The Rio Las Vacas in Guatemala is one of the most polluted rivers on earth. This small river is estimated to contribute 2% of the total plastic pollution we dump in the oceans yearly. The Ocean Cleanup... continue reading

posted by newtboy 9 months 4 weeks ago • 111 views • 52 secs

YouTube description: Something about the Apollo missions always confused me, sure, the step off of the lunar lander’s 91 cm footpad was a small step, but the step just before that was actually enormous! ... continue reading

posted by Aard Vark (oritteropo) 4 years 10 months 2 weeks ago • 483 views • 14:48

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

I built a natural draft furnace to test ideas about how hot a furnace could get without the use of bellows. Natural draft is the flow of air through a furnace due to rising hot air. The hot gasses in the... continue reading

posted by Mordhaus 6 years 7 months ago • 454 views • 5:46

Now I really want to go and make my own (small!) batch of seeded mustard. I have all the ingredients in my cupboard, too. YouTube description: Mustard has been around for ages, but today's chefs... continue reading

posted by Aard Vark (oritteropo) 7 years 1 week ago • 45 views • 5:51

I 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 2 months 1 week ago • 419 views • 11:27

Via YouTube: A new study led by the U.K.’s Queen Mary University has found that even relatively simple animals like bumblebees can teach other how to perform somewhat complex tasks such as pulling a... continue reading

posted by Gratefulmom 7 years 7 months 1 week ago • 595 views • 1:11

The Most Dangerous Stretch of Water in the World: The Strid at Bolton Abbey, Yorkshire I know, I know, it's a clickbait title^. But I stand by it, because the water is so deceptive, and so pretty, and... continue reading

posted by eric3579 8 years 3 weeks ago • 3,374 views • 2:17

YouTube description: I made a batch of charcoal using the mound method then stored it in baskets for later use. Charcoal is a fuel that burns hotter than the wood it's made from. This is because the... continue reading

posted by Aard Vark (oritteropo) 8 years 3 months 1 week ago • 1,003 views • 5:31

To quote her own presentation: - Our fears about debt and deficits are driven by an outdated gold standard ideology - Money is not a finite "thing" - Deficits can be too big or too small - The goal... continue reading

posted by radx 8 years 3 months 2 weeks ago • 278 views • 1:18:38