This project combines a sand timer with a rotating mechanism and an optical beam through the center of the timer to observe the falling sand as they create a USB Hourglass. This project combines a ...
Versatile time management tool: Ideal for games, timed tests, and productivity challenges. Compact design: Measures 2 1/2" x 5", perfect for desks, classrooms, and travel. Enhances focus: Encourages ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results