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What Is Biodiesel?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/biodiesel.htm
Biodiesel turns biodegradable fats and oils into an alternative fuel for your car. Learn about biodiesel components, biofuel history and biodiesel pros and cons.
Earth: A Primer on the Third Rock From the Sun
science.howstuffworks.com/earth.htm
Earth is an enormous and extremely complex planet. Learn about the inner workings of the planet Earth and find out what forces are constantly at work on Earth.
Can vitamins lower cholesterol?
The link between vitamins and cholesterol is complex. Learn how antioxidents in vitamins and minerals fight free radicals to keep your heart healthy.
10 Anti-aging Foods
health.howstuffworks.com/wellness/aging/anti-aging-tips/10-anti-aging-foods.htm
Anti-aging foods can help counteract the aging process. See our list of the top 10 anti-aging foods to start eating healthier today.
How Cotton Candy Works
science.howstuffworks.com/innovation/edible-innovations/cotton-candy.htm
It's your favorite, sticky-sweet treat at a carnival, but do you know how cotton candy is actually made? Read this article to find out how.
How Millimeter Wave Scanners Work
science.howstuffworks.com/millimeter-wave-scanner.htm
If you've traveled recently, you probably raised your arms above your head and waited for a millimeter wave scanner to do its screening thing. During those 10 seconds or so, did you ever wonder exactly how the device produced your image?
10 Ways to Make Your Perfume Last Longer
Are you looking for some ways to make your perfume last longer? Check out these 10 ways to make your perfume last longer.
How Yogurt Works
science.howstuffworks.com/innovation/edible-innovations/yogurt.htm
It's been part of people's diets around the world for centuries, but has recently become a health-food staple. Are you one of the people who seek a little culture every day?
10 Scientific Laws and Theories You Really Should Know
science.howstuffworks.com/innovation/scientific-experiments/10-scientific-laws-theories.htm
Even if you don't operate a scanning electron microscope all that frequently, you might want to brush up on these 10 scientific laws and theories. After all, they're some of our best tools for describing how the universe works.
How Digital Immortality Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/digital-immortality.htm
Digital immortality may enable people to live forever. But would we want digital immortality to exist? Learn how digital immortality might work.