Ever wonder how #WW1 fighter pilots timed their bullets to shoot through the propellers of their planes? Well, now you can see it happening in 120,000 fps thanks to #theslowmoguys. | The Slow Mo Guys

In this clip from War Pictoral News, British workers test newly-produced Vickers, Lewis and Bren and Browning machine guns at a factory, 1942. © IWM WPN 41 | Imperial War Museum London

British soldiers fire a 1-pounder Vickers anti-aircraft gun on a rail flatcar during the Mesopotamian campaign, ca. 1917-18. Film: IWM 80 | Imperial War Museum London

Vickers machine gun teams of the Manchester Regiment filmed in action against German AA defences by the River Aller near Rethen, Germany, 1945. Film: IWM A70 299-5 | Imperial War Museum London