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'Universe' on ScienceLibrary.info covers astronomy, cosmology, and space exploration. Learn Science with ScienceLibrary.info.
A demonstrator charges a rod negatively and brings it close to the top plate of an electroscope. The foil rises. He now touches the top plate with his finger and the foil falls down. He removes his finger and then takes away the rod. What happens?
Go to the article about: Electrostatics
The real bottomline of economy is photosynthesis.
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