Standard QR codes hide three larger squares in their corners so scanners can orient them from any angle, while their strongest Reed-Solomon setting can restore roughly 30 per cent of damaged codewords, though not necessarily 30 per cent of the visible squareJuly 24, 2026
How did a failed CD deal between Sony and Nintendo in 1991 accidentally create the console that would sell over 100 million units and reshape gaming?July 24, 2026
At 3 gigahertz, a processor has only a third of a nanosecond between clock ticks, enough time for light to travel about 10 centimetres in vacuum before real interconnects, logic gates and capacitance shrink the distance a signal can cross on the chip Saving Tips July 24, 2026 A processor running at 3 gigahertz gets one clock cycle every 333 picoseconds, roughly a third of a nanosecond. In…
When Grace Hopper wanted to explain a nanosecond to admirals who kept asking why satellites were slow, she handed each of them a piece of wire 11.8 inches long, the exact distance light travels in a billionth of a second, and told them to keep it in their pocket as a reminder that physics, not laziness, sets the limit. Saving Tips June 8, 2026 Grace Hopper kept a bundle of wires, each one cut to exactly 11.8 inches. She handed them out at lectures,…
