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Similar ideas to 2. Point Size
A brainchild of France, the metric system, or decimal-based measurement protocol, has not yet been adopted fully by many countries including the United States. This results in a different measurement unit for just about everything.
The U.S. Customary System is an inch-pound system having a...
This is the point in the sky or on the earth that is precisely 180 degrees away from the sun from your vantage point.
The antisolar point is marked by the head of your shadow. Every rainbow is perfectly circular based on this exact position.
With a radius of 2,106 miles (3,390 kilometers), Mars is about half the size of Earth.
If Earth were the size of a nickel, Mars would be about as big as a raspberry.
From an average distance of 142 million miles (228 million kilometers), Mars is 1.5 astronomical units away from the S...
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