search results matching tag: modern day
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From Youtube, "A brief overview of this ingenious method of compressing air using only the power of water. The way a trompe harnesses the power of water to generate compressed air with no moving parts... continue reading
posted by w1ndex 4 years 3 months 3 weeks ago • 1,217 views • 8:50YouTube description: Until the mid 1950’s, small short-range airliners like the twin engined IL-14 were really the only type the Soviet Union produced. And that meant flying across the country’s... continue reading
posted by Aard Vark (oritteropo) 5 years 4 months 1 week ago • 426 views • 10:05The Lahti L-39 is a Finnish 20 mm anti-tank rifle used during the Second World War. It had excellent accuracy, penetration and range, but its size made transportation difficult. It was nicknamed "Norsupyssy"... continue reading
posted by Mordhaus 6 years 11 months 2 weeks ago • 140 views • 10:14For nearly all of human history, most people were very, very poor. But something happened after 1800. Average wages began to rise. For example, in the past 200 years, the average wage in the United States... continue reading
posted by Trancecoach 1 decade ago • 999 views • 3:19- 1