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Your search for "elevator" returned 979 results
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 Aviation Innovations We'd Be Stuck on the Ground Without
science.howstuffworks.com/transport/flight/modern/10-aviation-innovations.htm
In the world of flight, it's a fine line between flying high and falling fast. Can you name 10 of the innovations that keep planes and their passengers airborne?
20 of the Most Iconic Duos in Movie History
entertainment.howstuffworks.com/the-20-most-iconic-duos-in-movie-history.htm
Butch without Sundance? Thelma on the lam with no Louise? Dumb sans Dumber? Unthinkable. Here's a look at some of the most iconic duos in cinema history.
How Weather Works
science.howstuffworks.com/nature/climate-weather/atmospheric/weather.htm
Weather is the state of the atmosphere, rather than something that only affects your area. Read more about weather and the complex system behind it.
How Gas Masks Work
science.howstuffworks.com/gas-mask.htm
Gas masks are used to filter out harmful gas and particles from the air industrial workers breathe. Learn about gas masks and how gas masks are made.
Fluid Overload Edema Overview
health.howstuffworks.com/diseases-conditions/cardiovascular/heart/fluid-overload-edema.htm
Edema is a swelling of the feet, ankle and legs caused by fluid overload. Learn more about edema, its causes and its treatments.
Paroxysmal Nocturnal Dyspnea
health.howstuffworks.com/diseases-conditions/respiratory/paroxysmal-nocturnal-dyspnea.htm
Paroxysmal nocturnal dyspnea is a sign of heart failure that makes people have trouble breathing while lying down. Learn about paroxysmal nocturnal dyspnea.
Hawthorn: Herbal Remedies
health.howstuffworks.com/wellness/natural-medicine/herbal-remedies/hawthorn-herbal-remedies.htm
Hawthorn bears fragrant flowers and vitamin C-rich berries. Learn how Hawthorn is used in herbal remedies for high blood pressure and heart disease.
How to Volunteer for the U.S. Geological Survey
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-us-geological-survey.htm
The U.S. Geological Survey offers opportunities to volunteers interested in natural science. Read about volunteer ideas through the U.S. Geological Survey.
How Tires and Wheels Work
auto.howstuffworks.com/auto-parts/towing/equipment/accessories/tires-and-wheels.htm
Tires and wheels are one of the most important components in a towing rig. Learn all about tires and wheels for towing purposes at HowStuffWorks.