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When a baseball player hits a home run, how do they know how far the ball traveled?
entertainment.howstuffworks.com/question704.htm
When Mark McGwire hits a home run, the distance the ball traveled is always announced on the scoreboard and on television a few seconds later. How do they know how far the ball traveled?
How Body Armor Works
science.howstuffworks.com/body-armor.htm
Look at hard body armor and other modern armor technologies to see how they can stop bullets.
Why would I upgrade to a synthetic motor oil?
auto.howstuffworks.com/synthetic-motor-oil.htm
Why would I upgrade to a synthetic motor oil? Learn about the pros and cons of synthetic motor oil.
Trig Identities: A Crash Course in Complex Math Concepts
science.howstuffworks.com/math-concepts/trig-identities.htm
Fundamental trigonometric identities, aka trig identities or trigo identities, are equations involving trigonometric functions that hold true for any value you substitute into their variables.
How Many Religions Are There? Which Ones Are Most Influential?
people.howstuffworks.com/how-many-religions-are-there.htm
Religion is as diverse as humanity, with major world religions well-known, yet countless others have existed throughout history.
What Is the Rarest Personality Type?
health.howstuffworks.com/medicine/tests-treatment/rarest-personality-type.htm
Myers-Briggs has established 16 personality types and says that everyone fits into one of them. But some types are more common than others. Which is the rarest of all?
What Does Your Playlist Say About Your Personality?
entertainment.howstuffworks.com/what-does-your-playlist-say-your-personality.htm
The type of music you like isn't all about age and culture - it's about personality, too. Learn more at HowStuffWorks Now.
How Personal Budgets Work
money.howstuffworks.com/personal-finance/budgeting/personal-budget.htm
A personal budget helps you minimize expenses while maximizing savings. Read this article for a step-by-step guide to creating a personal budget.
Traditional Chinese Medicine Disharmony
In the Eastern tradition, practitioners diagnose patients by following patterns of disharmony. Learn about traditional Chinese medicine disharmony.
10 Cutting-edge, Energy-efficient Building Materials
home.howstuffworks.com/home-improvement/construction/green/10-cutting-edge-building-materials.htm
Are you wondering about cutting-edge building materials? Check out this article and learn about 10 cutting-edge, energy efficient building materials.