Red Blood Cell

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 285.1 Hz, 51 cents flat of D4, the nearest tine on the comb. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to curl it into a sickle shape and back.

Red blood cells carry oxygen from the lungs to every part of the body. Each is a soft disc, dented in on both sides, that bends to squeeze through the tiniest blood vessels. A mature human red blood cell has no nucleus and is packed with hemoglobin, the red protein that holds the oxygen.

Tap it and it sickles: it stretches and curls into a stiff crescent, then relaxes back into a disc. This happens in sickle cell disease, where a change in the hemoglobin makes cells stiffen when oxygen is low. The body makes millions of new red blood cells every second.

Made in Splashery. Its code is MIT.

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