The Physics Behind Stone Skipping

"What makes a stone bounce repeatedly when thrown across the surface of a lake, and how many bounces can it perform?"
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"What makes a stone bounce repeatedly when thrown across the surface of a lake, and how many bounces can it perform?"
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"The 'Bubble Chamber' program is a simulation of particle collision that runs in your browser window."
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"This is how disconnecting a 500kV line under load looks like."
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"By Ron Fedkiw, Assistant Professor at Stanford Computer Science, whose research areas include computational fluid dynamics and computer graphics"
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A clip showing a cut-out that is built backwards intead of forwards, giving the illusion of movement from a stationary object. Watch the end of the video to see how it is pulled off.
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In 1927 Professor Parnell heated a sample of pitch and poured it into a glass funnel with a sealed stem. Three years were allowed for the pitch to settle, and in 1930 the sealed stem was cut. From that date on the pitch has slowly dripped out of the funnel - so slowly that now, 72 years later, the eighth drop is only just about to fall.
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