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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.
Inside a Bathroom Scale
home.howstuffworks.com/inside-scale.htm
A bathroom scale can be found in most homes, but have you ever wondered what was inside? Check out these pictures of the inside of a bathroom scale.
Is Sacred Geometry Related to Science or Is It Simply Beautiful?
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/sacred-geometry.htm
Sacred geometry, a term that immediately evokes curiosity, refers to geometric forms and patterns that appear throughout nature, art and architecture.
How Many Advanced Mathematical Symbols Do You Remember?
play.howstuffworks.com/quiz/how-many-advanced-mathematical-symbols-do-you-remember
We all know our pluses and minuses, but how about the symbols for population mean and the golden ratio? What about the Euler-Mascheroni constant and radians? If you know your advanced math symbols, take the quiz and show your stuff!
How Pendulum Clocks Work
electronics.howstuffworks.com/gadgets/clocks-watches/clock.htm
Pendulum clocks are fairly complicated and may seem confusing, but they rely on simple forces. Find out how pendulum clocks keep accurate time.
How the Chrysler ME Four-Twelve Works
auto.howstuffworks.com/chrysler-concept.htm
What has a better power-to-weight ratio than an Enzo Ferrari and enough room for a normal person to sit comfortably? It's the Chrysler ME Four-Twelve concept car (that's right, we said Chrysler). Check it out.
Inside an Electric Screwdriver
home.howstuffworks.com/inside-sd.htm
An electric screwdriver is an interesting device that combines a lot of technology into a compact package. Take a look inside an electric screwdriver.
Ancient Babylonian Tablet May Show Early Trigonometry, But Some Experts Are Dubious
science.howstuffworks.com/math-concepts/babylon-tablet-plimpton-322-trigonometry.htm
A reinterpretation of an ancient Babylonian tablet shows that trigonometry might be 1,000 years older than thought. But there's some disagreement.
Transmission Quiz
play.howstuffworks.com/quiz/transmission-quiz
A car's transmission enables the engine to provide a wide range of output speeds - without it, you'd be limited to just one gear. But how much do you know about this vital piece of automotive hardware? Test your knowledge of both automatic and manual transmissions by taking this quiz!
How Gasoline Works
science.howstuffworks.com/gasoline.htm
Without gasoline, the world as we know it would grind to a screeching halt. The U.S. alone consumes well over a hundred billion gallons of gasoline per year. Learn all about this vital fuel.