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How Projection Television Works
electronics.howstuffworks.com/projection-tv.htm
Projection television can provide an HD picture at a range of sizes and prices. Learn about front and rear projections TVs and read HDTV reviews.
How Differentials Work
auto.howstuffworks.com/differential.htm
Differentials let cars make turns with ease. Find out how the differential allows the wheels to rotate at different speeds.
Everyday Science: Gear Quiz
play.howstuffworks.com/quiz/gear-quiz
Whether you know it or not, you probably use gears several times each day. Gears are used in a wide variety of mechanical devices including wrist watches, bathroom scales, washing machines and, of course, automobiles.
How Car Steering Works
auto.howstuffworks.com/steering.htm
When it comes to crucial automotive systems, steering is right up there with the engine and the brakes. Find out all about car steering systems.
How to Build a Wheelchair Ramp
home.howstuffworks.com/home-improvement/construction/planning/build-wheelchair-ramp.htm
Building a wheelchair ramp can be difficult without instruction. Learn how to build a wheelchair ramp at HowStuffWorks.
5 New Engine Technologies That Make Cars More Fun to Drive
auto.howstuffworks.com/5-new-engine-technologies-make-cars-fun-to-drive.htm
Not all engine technologies are about durability or fuel efficiency. Read about five new engine technologies that make cars more fun to drive.
Understanding the Empirical Formula in Chemistry
science.howstuffworks.com/empirical-formula.htm
In chemistry, there are a variety of methods that scientists use to identify a chemical compound, including a molecular formula, molar mass and molecular diagram. The simplest formula of these is known as the empirical formula.
How CVTs Work
auto.howstuffworks.com/cvt.htm
CVTs were first conceived more than 500 years ago and are now found in some cars. Learn about CVTs, continuously variable transmissions, and types of CVTs.
What is the redline of an engine?
auto.howstuffworks.com/redline-of-engine.htm
The redline of an engine is the maximum rpm value it can handle. Learn about the redline of an engine in this article.
All About the Pentagram: Meaning, History and Variations
people.howstuffworks.com/pentagram-meaning.htm
From the earliest appearance of the five-pointed star in ancient times to its former role as a Christian symbol, there are millennia of history surrounding the pentagram, meaning it's one of the oldest symbols in the world. The pentagram's significance has evolved, leaving an indelible mark on culture and spirituality.