Alarm Clock

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 309.9 Hz, 93 cents sharp 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 ring the alarm.

A wind-up alarm clock has two metal bells on top and a little hammer between them. At the set time a spring inside lets the hammer go, and it strikes the two bells back and forth very fast, loud enough to wake a sleeper. Before alarm clocks were common, some people were paid to go around town tapping on windows to wake others up.

The hands on this clock show the real time where you are, or in another time zone you pick in the Splash tab. Tap it to ring the alarm: the hammer rattles between the bells and the whole clock shakes and hops. Pick its color in the Splash tab. With ✋ Hands-on on, drag around the face to set the time: the minute hand clicks round under your finger and the hour hand follows through the gears, a twelfth as fast.

Made in Splashery. Its code is MIT.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.