Popcorn

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 381.6 Hz, 47 cents flat of G4. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to pop more kernels up out of the bucket. Hands-on: pull the rim over to tip the bucket.

Popcorn is a kind of corn whose kernels puff up when they are heated. Each kernel has a hard shell with a little water inside. When it gets hot, the water turns to steam, the pressure builds until the shell bursts with a pop, and the soft starch inside puffs out into a white, crunchy foam.

Tap it and fresh kernels pop up out of the striped bucket, tumble and land on the heap. People in the Americas were popping corn thousands of years ago, long before movie theaters. With ✋ Hands-on on, pull the bucket's rim over and it tips on its bottom edge: the loose kernels on top spill out over the rim one after another and bounce on the table; reset stands it up again.

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