How does a uniform cable beneath a helicopter hang? The story of a controversial physics question on the qualifying exam for the 2014 US Physics Olympiad team.

posted by eric3579 9 months 3 weeks ago • 262 views • 12:59

This is the story of America's massive forging presses built during the cold war used to build America's most advanced machinery - the Heavy Press Program. Modern airplanes, missiles, helicopters, turbines... continue reading

posted by nanrod 3 years 8 months 3 weeks ago • 528 views • 12:48

YouTube description: I graduated from Advanced Helo Underwater Egress Training at Marine Corps Base Hawaii. When life gets hard THINK CLEARLY, and take small steps towards safety. Please subscribe... continue reading

posted by Aard Vark (oritteropo) 3 years 9 months 3 weeks ago • 1,827 views • 11:19

In the last few years, wildfires have been getting worse - and, oddly, it's because humans have been preventing them. From a helicopter above the forests of British Columbia, and from the Tree Ring Lab... continue reading

posted by Mordhaus 4 years 3 weeks ago • 124 views • 3:46

The 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 5 years 2 months 3 weeks ago • 123 views • 10:14

In this video, we explore the helicopter speed limit, dissymmetry of lift, and what causes retreating blade stalls.

posted by Mordhaus 5 years 8 months 3 weeks ago • 709 views • 4:15

Destin livin' and lovin' life! YouTube: GET SMARTER SECTION Watch all the Smarter Every Day videos about helicopters: https://www.youtube.com/watch?list=PL... Tail Number CGYYW is a 2011 Robinson R44 II ... continue reading

posted by PlayhousePals 6 years 3 months 2 weeks ago • 650 views • 9:12

"Something just clicked in your brain."

posted by PlayhousePals 6 years 8 months 3 weeks ago • 1,064 views • 9:45