What Makes the Colors in a Rainbow?
After a shower of rain there is often a rainbow. Rainbows form when the sun begins to shine through the clouds while the air is still filled with raindrops. The...
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How Does an Inkjet Printer Transfer Ink to Paper?
How Does an Inkjet Printer Transfer Ink to Paper? Inkjet printers work by applying tiny droplets of ink to paper. This is usually done using one of two technologies....
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What Is a Solar Panel?
What Is a Solar Panel? A solar panel consists of a group of photovoltaic cells linked together. As their name suggests, these cells convert light (“photo”)...
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How Do I See?
How Do I See? You see with your eyes, but also with your brain. There are many different parts of the eye that help to create vision. First, waves of light strike...
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How Are Stars Formed?
A star like our sun is born inside a huge cloud of gas and dust. A globe of space matter grows as it sweeps up surrounding matter by gravitational attraction. As the...
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