First, he dips a stretched rubber band into boiling liquid nitrogen.
It instantly freezes stiff — stuck in its stretched shape.
Then, he picks it up with his bare hand…
And as it warms up, it snaps back, moving all by itself.

💡 What’s going on?
• The cold "freezes" the molecular movement — locking in potential energy
• As the rubber warms, molecules regain motion
• That stored energy is released as kinetic energy — the rubber band contracts
• It's a real-time demo of energy transformation

It’s like watching frozen time suddenly rewind — physics-style.

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