Cradle toy, shot at 300 frames per second.