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How Telephones Work
www.howstuffworks.com/telephone.htm
Telephones are one of the most important and useful modern inventions. Learn about telephone operation, creating a telephone network and tones and bandwidth.
How are frequency and wavelength of light related?
science.howstuffworks.com/dictionary/physics-terms/frequency-wavelength-light.htm
Frequency has to do with wave speed and wavelength is a measurement of a wave's span. Learn how frequency and wavelength of light are related in this article.
Scientists Finally Solve Mystery of Weird Mariana Trench Sound
Minke whales are the culprits. Learn more about the whale call at HowStuffWorks Now.
Binaural Beats: Does This Auditory Illusion Really Calm Your Brain?
science.howstuffworks.com/life/inside-the-mind/human-brain/binaural-beats.htm
This new form of sound therapy takes advantage of the fact that a different frequency in each ear yields a third frequency that can allegedly calm you down or improve your focus. Does it really work? Our writer tried it out.
How Modems Work
computer.howstuffworks.com/modem.htm
Most of the world still uses a standard modem to connect to the Internet. Learn how they are able to transmit so much data over a normal voice connection!
Can you really shatter a glass with a high note?
science.howstuffworks.com/shatter-glass-with-high-note.htm
There are so many things in this world that are possible, and shattering glass with sonic force is one of them – but just how probable is it, really?
Frequency Formula Basics: 2 Ways to Calculate Frequency
science.howstuffworks.com/math-concepts/frequency-formula.htm
Frequency is a fundamental concept when you're talking about waves, whether that means electromagnetic waves like radio waves and visible light, or mechanical vibrations like sound waves.
How do sharks see, smell and hear?
animals.howstuffworks.com/fish/sharks/shark-senses.htm
A shark sense isn't so different from any of our senses, a shark sense is just sharper underwater. See more about shark sense and how each works.
How Radio Works
electronics.howstuffworks.com/radio.htm
Radio waves are the backbone of nearly all modern media technology, from TV to smartphones to wireless internet. Yet, they're actually a simple technology.
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.