Genghis Khan exempted the poor and clergy from taxes, encouraged literacy, and established free religion, leading many peoples to join his empire before they were even conquered.
28
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
In Tunisia, you can book an overnight stay in Luke Skywalker’s boyhood home for only $10.
13
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
13