Red sprites, secondary jets and newly discovered green afterglow called "ghosts" triggered by red sprites. A dozen vibrant red sprites were recorded on this evening and only two events had the green afterglow.... continue reading

posted by newtboy 3 years 10 months 1 week ago • 985 views • 2:32

Is there a right way to ride an escalator? City escalator etiquette states that one side is for standers and the other for walkers. But is this the safest, most efficient way to ride an escalator?

posted by Mordhaus 5 years 2 months ago • 357 views • 6:26

YouTube description: The moon is looking more full than ever. The director Todd Douglas Miller assembles beautifully restored archival footage, blends that with audio from the astronauts and a vibrant... continue reading

posted by Aard Vark (oritteropo) 5 years 2 months 3 weeks ago • 311 views • 2:41

Rue Canusa (or Canusa Avenue) is a street that's split in two by a border: the northern part is in Stanstead, Canada, and the southern part is in Derby Line, USA — and border crossings here aren't as... continue reading

posted by Mordhaus 6 years ago • 1,383 views • 2:55

YT: I built an A frame hut as a large work space for projects. First I made a celt hatchet to cut timber for the hut. The axe head was made of amphibolite and the handle was made of a species of wattle.... continue reading

posted by nanrod 6 years 4 months 1 week ago • 524 views • 9:05

YouTube description: This is how we go from single cells to people. EVO-DEVO Huxley B. Mac. Oh Carroll, Carroll Gould, Stephen Jay yeah D-D-D-D-Davidson and Peter See One cell divide and... continue reading

posted by Aard Vark (oritteropo) 6 years 8 months ago • 923 views • 4:46

I made a brick mold that makes bricks 25 x 12.5 x 7.5 cm from wood. A log was split and mortise and tenon joints were carved using a stone chisel and sharp rocks. The mold was lashed together with cane... continue reading

posted by Mordhaus 6 years 8 months 1 week ago • 1,024 views • 10:47

I built a prawn trap from lawyer cane, sticks and vine. Then I caught some prawns and ate them. Prawn (and fish) traps are simple traps designed to catch aquatic life due to their shape. It consists... continue reading

posted by Mordhaus 7 years 6 months 4 weeks ago • 257 views • 7:16

I 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 10 months 1 week ago • 1,388 views • 4:32

YouTube description: There is extreme fishing and then is going to such extremes that you have a rod and a worm-like lure fused to your face. Quite frankly it's the type of commitment we admire. Meet... continue reading

posted by Aard Vark (oritteropo) 8 years 1 month 2 weeks ago • 271 views • 6:32

I made this bow and arrow using only primitive tools and materials.The bow is 1.25 m (55 inches) long and shoots 60 cm (2 feet) long arrows. I don't know the draw weight - safe to say greater than 15 kg... continue reading

posted by Mordhaus 8 years 2 months ago • 621 views • 5:54

This hack should help you get the upper hand in the dark. Of course it wouldn't hurt if you had a gun, split second decision capabilities and lightning fast reflexes. Just sayin' ...

posted by PlayhousePals 9 years 3 months ago • 75 views • 2:39

Split mind.

posted by PlayhousePals 9 years 8 months ago • 179 views • 11:44

I want some of that wood! I have spent longer on single pieces of live oak, pecan, and hickory. I have better axes and splitters. Fiskars Ax vs. Douglas Fir. 092814

posted by chicchorea 9 years 8 months ago • 99 views • 9:04

YouTube Description: In which John Green teaches you about the United States as it was in the 1990s. You'll remember from last week that the old-school Republican George H.W. Bush had lost the 1992 presidential... continue reading

posted by PlayhousePals 1 decade 4 months 1 week ago • 247 views • 15:38

Using high-speed video, a pitcher explains the action of his arm and fingers for the different kinds of baseball pitches: fastball, cutter, two-seamer/sinker, slider, "reverse slider" (screwball), curveball,... continue reading

posted by Hastur 1 decade 5 months ago • 9,535 views • 18:00

From YT: We're in Dublin discussing Ireland's only science Nobel Prize winner, Ernest Walton, known as ETS to his colleagues. One of those colleagues, Iggy McGovern, penned a poem about Walton called... continue reading

posted by Skeeve 1 decade 2 years 6 months 3 weeks ago • 1,481 views • 9:27