How Does a Magnifying Glass Work?
How Does a Magnifying Glass Work? A magnifying glass makes the words and letters on a page look much larger because of the way in which it bend the rays of light that...
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What Is a Hologram?
A hologram is a physical structure that diffracts light into an image. The term ‘hologram’ can refer to both the encoded material and the resulting image. A holographic...
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What Are Shooting Stars?
If you look up at the sky on a clear night, you may see a “shooting star” flash across the sky, but they are not stars. Shooting stars are bits of space...
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What Causes a Mirage?
What Causes a Mirage? Desert travelers often tell of seeing distant pools of water, only to have the water disappear when they drew near. Those vanishing images are...
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Where Does the Sun Get Its Energy From?
Where Does the Sun Get Its Energy From? Solar energy comes from the energy of atoms that are constantly changing into different forms. The sun looks like a great ball...
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