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Physics

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How Are Shadows Formed?

Before the invention of the clock, people determined time by the length of the shadow. What are shadows? How are shadows formed? A shadow represents an absence of light. When an object blocks the passage of light, the other side of that object will get less light, forming a dark shape of the object behind …

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How Do We See Colors?

Seeing color is one of the most beautiful gifts of nature.

Colors make our world bright and cheerful. Colors are everywhere: green in leaves, blue in our sky, and brown in soil. Animals use colors to attract mates (peacocks) or warn away their predators (frogs). For us, a world without colors is unimaginable. But how do we see colors? Table of Contents The word “color” reminds …

How Do We See Colors?

Seeing color is one of the most beautiful gifts of nature.

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Electronics

Learning About Electronics: How You Can Get Started

Your child belongs to a generation born into advanced technology. Compared to those of us who had to live with dial-up connections and CDs before eventually entering the era of the Netflix and Amazons of this world, they will be growing up around even faster and more advanced technologies that have endless possibilities. So if …

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what is virtual reality

What Is Virtual Reality? 

Virtual Reality If you love science fiction or video games, you may already know about “virtual reality,” or VR. With virtual reality, you can jump to the other side of the planet in an instant, experience what it’s like to fly, and even explore pretend worlds. In a virtual world, you could go surfing with …

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