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 ...

A photo allegedly showing then-British Prime Minister Winston Churchill visiting the White House during World War II wearing a ... and zipped up when the air raid sirens went" — made the ...

Air raid sirens were heard in Jerusalem and central Israel on Thursday after the Israeli military said it intercepted two ...

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 ...

On the morning of August 9th 1945, air raid sirens began to ring out in the Japanese ... Japanese spotters had only identified two United States Army Air Force B-29 bombers and they had previously ...

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?

Five months before the United States dropped atomic weapons on Japan's Hiroshima and Nagasaki, the nighttime raid on March 9-10, 1945 was World War II's deadliest using conventional bombs.