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In 1945, Raytheon engineer Percy Spencer noticed a candy bar melting in his pocket while he worked near a radar magnetron. Instead of dismissing the accident, he tested the same energy on popcorn and eggs, then developed the technology that became the microwave oven—and ultimately transformed how the world cooks.
1+ week, 3+ day ago (1583+ words) The melted snack supplied a clue, but a patent, a team of engineers and two decades of miniaturisation turned microwave heating into an everyday appliance. By The Long View · Edited by Lachlan Brown Published September 4, 2026 · How we edit The microwave…...
Adults aged 40 and older completed an executive-function test 12% faster after running a HEPA air purifier at home for one month, suggesting that reducing traffic-related indoor air pollution may produce measurable cognitive benefits surprisingly quickly.
1+ week, 6+ day ago (1252+ words) A randomized crossover trial found a 7.4-second difference on one timed mental-flexibility task among 50 adults aged 40 and older. The result is promising but came from a post hoc subgroup in a secondary analysis and needs replication. By Mind & Matter · Edited…...