What Is a Meteorite?
What Is a Meteorite? Meteorites begin as bodies of matter traveling at great speed through space. In the solar system there are numberless such bodies, usually chunks...
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Why Do Planes Fly in a Curve and Not a Straight Line to Their Destination?
Why Do Planes Fly in a Curve and Not a Straight Line to Their Destination? A Boeing 747 burns over 10 tonnes of fuel every hour and much more when it is climbing up to...
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Are Days and Nights Getting Longer?
Are Days and Nights Getting Longer? The summer solstice that falls this year on June 21 marks the longest day of the year in the Northern Hemisphere, sunlight-wise....
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What Is Global Warming?
Global Warming is the increase of Earth’s average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil...
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How Far Is It to the Center of the Earth?
How Far Is It to the Center of the Earth? If you could drill a hole to the center of the Earth, you would find it measured about 3,958 miles (6,371 kilometers). The...
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