physical toys: Levitating pyrolytic graphite over four neodymium magnets (quadrupole) Nice beta type Stirling engine running with the heat of your hand Looks like a normal gyro - but.... it's unstable - precession becomes "stronger" and at the end it flips. As every cryo it conserves the angular momentum => in the "flipped" position it a the same spin direction as in the first picture :-) |
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[ Gebhard Matt ] |
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