Season 1 (1972)
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Episodes 7
1
Air pressure
March 1, 1972
• 21m
Per and Gösta experiments with air pressure.
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2
Microscope
March 8, 1972
• 21m
Per and Gösta are looking close on small things.
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7
Center of mass
April 12, 1972
• 21m
Per and Gösta are experimenting with center of mass.
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