Quantum, Relativity & Forces Explained | Pixelated Physics

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Pixel-art Kater's reversible pendulum: a brass bar with two facing cyan knife edges, a lime bob and a violet sliding weight

Kater's Reversible Pendulum: Measuring Gravity ...

How do you measure gravity with a swinging bar when nobody can say exactly how long the bar is? Henry Kater’s 1817 trick: hang it both ways up and tune...

Kater's Reversible Pendulum: Measuring Gravity ...

How do you measure gravity with a swinging bar when nobody can say exactly how long the bar is? Henry Kater’s 1817 trick: hang it both ways up and tune...