WikiVisually
Infinite photos and videos for every Wiki article · Find something interesting to watch in seconds
Kings of France Celebrities History by Country Richest US Counties Recovered Treasures Animals Great Artists Famous Castles Largest Empires Rare Coins Presidents Ancient Marvels Orders and Medals Great Museums Countries of the World Great Cities World Banknotes Wars and Battles Largest Palaces Best Campuses Tallest Buildings British Monarchs Sports Crown Jewels Supercars Wonders of Nature
more top lists
History
Acoustic mirror
Videos
Page
An acoustic mirror is a passive device used to reflect and focus (concentrate) sound waves. Parabolic acoustic mirrors are widely used in parabolic microphones to pick up sound from great distances, employed in surveillance and reporting of outdoor sporting events. Pairs of large parabolic acoustic mirrors which function as "whisper galleries" are displayed in science museums to demonstrate sound focusing.
4.5-metre-high (14 ft 9 in) WW1 concrete acoustic mirror near Kilnsea Grange, East Yorkshire, UK. The pipe which held the "collector head" (microphone
4.5-metre-high (14 ft 9 in) WW1 concrete acoustic mirror near Kilnsea Grange, East Yorkshire, UK. The pipe which held the "collector head" (microphone) can be seen in front of the structure
Acoustic mirrors at RAF Denge
Acoustic mirrors at RAF Denge
A parabolic whispering dish that's part of an installation at Jodrell Bank Observatory.
A parabolic whispering dish that's part of an installation at Jodrell Bank Observatory.
A pair of smaller acoustic mirrors in a park in Muiderberg.
A pair of smaller acoustic mirrors in a park in Muiderberg.
Whispering gallery
Videos
Page
A whispering gallery is usually a circular, hemispherical, elliptical or ellipsoidal enclosure, often beneath a dome or a vault, in which whispers can be heard clearly in other parts of the gallery. Such galleries can also be set up using two parabolic dishes. Sometimes the phenomenon is detected in caves.
The Whispering Gallery of St Paul's Cathedral, London
The Whispering Gallery of St Paul's Cathedral, London