Quantum Superposition

Schrödinger's cat, perched on a windowsill in a box, says...

...it's not here, it's not there, it's everywhere and nowhere at the same time.

But don't just take my word for it. Let's run some experiments:

Heisenberg Is My Uncle Quantum Tunnel Effect

Remember, in quantum mechanics, you never really know where anything is until you look at it. But that's not the real mystery...

It's the cat's whiskers.