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How HD Radio Works
electronics.howstuffworks.com/hd-radio.htm
HD Radio promises higher quality sound, more stations and extra information. See how HD radio works, from the digital signal to your HD radio receiver.
How Beats Audio Works
electronics.howstuffworks.com/gadgets/audio-music/beats-audio.htm
What kind of sound do Dre's Beats Audio products deliver? Find out how Beat Audio works and how it can help you hear more of the music.
Can a sound wave kill you?
science.howstuffworks.com/can-sound-wave-kill.htm
A sound wave alone probably won't kill you. Crank the volume on a terrible song, though, and you just might annoy everyone to death.
How Remote Controls Work
electronics.howstuffworks.com/remote-control.htm
In WWII, remote controls detonated bombs for the first time. Now some of us spend an hour looking for the remote before we remember there are buttons on the TV. Find out the difference between a "universal" and a "learning" remote and check out some of the other high-tech features you can find on remotes today.
What causes that howling sound in PA systems?
electronics.howstuffworks.com/gadgets/audio-music/question263.htm
What causes that howling sound in PA systems? Everyone calls it feedback -- what's "feedback"? Learn more information about PA systems in this article.
How DSL Works
computer.howstuffworks.com/dsl.htm
Digital subscriber line (DSL) technology transmits data over phone lines without interfering with voice service. Find out how DSL uses extra bandwidth to provide a fast Internet connection without taking over your phone.
How Stethoscopes Work
science.howstuffworks.com/innovation/everyday-innovations/stethoscopes.htm
Stethoscopes started as a way for 19th-century doctors to put some distance between themselves and grubby patients. Today though, this simple listening tool is one of the best ways to diagnose a range of problems.
How Cell-phone Radiation Works
electronics.howstuffworks.com/cell-phone-radiation.htm
Cell-phone radiation has been debated for years now. Find out what the buzz is about and how to protect yourself when choosing and using a cell phone.
How the Bulova Precisionist Works
electronics.howstuffworks.com/gadgets/clocks-watches/bulova-precisionist.htm
Do you know how the Bulova Precisionist watch works? Find out how precise the Precisionist really is.
How do radio-controlled clocks set themselves to the atomic clock in Colorado?
electronics.howstuffworks.com/gadgets/clocks-watches/question461.htm
Many radio-controlled clocks automatically sync their time with the atomic clock in Boulder, Colorado. Learn about radio-controlled clocks.