The Stanly News and Press (Albemarle, NC)

Features

April 23, 2013

Slate: 15 facts about our planet

It's easy to take Earth for granted, since we see it every day. It becomes — it is — part of life's background.

But when you see the world through the eyes of science, nothing is mundane. We live on the surface of this great giant space-borne water-laden spinning rock, separated from the rest of the Universe beneath a thin veil of nitrogen and oxygen molecules. Even though you're immersed in its influence, what do you really know about the Earth?

Here are some facts about our planet for you to ponder.

1. There are a lot of different ways to measure how long it takes the Earth to go around the Sun, but if you say it takes pi x 10 million seconds, you'll only be off by a half a percent.

2. The Earth has a volume of about one trillion cubic kilometers. Can you picture a cube 1000 meters high, 1000 meters deep, 1000 meters across? Now picture a trillion of them. That's the Earth.

Actually, if you were that big, it would be easy.

3. The Earth has a mass of 6,000,000,000,000,000,000,000,000 kilograms, or, if you prefer, 6 sextillion tons. In pounds, that's actually . . . 0. Nothing. Mass is a measure of how much stuff an object contains, but weight is how hard gravity pulls on that mass. The Earth is in space, orbiting the Sun, so it's in freefall. It has mass, but no weight at all.

4. The Earth isn't a perfect sphere. It spins, so it's a flattened at the poles a little bit. The diameter through the poles is 12,713.6 kilometers (7882.4 miles), but it's 12,756.2 kilometers (7908.8 miles) through the equator. That difference of 43 kilometers is only about 0.3 percent, though, so really we're pretty close to a perfect sphere.

5. Not only is it flattened, but the gravitational forces of the sun and moon (what we call tides) distort its shape even more, pulling bulges out from it. The Earth is lumpy! Out in the deep ocean, the bulge of water due to the sun and moon can have an amplitude (change in height from minimum to maximum) of about a meter (40 inches). The solid Earth deforms due to the tides, too, with an amplitude of roughly 50 centimeters (20 inches). Even the air is affected by tides; though there are several factors that greatly complicate it (like expansion due to heating from the sun during the day, and, simply, weather).

Text Only
Features
  • Uwharrie Players No. 1 Anyone know whodunit?

    So whodunit?
    Forget Col. Mustard, the library and the candlestick, this time it was the drama student in the Jesse F. Niven Center with the bottle of poison.
    At this year’s Uwharrie Players Drama Camp, campers took the stage not just to act, but to figure out who poisoned Gladdis, the talent scout.

    July 21, 2014 3 Photos

  • Kudzu Quiche A Bonus in Study of Invasive Species

    High School students who chose to study invasive species during their week at the National Environmental Summit at Catawba College probably didn't think they'd be baking a kudzu quiche. But they did, and they served it, along with other kudzu creations, at the final festival.

    July 19, 2014

  • Pottery No. 1 Wheel of Clay

    Rome wasn’t built in a day and a potter wasn’t made in one either, Seagrove potter Sid Luck, 69, said at his pottery class at the Niven’s Center Tuesday.

    July 15, 2014 3 Photos

  • Archie Smith Psaltery Sounds

    About two years ago, Archie Smith got into an argument with his table saw.
    As he says, the table saw won.

    June 30, 2014 3 Photos

  • P1160049_zps0528ec83.jpg Jammin' at Junior's

    Benjamin Franklin once wrote: “ … in this world nothing can be said to be certain, except death and taxes.” If Franklin was alive today in western Stanly County, he would need to amend his statement to include “and Friday night jam sessions at Junior Harris’.”

    June 17, 2014 2 Photos

  • KelliePickler_TheWomanIAm_LPCover.png Kellie Pickler set to release album with limited edition vinyl pressing

    NASHVILLE, Tenn. – Black River Entertainment announced the release of a limited edition vinyl version of country music singer/songwriter Kellie Pickler’s critically-acclaimed current album, The Woman I Am.  This is the first vinyl album for Kellie Pickler, and it features exclusive cover art, different from the CD version.

    June 16, 2014 1 Photo

  • wedding (12 of 21).tif Fairy Tales Can Come True

    Once upon a time in Stanfield a little girl was born, but experienced problems during her delivery. Five years earlier, a little boy was born in Georgia with similar complications. Both suffered a brain bleed during child birth and had ventricular shunts placed in their heads.

    June 16, 2014 3 Photos

  • Social networks are the new matchmakers

    WASHINGTON - With studies showing that one-third of married couples started their relationships online, finding romance via URLs is no longer as novel - and creepy - as it seemed when dating sites launched in the mid-1990s.

    June 9, 2014

  • Dive into the World’s Most Diverse Marine Ecosystem when Journey to the South Pacific Arrives at Discovery Place on June 7

    CHARLOTTE – Audiences will be taken on an epic IMAX® adventure through the tropical islands of West Papua and experience one of the most extraordinary places on Earth, when the IMAX film Journey to the South Pacific comes to Discovery Place on June 7.

    June 6, 2014

  • iphone4.jpg Five major new features in iOS 8

    Apple has taken the wraps off its latest mobile operating system, iOS 8, introducing a suite of new features to users aimed at streamlining some of their most annoying daily tasks.

    June 6, 2014 1 Photo

House Ads
Hyperlocal Search
Premier Guide
Find a business

Walking Fingers
Maps, Menus, Store hours, Coupons, and more...
Premier Guide
Featured Comment
Twitter Updates
Seasonal Content
Poll

Will you participate in March Madness?

Yes I watch the games and complete a bracket.
Yes I complete a bracket.
No
     View Results