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Knee Replacement Overview
health.howstuffworks.com/medicine/surgeries-procedures/knee-replacement.htm
Getting a knee replacement is often a last resort for those whose knees are destroyed by arthritis or wear and tear. Learn about knee replacements.
1970-1979 Ford Trucks
auto.howstuffworks.com/1970-1979-ford-trucks.htm
The Courier and Louisville Line were Ford's new 1970-1979 trucks. Learn more about Ford trucks in the 1970s and see truck photos at HowStuffWorks.
How Virtual Reality Works
electronics.howstuffworks.com/gadgets/other-gadgets/virtual-reality.htm
Virtual reality uses a computer to create a simulated three-dimensional world. Find out how virtual reality works and learn about the future of virtual reality.
Michelangelo Biography
entertainment.howstuffworks.com/arts/artwork/michelangelo-biography.htm
Michelangelo's biography is full of spiritual, political, and artistic struggle, as well as beautiful artwork. Learn more about this genius.
How Does an Invisibility Cloak Work?
science.howstuffworks.com/invisibility-cloak.htm
With optical-camouflage technology, the invisibility cloak is a reality. Learn what it is.
10 Misconceptions About GMOs
science.howstuffworks.com/life/genetic/10-misconceptions-gmos.htm
Are genetically modified organisms (GMOs) really bad for the environment and your health or just victims of bad publicity? We'll look at the pros and cons of this controversial subject.
How Do Bacteria Reproduce?
science.howstuffworks.com/life/cellular-microscopic/bacteria.htm
Bacteria are both friend and foe to humanity. They cause and cure health problems, make rotting food stink and give sourdough its delicious taste. Find out how these countless tiny microbes accomplish all of this and more.
How Social Security Numbers Work
people.howstuffworks.com/social-security-number.htm
Social Security numbers are assigned to each individual citizen by the federal government. Learn about Social Security numbers and how Social Security numbers are used.
How Stinger Missiles Work
science.howstuffworks.com/stinger.htm
The Stinger missile is a deadly man-portable air-defense system (MANPADS) that can be rapidly deployed by ground troops. It's lightweight, combat-proven and has a greater than 90 percent success rate. So how are Stingers used and against whom?
How Military Camouflage Works
science.howstuffworks.com/military-camouflage.htm
Camouflage is critical in military operations. Learn about different types of camouflage and see how the art of blending in is keeping up with modern detection systems.