From Popsci.com:
On the 65th anniversary of the invasion of Normandy, a look at the then-cutting-edge military gear of D-Day, as covered in our pages.
Ever since the four-wheeled Sumerian donkey chariot was replaced by the two-wheeled horse-drawn variety, war and technological innovation have gone hand and hand. In no conflict was this more apparent than World War II--arguably the first modern war. As soldiers fought from one end of the globe to the other, scientists developed many of the technologies that underlie not only today's wars, but our daily lives: nuclear power, radar, jet propulsion and the personal computer.
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My Comment: I posted this story two years ago, but it is still a fascinating look at the military technology and know-how that was used on D-Day.