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Rhodium: Earth's Rarest and Most Expensive Precious Metal
science.howstuffworks.com/rhodium.htm
Discovered in the early 1800s from a chunk of smuggled platinum ore, rhodium is the most valuable precious metal on the planet today, used mainly for keeping car emissions in check.
Summer-grade Versus Winter-grade Fuel
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/summer-fuel1.htm
What's the difference between summer-grade fuel and winter-grade fuel? If summer-grade fuel is so great, why don't we use it year-round?
31 Types of Hats for Literally Every Style and Occasion
lifestyle.howstuffworks.com/style/fashion/types-of-hats.htm
Hats! They’re stylish, they're practical and they've been around for thousands of years. But how many types of hats can you name?
Libra Moon: Traits, Personality, and Compatibility
entertainment.howstuffworks.com/horoscopes-astrology/libra-moon.htm
Curious about the Libra Moon? Discover how this moon sign shapes your emotions, relationships, and inner balance. Uncover the secrets behind Libra Moon’s charm and what it reveals about your true self!
How Semiconductors Work
electronics.howstuffworks.com/diode.htm
Semiconductors form the heart of modern electronics. Learn about semiconductors, silicon, doping, diodes and other fascinating technologies.
What Does 'BPA Free' Mean and Why Does It Matter?
science.howstuffworks.com/environmental/green-science/bpa.htm
The chemical BPA (bisphenol-a) often found in consumer goods, may be linked to human health problems. Learn more about BPA in polycarbonate plastics.
How to Organize a Closet in 5 Easy Steps
Three words -- "organizing your closet" -- might strike fear in a lot of people. But having a clean storage space doesn't have to be a complicated process.
What is the difference between the Prius and the Prius Touring?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/prius-vs-prius-touring.htm
What is the difference between the Prius and the Prius Touring? Learn about the difference between the Prius and the Prius Touring at HowStuffWorks.
How does diet affect body odor?
health.howstuffworks.com/skin-care/information/nutrition/diet-body-odor.htm
Does diet affect body odor? Are you really what you eat? Learn about food and your skin and if diet affects body odor at HowStuffWorks.
What's a shark's "yummy hum"?
animals.howstuffworks.com/fish/sharks/shark-yummy-hum.htm
A yummy hum is a sound that dying fish emit -- it's like a dinner bell to a shark. Read about the theory of the yummy hum and how it beckons sharks.