From YouTube, "The Earth is a gigantic ball of semi-molten rock, with a heart of iron as hot as the surface of the Sun. Titanic amounts of heat left over from its birth and the radioactive decay of trillions... continue reading
posted by w1ndex 1 year 6 months 2 weeks ago • 354 views • 11:59search results matching tag: canned heat
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Metals have a crystal structure. But they're not one big crystal, they're lots of small crystals called grains. The size of the grains affects the physical properties of the metal, like hardness, toughness,... continue reading
posted by newtboy 2 years 6 months 3 weeks ago • 135 views • 8:45The multiverse hypothesis or theory holds that a group of multiple universes (possibly infinite universes) comprise everything that exists: The entirety of space, time, matter, energy, information, and... continue reading
posted by BSR 2 years 11 months 1 week ago • 143 views • 10:03https://www.iter.org/ In southern France, 35 nations* are collaborating to build the world's largest tokamak, a magnetic fusion device that has been designed to prove the feasibility of fusion as a... continue reading
posted by eric3579 3 years 9 months 1 week ago • 930 views • 7:59Red 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 9 months 1 week ago • 985 views • 2:32At the old hut site (the new one being temporarily cut off by flooding) I made lime mortar from the shells of rainforest snails by firing them in a kiln, slaking them in water, mixing them into lime putty.... continue reading
posted by Mordhaus 6 years 1 month 4 weeks ago • 406 views • 7:08I 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 7 months 2 weeks ago • 1,024 views • 10:47YouTube: This video is about why it's harder to successfully land spacecraft and landers and rovers on Mars than on Earth, or Venus, or the Moon, or Titan, or asteroids. It all comes down to atmospheric... continue reading
posted by PlayhousePals 6 years 9 months 3 weeks ago • 582 views • 2:02Humans emit roughly 30 to 40 billion tons of the greenhouse gas, carbon dioxide, into the atmosphere each year. If we keep it up, Earth will continue to heat up and ultimately devastate our way of life. ... continue reading
posted by newtboy 6 years 11 months 1 week ago • 107 views • 2:18I couldn't find any info on any projects like this, so I thought I would have a try myself. I thought an oven would be the perfect platform, it already has a door, space for insulation, and comes with... continue reading
posted by Mordhaus 6 years 11 months 2 weeks ago • 15 views • 7:48Star Talk host, Hayden Planetarium director, and astrophysicist extraordinaire Neil deGrasse Tyson has a brilliant knack for breaking down big scientific ideas to the masses. But can he keep his facts... continue reading
posted by Mordhaus 6 years 11 months 4 weeks ago • 96 views • 26:04I 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 1 week ago • 419 views • 11:27YouTube Description: And how it got its name. Subscribe to our channel! http://goo.gl/0bsAjO El Niño is a weather phenomenon that occurs irregularly in the eastern tropical Pacific every... continue reading
posted by Aard Vark (oritteropo) 8 years 4 months 2 weeks ago • 1,145 views • 2:59YouTube: You’ve seen dogs pant, but do you know why they do it? And is it true that dogs can’t sweat?
posted by PlayhousePals 9 years 5 months 3 weeks ago • 26 views • 2:51- 1