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Posted on Jan 02, 2017
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Jan 19, 2016 | Motorcycles
on Dec 23, 2013 | Sport & Outdoor - Others
Jan 19, 2016 | Cars & Trucks
Jun 24, 2015 | PylePro PMP55R Professional Piezo Dynamic...
You can use a megaphone at any point in a game or event. They tend to be used the most during cheers that require audience participation so that they can hear and understand the cheerleaders clearly.
Jan 17, 2013 | Sport & Outdoor - Others
Morland and Athanasius Kircher lay claim
to the device. Morland, in a work published in 1655, wrote about his
experimentation with different horns and his most successful variant. This
loudest horn was made of over 20 feet of copper and could supposedly project
vocalizations as far as a mile and a half. 
Twenty years earlier, Kircher
described a device that could be used for both broadcasting on one end and
"overhearing" on the other. His coiled horn would be wedged into the side of a
building, connecting a speaker or listener inside with the surrounding
Morland favored a straight,
tube-shaped speaking device, where an initial sound would reverberate in waves
through the instrument and gradually become louder. Kircher's horn, on the
other hand, utilized a "cochleate" design, where the horn was twisted and
coiled, unlike Morland's design.
The term 'megaphone' was first
associated with Thomas
Edison's instrument 200 years later. In 1878, Edison developed a device
similar to the speaking trumpet in hopes of benefiting the deaf and hard of
hearing. His variation included three separate funnels lined up in a row. The
two outer funnels, which were six feet and eight inches long, were made of
paper and connected to a tube inserted in each ear. The middle funnel was
similar to Morland's speaking trumpet, but had a larger slot to insert a user's
Found here: http://en.wikipedia.org/wiki/Megaphone
Jan 14, 2013 | Sport & Outdoor - Others
May 04, 2012 | Computers & Internet
Apr 22, 2012 | Computers & Internet
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