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Your search for "frequency" returned 924 results
Herbal Remedies for Benign Prostatic Hyperplasia
Read about safe, effective herbal remedies for benign protatic hyperplasia and learn how to reduce frequency and urgency of symptoms.
Do certain radio wave frequencies (like those used by cell phones) pose health risks?
electronics.howstuffworks.com/question4.htm
Do certain radio wave frequencies pose health risks? If so, is it safe to live within a quarter mile of a cellular phone tower or a radio antenna?
How does a CB radio antenna work?
electronics.howstuffworks.com/question490.htm
How does a CB radio antenna work? Why does it have to be tuned? How do you tune it properly?
How RFID Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/rfid.htm
RFID is a tracking system that uses intelligent bar codes to track items in a store. Learn more about RFID and find out how smart labels work.
What are bedbugs?
animals.howstuffworks.com/insects/bed-bug.htm
Bedbugs are showing up with more frequency in hotels, dorms and apartments across the country. Learn why bedbugs prefer to sleep in your bedroom.
Not a Coffee Fan? That Could Be Genetic
recipes.howstuffworks.com/not-a-coffee-fan-that-could-be-genetic.htm
We revisit the idea that a genetic variation may affect how quickly the body breaks down caffeine, affecting the frequency of a certain craving.
Why do all FM radio stations end in an odd number?
electronics.howstuffworks.com/fm-station-odd-number.htm
Do you know all FM stations end in odd numbers? Learn about the history and technology behind FM stations and FM station radio frequency.
What's the difference between active and passive speaker crossovers?
electronics.howstuffworks.com/active-passive-speaker-crossovers.htm
A speaker system uses either an active or passive crossover in order to divide the signal into different frequencies. Learn about the difference between active and passive speaker crossovers in this article.
How Numbers Stations Work
people.howstuffworks.com/numbers-stations.htm
If you've ever heard random numbers on a random empty radio frequency, you may have heard a numbers station. Find out about these cryptic broadcasts.
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.