Imperfect alignment can lead to interesting patterns.
Air trapped between two pieces of clear plastic produces rainbow-colored interference patterns.
Get Bach to the fundamentals.
Play songs by banging a PVC pipe against your palm.
Build a pinhole camera you can really get into.
When you hold a seashell to your ear, you can hear a steady roar.
Explore light and color from a hole new angle.
Enlarge your perspective on color.
With polarized light, you can make a stained glass window without glass.
Demonstrate how different objects vibrate at different frequencies.
Explore resonance to discover how objects vibrate at certain frequencies.
Explore the twinkling of stars by beaming a laser pointer over a hot plate.
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