50 years of the Rubik’s Cube | How a Hungarian professor’s humble teaching tool charmed the world and continues to hold sway in the digital age

50 years of the Rubik’s Cube. How a Hungarian professor’s humble teaching tool charmed the world and continues to hold sway in the digital age

The Hindu
Patching Together Logic Gates

The digital world offers many advantages over its analog relatives, the use of boolean logic among them. Some of the functions, like NOT, OR, and AND are fairly straightforward and line up nicely w…

Hackaday