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How to Use the Unit Circle in Trigonometry
science.howstuffworks.com/math-concepts/unit-circle.htm
A unit circle is an important part of trigonometry and can define right angle relationships known as sine, cosine and tangent.
Do you know which of these is bigger?
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We live in a world filled with things of all sizes. Some things are super-sized -- other things are simply teeny. Can you pick which of the following is bigger?
Test Your Knowledge Of Geometric Shapes With This Quiz!
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As we moved from kindergarten to high school, we learned about the different shapes, but how well will you be able to identify them from a picture? Let's find out!
How do motion sensing lights and burglar alarms work?
home.howstuffworks.com/home-improvement/household-safety/question238.htm
How can motion-sensing lights detect your presence, and what prevents them from seeing you when you're standing still? It all comes down to the movement of light.
How NASA Planetary Protection Works
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What if your job were to protect life in the galaxy at all costs? Read about NASA's Planetary Protection program at HowStuffWorks.
What is a passive house?
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What is a passive house? Find out what a passive house is in this article from HowStuffWorks.
10 Types of Roofs for Homes, Commercial Buildings and More
home.howstuffworks.com/home-improvement/construction/materials/types-of-roofs.htm
The roof of a house is not just a protective covering; it's a defining element that contributes to the overall aesthetics, functionality and energy efficiency of a structure.
Unleashing the Fiery Spirit: Exploring the Essence of Aries, the Trailblazing Zodiac Sign
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/aries-element.htm
Aries element is fire, symbolizing passion, leadership, and courage. Discover how Aries' fiery nature fuels their bold actions and energetic personality.
How much do you know about summer solstice?
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From its pagan and its religious roots to the mystery of Stonehenge and other ancient sites, the summer solstice has meant many things to many people on this planet. See how much you know about when and why the summer solstice happens, and why it's been considered a magical time of the year.
Can You Answer These Questions About the Year 2005?
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2005 was a difficult year for many and all over the world. Yet, others prospered! What do you remember about it? Let's test your knowledge.