This Digital Clock Doesn’t Need LEDs, Because It Has Water
The first timekeeping devices were probably just sundials, in the form of a stick jabbed into the dirt. But the first timekeeping devices to work independently of the sun were likely water clocks, which used the flow of water under gravity to track the passage of time. They were elegant and simple. But Strange Inventions might have misunderstood the assignment when he built his water clock.
Terminology jokes aside, this is a clever project. It is like a digital clock, but with little bottles of water instead of LEDs. It is, however, orders of magnitude more complex than an ancient Babylonian water clock.
The clock has four “digits” and each of those has 15 “pixels” in a 3×5 grid, which is the lowest effective resolution you can use and still get recognizable alphanumeric characters. Strange Inventions needed a way to turn each bottle “on” and “off.” With the water...
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