Next Week: Schroedinger's Cat

You might think of it as a way to test the proposition that two things cannot occupy the same space at the same time.

First he took everything out of the sideboard. There was purpose and careful planning in his every action. He did not toss things out onto the floor: he stacked them, in line, in order, along the edge of the table.

Then he crawled into the cupboard, just to see if he fit. He did.

More than that, he wondered what it was like for groceries to sit in darkness the whole day. By fingertip, he managed to swing the door shut hard enough to shut himself in. He was satisfied. He stayed there. Until we did our part and asked each other, "Where's Jao? Where did Jao go?"

And that demonstrated something else: science can be fun as well as informative.

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