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Snack name |
Description |
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Suspend a ball in a stream of air. |
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Does it matter which end is up? |
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Suspend an object in air by blowing down on it. |
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A bicycle wheel acts like a giant gyroscope. |
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Polarized light reveals stress patterns in clear plastic |
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How to balance a checkbook using the physics method. |
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Squeezing a plastic bottle filled with water and a condiment packet makes the packet sink. Letting go of the bottle makes the packet rise. |
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These pendulums trade swings back and forth. |
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By taking advantage of resonance, you can cause two pendulums to swing in identical cycles. |
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To paraphrase the French philosopher René Descartes: "I sink, therefore I am." |
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Two cylinders that look the same may roll down a hill at different rates. |
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A pendulum moving in two directions creates beautiful designs. |
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Prove to yourself that Galileo was right! |
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This is a sieve that sorts objects by size. Its screens act as boundaries, allowing objects that are small enough to pass through and preventing the passage of objects that are too large. |
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Experiment with cardboard tubes of different lengths to see how far you can blow a marshmallow. |
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How ice skaters, divers, and gymnasts get themselves spinning and twisting faster. |
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Big swings from little pulls grow. |
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One reason not all buildings are equal in an earthquake. |
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If you vibrate something at just the right frequency, you can get a big reaction. |
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Create graceful loops and spirals by drawing on a spinning dish. |
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A spinning rod with a mark near one end is set rotating and spinning at the same time. Amidst the blur of the spinning cylinder, the mark appears three times, forming a stationary triangle. |
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How does this stack up? |
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By measuring the amount of surface each tire presses onto the ground and the pressure inside each tire, you can calculate the weight of a car. |
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A bob, or mass, hangs from a string attached to the front of the walking men. Watch as the string almost draws the vectors that make the toy work. |
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Rotating water has a curved surface. |
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Go ahead - hit it hard! |