24 January 2022

Red + Green = Yellow

 Physics is watching the surprise on students faces when you mix red and green light and get yellow ... and they won't believe you saying it is a trick. These are A level students. #iteachphysics




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Why Internal Resistance Confuses Everyone (And How to Actually Understand It)

  Why Internal Resistance Confuses Everyone (And How to Actually Understand It) “Your battery says 9V… so why does your circuit only get 7.8...