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How Central Vacuum Systems Work
home.howstuffworks.com/central-vacuum.htm
When the floor needs a good cleaning, most of us reach for the portable vacuum cleaner and drag it around the house. Well, what if your whole house were a vacuum? Find out how central vacuum systems work.
How LRAD Works
science.howstuffworks.com/lrad.htm
What makes sound a weapon? Review the basics of sound and discover exactly how the LRAD produces its "beam of sound." We'll also explore LRAD's hailing and warning abilities and other uses for sound.
Paintings by Pierre-Auguste Renoir
entertainment.howstuffworks.com/arts/artwork/paintings-by-pierre-auguste-renoir.htm
Pierre-Auguste Renoir became an influential Impressionist through his brilliant use of color. Learn about the works of Pierre-Auguste Renoir.
How the Toyota PM Works
auto.howstuffworks.com/toyota-pm.htm
With the unveiling of the Personal Mobility (PM) concept car, Toyota's designers have shared a new vision of personalized travel. Find out all about the PM's design, power, and unique features.
What Is an RSS Feed?
computer.howstuffworks.com/internet/basics/rss.htm
Short for Really Simple Syndication, RSS is a way to subscribe to a source of information, such as a Web site, and get brief updates delivered to you. So what should you subscribe to, and what happens next?
How Scanners Work
computer.howstuffworks.com/scanner.htm
Before the digital camera explosion, flatbed scanners were the way to get images into a PC and online. These devices turn images on paper into data you can access on a computer. Find out how scanners analyze, process and transfer images.
Top 10 Marked-up Items in the Grocery Store
money.howstuffworks.com/personal-finance/budgeting/10-marked-up-items-in-the-grocery-store.htm
Avoid groceries with high mark-ups if you really want to save money. Read about the top 10 marked-up items in the grocery store.
How do high FSH levels affect getting pregnant?
How do high FSH levels affect getting pregnant? Visit HowStuffWorks to learn how high FSH levels affect getting pregnant.
How Armored Cars Work
auto.howstuffworks.com/armored-car.htm
Most armored vehicles get their extra protection from specialists instead of at the factory. Read about armored cars and how they're designed.
What Is the Chemtrails Conspiracy Theory?
science.howstuffworks.com/transport/flight/modern/what-are-chemtrails.htm
It's hard to look up in the sky on a clear day and not see a "cloud" trailing from an airplane. They're called contrails, though some refer to them as "chemtrails" and have odd explanations for their existence.