Another example of the Human Cell Atlas in action came during the Covid pandemic when the detailed maps of the body allowed ...

Your skeleton supports and protects your body. The skull, for example, protects your brain. Important if you like thinking or moving, since your brain sends the signals that control your muscles.

but taping the button down wasn’t enough to get the skeleton moving when power was applied. [bryan] ended up using relays to simulate button pushes, and a 555 timer circuit to take care of ...