Drawings discovered in 1967 showed this artist invented the chain drive around 1492
Christiaan Huygens got into the swing of things in 1656 by adding this to the clock
Bell invented it in 1876; David Hughes gave it this name in 1878, & don't lean into it when you reply
In 1611 Johannes Kepler introduced a second convex lens, giving this instrument greater power
After hearing this invention of his work, Edison said, "I was never so taken aback in my life"
C. Vanderbilt thought George Westinghouse's idea of stopping a train by this means a fool notion
In 1982 the Jarvik-7, the first permanent one of these, was implanted in patient Barney Clark
The 1st automated instrument to analyze this genetic material's structure was developed in the mid-1980s
In 1835 C.S.A. Thilorier froze this gas to create the first "dry ice"
First built in 1960, it's also been called an optical maser