YouTube description: In Göttingen, Germany, there's a four-tonne steel ball that can be raised up a 14-metre tower -- and then dropped in less than two seconds, crashing back to earth. It makes tiny,... continue reading
posted by Aard Vark (oritteropo) 6 years 2 months 1 week ago • 724 views • 3:34Videos (57) | Sift Talk (0) | Blogs (0) | Comments (1000) |
YT - Primitive Culture Published on Jan 18, 2018 My Video Show about Make the Kind of fish trap in the shape of a basket with a hole at the small end. the wide end is dropped over a school of fish to... continue reading
posted by Buck 6 years 3 months 1 week ago • 332 views • 10:58On the morning of July 7, 1944, Captain Ben L. Salomon of the U.S. Army’s 105th Infantry, commissioned as a dentist, single-handedly held off a fierce attack of an overwhelming force of Japanese soldiers... continue reading
posted by Mordhaus 6 years 3 months 3 weeks ago • 44 views • 6:24Last year LIGO announced the detection of gravitational waves from the merger of two black holes. The science world went a little crazy. Only a few weeks ago a new rumour emerged: that LIGO had, for the... continue reading
posted by Mordhaus 6 years 7 months 2 weeks ago • 151 views • 15:51For this project you need cardboard, cutting knife, battery, electric motor, small nut and glue. The most important part - to measure needed coins and cut right holes :) This machine is very effective,... continue reading
posted by Mordhaus 6 years 7 months 3 weeks ago • 218 views • 4:59YouTube description: Black holes are scary things. But they also might reveal the true nature of the universe to us. (via laughingsquid.com, H/T @eric3579)... continue reading
posted by Aard Vark (oritteropo) 6 years 8 months ago • 403 views • 10:13It is apparently a very common method to catch catfish and eels that are in the marshy paddies.
posted by Mordhaus 6 years 9 months 4 weeks ago • 270 views • 10:03This is probably the biggest loophole in German gun law: Because this arrow shooting airgun does not shoot a projetile THROUGH a barrel but OVER a barrel, the BKA (highest German authority on gun assessments)... continue reading
posted by Mordhaus 6 years 10 months 2 weeks ago • 333 views • 5:31Scientists have JUST published this new observation. On January 4th, 2017 they detected the merger of two black holes 3 billion light-years away. This marks the furthest detection they've been able to... continue reading
posted by Mordhaus 6 years 10 months 4 weeks ago • 508 views • 5:02The 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 1 week ago • 134 views • 10:14I built a water powered hammer called a “Monjolo”. I started by making a water spout from half a hollow log to direct water from the creek. This was set up in the creek and water flowed through it.... continue reading
posted by Joe Motion (lurgee) 6 years 12 months ago • 1,216 views • 8:51I built this pottery kiln and some pottery from termite mound clay to test an alternative clay source to my usual one from the creek bank. I started by making a large grate from ordinary clay. It was just... continue reading
posted by Mordhaus 7 years 1 month ago • 419 views • 11:27From NYT: "...a really big drain called a spillway. And once you see it full of spiraling water, it is hard to take your eyes off it. For the first time in a decade, January and February have brought... continue reading
posted by chicchorea 7 years 2 months ago • 1,883 views • 1:31Is it a bird? A plane? A supernova? No! It turned out to be something else! We've also now studied the weather on a gas giant exoplanet!
posted by Mordhaus 7 years 4 months ago • 200 views • 4:47One thing I should point out is that Mr. Manley consistently gets Karl Schwarzschild's name wrong. It's Schwarz Schild (black shield) and pronounced more like shield (except the d is a t sound and it's... continue reading
posted by Aard Vark (oritteropo) 7 years 4 months 2 weeks ago • 1,050 views • 8:00When Dr. John Reid, Chairman of the Trimontium Trust, contacted us and asked for our help in order to shed some light on an ancient mystery, we immediately agreed! Dr. Reid and his team did some excavations... continue reading
posted by Mordhaus 7 years 8 months 2 weeks ago • 344 views • 29:38I invented the Bow Blower, a combination of the bow drill and forge blower to make a device that can force air into a fire while being easy to construct from commonly occurring natural materials using... continue reading
posted by Mordhaus 7 years 9 months ago • 1,388 views • 4:32The border between India and Bangladesh is extremely messy and complicated. Why is this? And what's it like living there? ----------------------- I imagine it to be like a bag of holding placed inside... continue reading
posted by Mordhaus 7 years 9 months 3 weeks ago • 158 views • 3:07