User:Sadi Carnot/Other

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[edit] Sandboxes

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  • User:Sadi Carnot/Draft1

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  • Hans Christian Ørsted - In 1820, discovered that a compass needle deflects from magnetic north when the electric current from a battery is switched on and off; this convinced him that magnetic fields radiate from all sides of a live wire.
  • André-Marie Ampère - formulated Ampère's law after hearing of Ørsted's discovery