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Can hydrogen be the fuel of the future?
science.howstuffworks.com/environmental/energy/hydrogen-fuel-future.htm
When it comes to looking to the energy source that will replace fossil fuels, there are no shortage of options.
How to Prevent Odors in Toilets
We don't have to tell you that toilets are dirty and no fun to clean. But we can tell how to prevent them from staying stinky all the time.
Why do I have black gums?
health.howstuffworks.com/wellness/oral-care/problems/black-gums.htm
Wondering why you have black gums? In many cases there is hope for treatment. Learn why you might have black gums.
How to Eliminate Odor in Gums
health.howstuffworks.com/wellness/oral-care/products/how-to-eliminate-odor-in-gums.htm
Odor in gums isn't very pleasant. Find out how to eliminate odor in gums and keep your mouth healthy and clean.
The 5 Most Important Things to Know About Aging
health.howstuffworks.com/wellness/aging/aging-process/5-things-to-know-about-aging.htm
What do you know about aging? If you learn how your body works, you can live longer. See the five most important things to know about aging.
Quetzalcoatl: A Feathered Serpent Deity of Mesoamerica
people.howstuffworks.com/quetzalcoatl.htm
In the heart of ancient Mesoamerica, amidst the vibrant cultures of the Aztecs, Mayans and other indigenous peoples, one deity held a central place in religious belief and cultural imagination: Quetzalcoatl, the feathered serpent god.
How Lisa McVey Survived Abduction by a Serial Killer
people.howstuffworks.com/lisa-mcvey.htm
In November 1984, at the age of 17, Lisa McVey Noland was riding her bike home from work in Tampa, Florida, when she was abducted by a serial killer.
How to Read the Bass Clef: Sheet Music Basics
entertainment.howstuffworks.com/bass-clef.htm
If you know how to read music, you're already familiar with the bass clef, also known as the F clef. Similar to how the treble clef allows you to notate musical notes in the upper registers, a bass clef communicates lower-pitched notes for instruments and voices that use the lower registers.
The Youngest President of the United States
history.howstuffworks.com/american-history/youngest-president.htm
Off the top of your head, you may know JFK as the youngest president in U.S. history, and you'd be correct that he was the youngest to be elected. But what about the youngest person to ascend - that is, the youngest VP to become president after the death of an incumbent?
Understanding the Empirical Formula in Chemistry
science.howstuffworks.com/empirical-formula.htm
In chemistry, there are a variety of methods that scientists use to identify a chemical compound, including a molecular formula, molar mass and molecular diagram. The simplest formula of these is known as the empirical formula.