Objects change size when heated or cooled
See yourself as others see you.
These pendulums trade swings back and forth.
By taking advantage of resonance, you can cause two pendulums to swing in identical cycles.
Why your phone calls don't leak out of optical fibers.
When a piece of iron gets too hot, it is no longer attracted to a magnet.
This cylindrical mirror lets you see yourself as others see you.
What happens when you get off the merry-go-round?
Make an object sink or float with a simple squeeze.
Push me a grape.
Light can bend around edges.
The dipping bird seems to go forever but it's not perpetual motion!
If you want to stay hidden, you'd better stay still.
You can make glass objects disappear.
Two cylinders that look the same may roll down a hill at different rates.
A pendulum moving in two directions creates beautiful designs.
