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How Turn Signals Work
auto.howstuffworks.com/turn-signal.htm
To most drivers, turn signals seem pretty simple: There's a lever that makes your signal lights flash. But there's actually some cool technology at work. Find out how this under-used device operates.
How the 'Wow!' Signal Works
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/wow-signal.htm
In 1977, SETI volunteer Jerry Ehman saw a transmission so exciting he circled it on paper and wrote the word "Wow!" It seemed to indicate a message from outer space. But what was it really?
How can nails be signals of systemic disease?
health.howstuffworks.com/skin-care/nail-care/health/nails-signals-systemic-disease.htm
How can nails be signals of systemic disease? Visit HowStuffWorks to learn how nails can be signals of systemic disease.
How to Boost Digital TV Signals
electronics.howstuffworks.com/how-to-boost-digital-tv-signals.htm
Do you know how to boost digital TV signals? Find out how to boost digital TV signals in this article from HowStuffWorks.
7 (Bad) Reasons Why People Don't Use Their Turn Signals
Why don't motorists use turn signals? HowStuffWorks Now has some not-very-good reasons why.
The Spiritual Awakening Signaled by the 757 Angel Number
science.howstuffworks.com/science-vs-myth/everyday-myths/757-angel-number.htm
757 angel number appears when a rare spiritual awakening is imminent. Learn why this powerful sequence signals divine intervention in your life and the three hidden meanings your guides want you to understand before it's too late.
Emergence of Hunger Stones Signals Worst European Drought in 500 Years
history.howstuffworks.com/european-history/hunger-stones.htm
Hunger stones in European rivers mark droughts that lead to famines. What does their reappearance now mean for the health of the European economy?
Why do you hear some radio stations better at night than in the day?
electronics.howstuffworks.com/question1.htm
Have you ever noticed a difference in the quality of radio signals depending on the time of day? See how radio signals and the Earth interact.
What is an oscilloscope used to measure?
science.howstuffworks.com/environmental/energy/question8.htm
An oscilloscope measures the voltage and frequency of an electric signal. Learn how it works.
What the Stuff?!: 4 Unidentified Sounds
www.howstuffworks.com/videos/what-the-stuff/what-the-stuff-unidentified-sounds-video.htm
Have you ever heard the Taos Hum, or detected a signal from space? What the heck is that radio tower in Russia doing? Learn more about the world's most mysterious noises.