The basic idea behind [Matthias]’ air raid siren is to make two impellers that force air through two stators along the perimeter of the rotor. As the siren spins, the air coming from the ...

Perhaps one of the most iconic and memorable but simultaneously terrifying memories of 1950s America was the fear of nuclear disaster. Referred to as mutually assured destruction, the looming ...

Air raid sirens and explosions heard over Jerusalem after Israeli military says a missile was launched from Yemen.

Six days after the attack, Japan surrendered to the Allies bringing to a close the most destructive conflict in recorded ...

An archive recording of an air-raid in progress. 'Blackout' regulations came into force as the war began ... When enemy planes were spotted air raid sirens would sound. People would make their ...

The rising and falling wail of an air raid siren sounded when enemy aircraft ... properties and animals safe during the Belfast Blitz. WW2: What was the secret to winning the Battle of Britain?

Japan is remembering the 105,000 people killed in a single night, 80 years ago Monday, in the U.S. firebombing of the ...

JERUSALEM (AP) — Air raid sirens and explosions heard over Jerusalem after Israeli military says a missile was launched from Yemen.