When physics students first learn about Newton’s law and momentum, they get the impression that it’s all about mass. If that’s true, how can mass-less light have momentum? It’s because mass isn’t actually required.
Categories: Gr. 11-12 Chemistry, Gr. 11-12 Physics
https://youtu.be/Oo0jm1PPRuo I have been obsessed with measurement for a long time and I'm not sure quite how it happened. The world's roundest object played a role in this. I guess I'm just... read more
Categories: Gr. 11-12 Chemistry, Gr. 11-12 Physics
https://youtu.be/73XdlgzSKws A photon is a purely quantum mechanical object representing the smallest piece of energy (or quanta) for light. Every quantum particle is a packet of energy though, so... read more
Categories: Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
https://www.youtube.com/watch?v=nynfeE4TFtE Globe and Mail Science reporter Ivan Semeniuk describes Canada's contribution to the construction of a new, state of the art telescope in Hawaii that is... read more
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