In the modern era, we are blessed with the invention of watches and cell phones to check out the time. Back in the olden days, people used to depend on sundials to tell the time. In fact ...

Pocket watches are all well and good, but they have some caveats. They either need regular rewinding, or they need batteries. Sundials on the other hand need only the light from our One True Sun.

Thieves stole the brass gnomon or pointer of a 150-year-old antique sundial right from under the police’s nose in Dehri-on-Sone in Bihar’s Rohtas district during the intervening night of Tuesday and ...

Instead of using the magnetometer to point the sundial north, you angle the watch until the bolt’s shadow matches the white line on the PCB, and the ATmega328P computes the azimuth of the sun ...