Julien Coyne invented a digital sundial. Sundials usually cast a line or triangle to indicate the hour. This one is designed so that when light passes through, it displays the shapes of numbers.

To display the time he used one of those QDSP-6064 bubble displays, because sundials are retro. His description of the project build includes a lot of fun anecdotes, like him attempting to solder ...

Sundials typically have a vertical gnomon and hour markers positioned in a circular pattern. As the earth rotates around the sun, the gnomon’s shadow moves showing the time of day. Analemmatic ...

The recent change to daylight saving time is a reminder to invest time wisely and, perhaps, find time to enjoy an educational ...