BBC5 个月
The 12 and 24 hour clock
A clock with hands (an analogue clock) shows us the numbers 1-12 ... the 24 hour clock. The 24 hour clock always uses 4 digits, and we use this system most often with digital clocks.
Hackaday5 年
Building A Giant Meta-Clock Made Of Smaller Clocks
To help pass the time, [Erich Styger] decided to build a meta digital clock made up of 24 individual analog clocks, the perfect item to help welcome in the new year. The stepper clock is ...
Hackaday4 年
Tell Time Like It’s 1960 With This All-Transistor Digital Clock
Not that the present situation and the abundance of free time that many are experiencing has anything to do with [Leo Fernekes] all-transistor digital clock build, which he started a year ago ...