Home » Inked Science

hackmanite, winchite

Color Changing Gemstone: Photochromism At Its Finest

You know those Transition eyeglasses that automatically darken in the bright sunlight then return to normal indoors? The process that makes Transition lenses possible is called tenebrescence, otherwise known as reversible photochromism. Tenebrescence is not a man-made invention developed strictly for sunglasses. It occurs naturally. Some minerals, including hackmanite, have the ability to change color …

Keep going...

From Slave to Botanist, Professor, and Inventor: George Washington Carver

Born into slavery in 1864, George Washington Carver used his natural scientific curiosity and the power of education to become one of the leading agricultural scientists of his day. He advocated that southern farmers rotate their crops between cotton, which quickly depletes the soil, and peanuts, which added nitrogen to the soil. His concept of …

Keep going...