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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 Your Immune System Works
health.howstuffworks.com/human-body/systems/immune/immune-system.htm
Inside your body there is a mechanism designed to defend you from millions of bacteria, microbes, viruses, toxins and parasites that want to invade your body. Find out how the human immune system works.
How to Grow and Care for Crocuses, Spring's Early Bloomers
home.howstuffworks.com/crocus.htm
Crocuses are a cheery sign of spring, and the tiny, colorful flowers are easy to grow. Here's how to do it.
The Fierce Fashion History Quiz
play.howstuffworks.com/quiz/fashion-history-quiz
Dress has always been used as both a statement of belonging and individuality. But what were some of the earliest "fashions?" Journey through fashion history with this quiz at HowStuffWorks.
What are the healthiest types of lettuce?
health.howstuffworks.com/wellness/food-nutrition/facts/healthiest-types-of-lettuce.htm
Do you know the healthiest types of lettuce? If you are going to reach for the green, choose from this list of the healthiest types of lettuce.
What Is Sassafras and Is it Safe?
recipes.howstuffworks.com/food-science/sassafras.htm
HowStuffWorks looks at the many uses and potential dangers of sassafras.
Shinzo Abe's Enduring Legacy Will Last in Japan for Generations
history.howstuffworks.com/historical-figures/shinzo-abe-assassination-news.htm
The world is in shock after the assassination of Japan's longest-serving leader, former prime minister, Shinzo Abe. Who was Abe and what will be his legacy?
How Idle-stop Systems Work
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/idle-stop-system.htm
Idle-stop systems alleviate the fuel economy problems of sitting in traffic. Learn how idle-stop systems work and how common they are on new cars.
Black Men Were Cowboys Before It Was Cool
history.howstuffworks.com/american-history/black-cowboys.htm
In the early 18th century, Black cowboys were the only cowboys in the West. That's because white men didn't want to do the work. We're telling their story.
18 Home Remedies for Memory Problems
Learn simple, effective home remedies for memory loss that work -- everything from simple tricks to essential nutrients.