In July a botched software update caused chaos for the airline industry worldwide When the CrowdStrike software bug bricked 8.5 million computers around the world on 19 July, some of the first ...
Scribbling in your next dairy entry? Or brainstorming novel ideas? Put pen to paper with a writing instrument to match the occasion. Using a fountain pen may take you back to your childhood and ...
The circuit is a simple one, and a classic. The spring from a ballpoint pen is soldered to the base of a BC547 transistor, and when held close enough to a conductor carrying AC power, a current is ...