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TIL about Guédelon Castle, a medieval castle being built in France using only traditional tools and technology. Thirty-five full-time craftsmen and countless volunteers have been at work over twenty years and it's now once of France's biggest attractions, pulling in 300,000 visitors yearly.

Read more guedelon.fr

via reddit.com

xVVGk Of all the bodies in our solar system, the sun is probably the one we want to give the widest berth. It gushes radiation, and even though its surface is the coolest part of the star, it burns at about 9,940°F, hot enough to incinerate just about any material. As such, there are no plans to send a manned mission in its direction anytime soon (Mars is much more interesting, anyway), but it can't hurt to figure out at what distance a person would want to turn back. You can get surprisingly close. The sun is about 93 million miles away from Earth, and if we think of that distance as a football field, a person starting at one end zone could get about 95 yards before burning up.
90Y6 TIL on this day in 1979 the original Sony Walkman was released.
mxR5R TIL there’s a country called Chad, and the people who live there are called Chadians.
Rr18 TiL the Mediterranean filled in just 2 years when the Atlantic breached what we know as the straight of Gibraltar.
P11KG TIL Ross McWhirter, co-founder of the Guinness Book of Records, was openly anti-Irish, advocating for mandatory registration of all Irish people in the UK with local authorities. He was assassinated by the IRA in 1975 by point-blank gunshot to the head.