Wing-mounted guns were still popular, but the synchronization gear promised more precise killing.
World War I
This 1905 Fiat's WWI airship engine has no trouble spinning those skinny tires.
July 28 marked the hundredth anniversary of the start of World War I, what was at the time the single most devastating war in human history. It was also a war of many firsts – chemical weapons, tanks and most notably, aircraft, took part in what was at the time called the Great War.
A car that could run on thin air? On the road by 2016? That's what Peugot-Citroen says it will be selling: A hybrid car that runs on a combination of gasoline and air.