The instruments need JavaScript to move. You can still explore their mechanisms, history and sources in the reading list.
A weight needs a distance. A seed needs the right conditions. A voice needs someone at the other end.
Seventeen relationships to explore with your hands. Change something, see what answers, then follow the history and science behind it.
The instruments simplify what they show. Each one explains what it includes, what it leaves out, and where you can learn more.