Inventions and discoveries that help us understand and change the world
At the end of World War I, many worried that within a few years the world’s oil supply would be depleted. In response, Eugene Jules Houdry, a French mechanical engineer with a passion for racing cars, decided to turn lignite, a low-rank, brownish-black coal, into gasoline.
Defending a woman accused of murder, Dr. Samuel Jackson questioned the methods and the confidence of other physicians. The history of this 1828 trial provides insight into the moral ambiguity of scientific testimony. Arsenic proves difficult to detect even today.