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Yesterday I visited the Exploratorium, and hung out in front of their giant concave mirror, where things get larger instead of smaller as you walk further from the mirror surface.

What I didn't see before, though, was they have a smaller, similar mirror in front of a heater, and when you wave your hand in front of you, it becomes warmer when it obscures the image of the heater from your point of view.

In hindsight, it's a mundane phenomenon. Heat is light. But what a great demonstration!

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Merveilles

Revel in the marvels of the universe. We are a collective of forward-thinking individuals who strive to better ourselves and our surroundings through constant creation. We express ourselves through music, art, games, and writing. We also put great value in play. A warm welcome to any like-minded people who feel these ideals resonate with them. Check out our Patreon to see our donations.