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Your search for "loudspeaker" returned 25 results
How the CIA Used 'Vampires' to Fight Communism in the Philippines
history.howstuffworks.com/world-history/cia-vampires-communist-rebels-philippines.htm
During in the Cold War, a CIA operative in the Philippines used the local folklore myth of the blood-sucking aswang to try and scare off communist rebels. Did it work?
Why Do Humans Have Body Hair?
health.howstuffworks.com/human-body/parts/human-body-hair.htm
Human body hair may seem annoying to groom, pluck and shave, but it does serve a purpose. Learn about human body hair and why we have hair on our bodies.
10 of the World's Ugliest Animals: So Homely They're Cute
animals.howstuffworks.com/animal-facts/ugly-animals.htm
You can't dis a naked mole rat just for being himself, but, really, what animal could be uglier? Well, the world is full of ugly animals and we've got nine other choices for you.
How LRAD Works
science.howstuffworks.com/lrad.htm
What makes sound a weapon? Review the basics of sound and discover exactly how the LRAD produces its "beam of sound." We'll also explore LRAD's hailing and warning abilities and other uses for sound.
Why Did Hundreds of Americans 'Drink the Kool-Aid' at Jonestown?
history.howstuffworks.com/historical-events/jonestown.htm
In 1978, hundreds of followers of the Rev. Jim Jones died in Guyana, after being either coerced into suicide by their charismatic leader or actually murdered.
How Underwater Sound Systems Work
electronics.howstuffworks.com/gadgets/audio-music/underwater-sound-systems.htm
n underwater sound system could get you doing the electric boogaloo on land and in water. Learn how underwater sound systems work.
Why were some Japanese soldiers still fighting decades after World War II?
history.howstuffworks.com/history-vs-myth/japanese-holdout.htm
A Japanese holdout may have been an obstinate threat in Allied eyes, but he was upholding the concept of bushido. Learn what inspired Japanese holdouts.
How Synthesizers Work
electronics.howstuffworks.com/gadgets/audio-music/synthesizer.htm
Ever wonder how a synthesizer works? Read this article to learn how a synthesizer works to produce sound and music.
How Movie Sound Works
entertainment.howstuffworks.com/movie-sound.htm
Spielberg says that sound is the major technological achievement of contemporary film. The current systems really are amazing. Learn all about movie sound!
How Spies Work
people.howstuffworks.com/spy.htm
Spying is a tense and often deadly way for governments to gather secret information from their enemies. Learn how spies are recruited and how they obtain information.