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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 is antigravity?
science.howstuffworks.com/innovation/science-questions/antigravity.htm
Antigravity is the Holy Grail of science discoveries. Learn about antigravity research and the possible uses of antigravity technology.
What is apoptosis?
science.howstuffworks.com/life/cellular-microscopic/apoptosis.htm
Apoptosis is also known as programmed cell death, and is the reason your fingers are no longer webbed. See what apoptosis has to do with curing disease.
What is astrophotography?
science.howstuffworks.com/astrophotography.htm
If your idea of photographing the stars has nothing to do with Hollywood, you might be interested in astrophotography -- the sky's literally the limit.
What is clean coal technology?
science.howstuffworks.com/environmental/green-science/clean-coal.htm
Clean coal reduces the harmful emissions caused by the burning of fossil fuels. Learn about the development of clean coal and the uses for clean coal technology.
What is coal gasification?
science.howstuffworks.com/environmental/energy/coal-gasification.htm
What is coal gasification? Learn what coal gasification is in this article.
What is cosmological redshift?
science.howstuffworks.com/cosmological-redshift.htm
Cosmological redshift: sounds like the latest blockbuster coming to a theater near you, doesn't it? In reality, it has to do with how light itself travels -- and understanding how it works is essential to advanced space telescope technology.
What is cyberchondria?
science.howstuffworks.com/life/inside-the-mind/human-brain/cyberchondria.htm
Cyberchondria is a plague of the Internet age. But is cyberchondria just the online version of hypochondria or something more? Take a look at cyberchondria.
What is glass ionomer cement?
science.howstuffworks.com/glass-ionomer-cement.htm
Glass ionomer cement is a kind of cement used in restorative dentistry. Learn what glass ionomer cement is in this article.
What is going on during a near-death experience?
science.howstuffworks.com/science-vs-myth/afterlife/during-near-death-experience.htm
Near-death experiences have been researched and discussed for some time. Find out what happens during a near-death experience at Discovery Health.