A group of World War II-era scientists used themselves as guinea pigs to learn to breathe underwater. His experiments helped make D-Day possible.
During World War II, scientists conducted experiments on themselves to help divers and submarine crews. Scientists have performed more than 600 experiments on themselves, breathing in CO2, oxygen and more gases. The British Navy used its data for reconnaissance missions, including before D-Day. On January 18, 1944, a miniature submarine known as the X-craft sailed… Read More »