来自MSN3 个月
Why our tech fails us: Learning from century-old light bulb that never goes out
Today’s bulbs predominantly use tungsten filaments, a shift from the carbon filaments of the past. Tungsten, introduced in the early 20th century, has a higher melting point, which allows for ...
来自MSN2 个月
As we enter the shortest days of the year here’s the history of light bulbs
incandescent lamps with tungsten filaments appear on the European market. These bulbs lasted longer, were brighter and more efficient than lamps with carbon filaments. 1908: Edison screws Part of ...