Where does this come from, and can I check it?

Contact between different surfaces can pull electrons from one material to the other. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a science fact?

Yes. It sits on the Science shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

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The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Rubbing materials transfers electric charge

Contact between different surfaces can pull electrons from one material to the other When two insulators touch and separate, electrons may transfer according to how tightly each material holds them. The imbalance leaves one surface positive and the other negative until the charge leaks away or sparks. The word electricity comes from elektron, the Greek name for amber, which shows the effect well. It sits in Mondo's science collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Encyclopaedia Britannica

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Science trivia

More facts like this

Faraday made electricity from a moving magnetA changing magnetic field pushes charges through a coil of wire Franklin invented the lightning rodA metal spike on a roof gives lightning a safe path to the ground Electric eels generate hundreds of voltsStacked cells in the fish's body act like a battery to stun prey Lightning bolts are hotter than the surface of the SunA single electrical strike can heat surrounding air to thirty thousand degrees Celsius Superconductors carry electricity with zero energy lossCooled below a critical temperature certain materials conduct electric current perfectly Piezoelectric materials convert mechanical pressure to electricitySqueezing certain quartz crystals generates electrical voltage across their surfaces

Tags: electricity, charge, history

Rubbing materials transfers electric charge: the short answers

Where does this come from, and can I check it?: Contact between different surfaces can pull electrons from one material to the other. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a science fact?: Yes. It sits on the Science shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.