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How did ancient civilizations use sundials to tell time?
electronics.howstuffworks.com/gadgets/clocks-watches/ancient-civilizations-use-sundials.htm
Ancient sundials first popped up in Egypt around 1500 B.C. Learn how these sundials came about and what they were used for all those centuries ago.
What happens to chimps used in medical research?
animals.howstuffworks.com/mammals/chimpanzee-research.htm
Chimpanzee research dates back to the 1920s with Robert Yerkes. Learn what happens in chimpanzee research and why some countries ban the practice.
What causes the sound of a heartbeat?
health.howstuffworks.com/human-body/systems/circulatory/sound-of-heartbeat.htm
We're all familiar with the sound of a heartbeat: lub-dub, lub-dub. Learn what causes the sound of a heartbeat and why yours might sound different.
How Santa Claus Works
people.howstuffworks.com/culture-traditions/holidays-christmas/santa-claus.htm
Santa Claus travels around the world each year on Christmas Eve and delivers gifts to good children. Find out who Santa Claus is at HowStuffWorks.
How Energy Star Works
home.howstuffworks.com/home-improvement/construction/green/energy-star.htm
Energy Star provides objective energy use information about consumer products. See how the Energy Star program works to save you money and time.
How Video Sharing Works
computer.howstuffworks.com/internet/basics/video-sharing.htm
Video sharing is one of the fastest growing mediums on the web. Learn more about video sharing at HowStuffWorks.
How Computer Addiction Works
computer.howstuffworks.com/internet/basics/computer-addiction.htm
Computer addiction is a new form of addiction in which the user cannot pull themselves away from computer activities. Learn about computer addiction.
How a Cold Heat Soldering Iron Works
science.howstuffworks.com/cold-heat.htm
Cold Heat soldering irons are lightweight, portable and don't come with the potential for serious injury. Learn more about Cold Heat soldering.
How Bradley Fighting Vehicles Work
science.howstuffworks.com/bradley.htm
The U.S. military uses the Bradley Fighting Vehicle to scout enemy positions and transport troops into hostile territory. With land and sea capabilities, as well as speed and heavy-duty weapons, it's well-outfitted for the job. Learn all about the Bradley and check out some great action photos.
Is it possible to shrink large pores?
health.howstuffworks.com/skin-care/problems/treating/shrink-large-pores.htm
Is it possible to shrink large pores? Visit HowStuffWorks to learn if it's possible to shrink large pores.