Search Results | frequency
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Are RFID ignition systems secure?
electronics.howstuffworks.com/gadgets/automotive/rfid-ignition-system.htm
RFID ignition systems rely on radio-frequency signals to reduce car thefts. Learn about RFID ignition systems and find out if they really icrease security and reduce thefts.
What is an atomic clock and how does it work?
science.howstuffworks.com/question40.htm
Many ads for new clocks advertise their ability to automatically synchronize themselves with the atomic clock in Boulder, Colorado. This atomic clock is more precise because it uses the frequencies of atoms as its resonator.
Why Is Snow White?
science.howstuffworks.com/nature/climate-weather/atmospheric/question524.htm
Why is snow white? It's frozen water, and water isn't white, it's clear. Learn why snow is white by examining the frequencies of light and how they're absorbed.
How Radio Scanners Work
electronics.howstuffworks.com/radio-scanner.htm
The air around you is bursting with radio waves -- and you can tap into them with minimal effort. With a simple radio scanner, all sorts of transmissions are within your earshot. Find out how radio scanners let you listen in on everything from police to astronaut transmissions.
Why do all FM radio stations end in an odd number?
electronics.howstuffworks.com/fm-station-odd-number.htm
The band that radio stations use is completely arbitrary. Learn how that relates to the specific frequency that FM stations use, and why all the FM radio stations in the United States end in an odd number?
How the Radio Spectrum Works
electronics.howstuffworks.com/radio-spectrum.htm
AM radio, FM radio, CB radio... These are all different chunks of the radio spectrum. Find out about the thousands of different uses for radio waves!
How Atomic Clocks Work
science.howstuffworks.com/atomic-clock.htm
When the power goes out and is later restored, how do you know what time to set your clocks to? Have you ever wondered how time is regulated? Learn how scientists determine exact time.
Understanding Sound Waves and How They Work
science.howstuffworks.com/sound-info.htm
When sound waves strike the ear, these waves produce the sensation of sound. Let's take a look at how sound waves work.
How Ham Radio Works
electronics.howstuffworks.com/ham-radio.htm
Ham radio lets people talk across the globe, wirelessly and inexpensively. Learn how to get started in ham radio, from licenses to equipment, and check out two-way radio reviews.
How the Doppler Effect Works
science.howstuffworks.com/science-vs-myth/everyday-myths/doppler-effect.htm
The Doppler effect is why you hear the sound from a moving object change as it nears and passes you. Find out how the Doppler effect works.