 history |
 mechanics |
 fluids
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 warmth and thermodynamic |
 sound |
 optics |
 electricity |
 electromagnetics |
A submarine that goes up and down |
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| Arquímedes principle |
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| The lid that does not fall |
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| Nails burst balloons? |
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| The air flattens |
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| Blow and join |
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| The air weighs and weighs a lot |
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| Measure hydrostatic pressure |
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| The water that defies gravity |
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