It's a cool project, anyway, and I'm all down for that. A combination of cheerfully-coloured 3D-printed components and RC ...

he discovered his creations made a lot of noise. For this project, instead of trying to quiet his blower, he decided to make one as loud as possible in the form of an air raid siren. The basic ...

However, the key to getting that authentic sound is in the sweep of the tone ... for when they’re a bit older. We’ve seen air raid siren builds before, too – like this sturdy wooden unit.

The sound of the 'warning' signal and the 'all clear' would become very familiar to people living in large cities in Britain. Air raid sirens were placed on the top of tall buildings - often ...

KIEV, November 5. /TASS/. Air raid sirens went off across Ukraine on Saturday morning, according to the official air raid resource. Air raid sirens are sounding in the country’s capital of Kiev ...

The noise caused confusion among residents, with some on social media comparing it to an air raid siren. "Anyone know why there's an air raid siren going off in Belfast for that seems like an ...

According to an official alerting system, air raid sirens are ringing out in the Dnepropetrovsk and the Kharkov regions. Last night, those regions and five more, specifically the Kirovograd ...

Talk story about our municipal air-raid siren problem. Dr. John C. Steinberg, of the Bell Telephone Laboratories, exploded the one-big-siren theory with a few facts. The noise-level of a N.

"I could tell right away that the sirens didn't sound like the normal tornado siren. It had the up-and-down pitch of an air raid or an attack siren," added Behnke. That's exactly the tone ...

This clip offers a specially-created montage of air-raid sounds, including an air-raid siren sounding the warning, the sound of aircraft and bombing, and ending with the 'all clear' siren.