Category Archives: 1. How has understanding about the physical world changed?

Heisenberg’s Uncertainty Principle – the single slit video

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The ultimate speed = c! Relativistic momentum and energy

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Muons and Einstein video

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Why do moving clocks run slow? (video)

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Veritasium – The world in UV

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Professor Dave Explains: Bohr Model of the Hydrogen Atom

Why don’t protons and electrons just slam into each other and explode? Why do different elements emit light of different colors? Niels Bohr knew why. And now you will too!

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Professor Dave Explains: Wave-Particle Duality and the Photoelectric Effect

Look, up in the sky, it’s a particle! It’s a wave! Actually it’s both. It’s light! How do we know about this stuff? Well, because of Einstein for one. He did more than E = mc^2, you know. But don’t … Continue reading

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Muon decay

How can the decay of muons produced in the Earth’s upper atmosphere provide evidence for the Special Theory of Relativity?

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Fermilab: Relativity series with Dr Don Lincoln

What is relativity all about? Relativistic velocity: When 1 + 1 = 1 Why can’t you go faster than light? Relativity: how people get time dilation wrong Relativity’s key concept: Lorentz gamma Einstein’s clocks Twin paradox: the real explanation Length … Continue reading

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Breakthrough Junior Challenge: Some Cool Ways of Looking at the Special Theory of Relativity

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