It’s the anniversary of the 20th of July plot, the unsuccessful attempt to kill Hitler in 1944.
A brief history of prosthetic limbs.
The Bayeux Tapestry with knobs on: What do the tapestry’s 93 penises tell us?
On July 20, 1969, Neil Armstrong walked on the moon.
The Scientific Quest for the Perfect S’more.
Ye Oldest Public Library in the English Speaking World.
ICYMI, Monday’s links are here, and include the physics of how lawn-mower blades cut grass (at 50K frames per second), spiders flying by using electricity, and the anniversary of the beginning of the atomic age (the 1945 Trinity nuclear test).