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Your search for "urban center" returned 433 results
How the Census Works
people.howstuffworks.com/census.htm
The U.S. census is a huge project bent on counting every U.S. resident. Find out about the changes for the 2020 census with HowStuffWorks.
How Hydroponics Works
home.howstuffworks.com/lawn-garden/professional-landscaping/hydroponics.htm
Hydroponics is the practice of growing plants without soil. Learn more about how hydroponics uses water as the nutrients for plants.
How Landfills Work
science.howstuffworks.com/environmental/green-science/landfill.htm
What happens to all of that trash you put on the curb every week? It doesn't just disappear into a parallel universe. Much of it probably goes to the local landfill, and how it gets handled there is a very involved system.
How to Prevent Sexually Transmitted Diseases
health.howstuffworks.com/wellness/preventive-care/how-to-prevent-sexually-transmitted-diseases.htm
Preventing sexually transmitted diseases is simply a matter of being prepared and using your head. Learn how to treat and prevent various STDs.
How Mirrors Work
science.howstuffworks.com/innovation/everyday-innovations/mirror.htm
Mirrors are explained in this article from HowStuffWorks. Learn about mirrors.
How Traffic Jam Assistance Systems Work
Will traffic jam assistance systems really alleviate traffic jams? Keep reading to learn How Traffic Jam Assistance Systems Work.
How Bioarchaeology Works
science.howstuffworks.com/environmental/earth/archaeology/bioarchaeology.htm
Archaeologists dig up and study the material remains of human civilizations. Bioarchaeologists do the same thing, except they focus on the remains of, well, us. What's the big deal about old bones and teeth?
How Voodoo (Vodou) Works
people.howstuffworks.com/voodoo.htm
If asked to describe Voodoo, many people would mention pin-filled dolls, zombies and spirit possessions. Explore the Voodoo religion and find out if the stereotypes about it are true.
How Subways Work
science.howstuffworks.com/engineering/civil/subway.htm
London without the Tube? New York without its underground scene? Atlantans gliding straight from their MARTA stops to the airport? What would life be like without our underground transportation system?
How Cults Work
people.howstuffworks.com/cult.htm
Separate fact from propaganda and learn what a cult actually is and look at some of the more notable cult incidents in recent history.