Interesting Facts about Our Very Own Planet!
What do you know?
Most of what we know about the Earth we have discovered in the past century (unsurprisingly). We know enough about the Earth to guess when hurricanes will strike, what the day's temperature will be, what the atmosphere's characteristics are, and much more. There are some things, however, that aren't commonly known by even the most educated people. This Hub will look at a few of the biggest misconceptions about Earth and other obscure facts.
"I wish there was more time in the day!"
Well, there will be! One little known bit of information is the fact that, over the years, our days have gotten longer and longer. To be exact, 1.8 milliseconds each and every century. Granted, this isn't so much of a change as to give someone comparably more time when they are older than what they had when they were younger, but it is occurring. Approximately 65 million years ago, a day on earth composed of just 21.5 hours. Why is this happening? Well, the Earth has days because of its rotation on its axis, one side faces the sun then turns the other way to bring night. The moon, however, is pulling Earth with its gravity (which also causes the tides) and slowing down Earth's rotation in the process. The result: longer days.
The driest place on Earth, Atacama Desert, has recorded rainfall one time in the past 400 years. Which is strange because the edge is right next to the Pacific Ocean, located in North Chile. Rightfully so, its geology has been scientifically compared to that of Mars; not exactly a holiday getaway location.
Hard as Iron!
The Earth has, way beneath the crust (Waaaaay beneath), a molten core of iron. The poles of this core, appropriately the North and South Poles, are located at the geographic poles as well. This magnetic field extends far past the crust, thousands of kilometers, in fact; something uncreatively called the "magnetosphere." Even if magnetic waves and convection motion and electric currents bore you, be glad it exists, as this field shields us from harmful solar wind (and radiation is no fun at all!).
The Final Frontier!
Since you were a little kid, you've been told that the world is covered in 70% water. What they don't often mention is that the ocean depths are relatively unexplored. In fact, less than 10% of the oceans have been explored and mapped by humans! Which is a shame, because it is estimated that at least half, if not most, of all living organisms are found in the sea. We do have somewhat of an excuse, though, most of the ocean is classified as what scientists call "deep sea." Meaning dark, cold, dark, scary, and very dark.
- Little Known Facts About The Ocean - MarineBio.org
Little Known Facts in Marine Biology - MarineBio.org
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- 6 Little Known Facts About the Earth: Earth Science Resources that Support Student Learning | Suite1
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