The Edmond Sun

Features

April 22, 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
  • McCain 1 House Republicans are more active on Twitter than Democrats

    Your representative in the House is almost certainly on Twitter. Your senator definitely is. But how are they using the social network? Are Democrats more active than Republicans, or vice versa? Who has the most followers on the Hill?

    April 22, 2014 1 Photo

  • Do your genes make you procrastinate?

    Procrastinators, in my experience, like nothing better than explaining away their procrastination: General busyness, fear of failure, and simple laziness are just a handful of the excuses and theories often tossed around. Now researchers from the University of Colorado Boulder have added another option to the list: genetics.

    April 22, 2014

  • VIDEO: Moose charges snowmobile, flees after warning shot

    While snowmobiling in New England, Bob and Janis Powell of Maine were charged by a moose and caught the entire attack on camera.

    April 22, 2014

  • 6th annual run event in Guthrie to benefit Free to Live

    The sixth annual “The See Spot Run” will take place at 9 a.m. May 10 in downtown Guthrie. This 5K, 10K and 1-mile run/walk event benefits Free to Live, a nonprofit animal sanctuary located Logan County. In the past five years of this event “The See Spot Run” has welcomed more than 3,000 runners and raised $30,000 for the Free to Live Animal Sanctuary.
    “The See Spot Run” will offer all participants the opportunity to compete in either the 5K or 10K event in addition to a 1-mile “Fun Run.” Walkers and runners (both two- and four-legged) are welcome and can register directly at www.theseespotrun.com. Visit www.freetoliveok.com. Donations also can be sent to “The See Spot Run,” P.O. Box 292, Guthrie, 73044.
     

    April 21, 2014

  • Touch-A-Truck event draws families to UCO

    Edmond Electric and Edmond Vehicle Maintenance are co-hosting the Edmond Touch-A-Truck from 9 a.m. to 1 p.m. May 17 in the UCO parking lot off Second Street. Touch-A-Truck is a fundraising event that provides children of all ages with the opportunity to experience life-size vehicles and interact with community support leaders like police officers, firemen, construction workers and many more. Families will have the opportunity for a hands-on exploration of many vehicles such as Edmond’s own fire trucks and police cars, an Edmond Electric bucket truck and even a solid waste truck.
    Admission for the Touch-A-Truck event is a suggested $2 donation with the proceeds going to the Edmond HOPE Center. For more information, contact Edmond Electric at 216-7671 or email michelle.gumaer@edmondok.com.

    April 21, 2014

  • Why do wolves howl?

    Of all the myths that dog the wolf, none is more widely accepted than the idea that wolves howl at the moon. Images of wolves with their heads upturned, singing at the night sky, are as unquestioned as a goldfish's three-second memory or a dog's color-blindness (both also myths).

    April 20, 2014

  • Screen shot 2014-04-18 at 4.44.15 PM.png Paint, doodle and sketch: 3 apps for art lovers

    In the absence of a palette of watercolors and a sketchpad, these three apps can fill in as your art supplies of choice.

    April 20, 2014 1 Photo

  • Raw oysters spike U.S. rise in bacterial infections, CDC reports

    Raw oysters, so good with hot sauce, increasingly can carry something even more unsettling to the stomach: A bacteria linked to vomiting, diarrhea and pain.

    April 19, 2014

  • Crazy spring weather brings frantic pleas

    It was a bright and sunny Saturday morning. Tulips were blooming, squirrels were all a’skitter, my allergy-prone nose was running ninety-to-nothing, and workmen were in my yard leaning on rakes at $18 an hour. You might know I’d be anxious to remedy that! They were waiting to get started on spreading 60 bags of mulch, which I was belatedly on my way to reserve and pre-pay so they could pick it up and get started. Rush ... rush ... rush, and oh my aching back.

    April 19, 2014

  • Oklahoma History Center new home for Oklahoma Military Hall of Fame

    The Oklahoma Military Hall of Fame has a new home at the Oklahoma History Center. Created in 1999, the hall of fame, operated by the Oklahoma Military Heritage Foundation, has been housed the past several years at Oklahoma Christian University but there was no available space to display photographs and information on the inductees.

    April 18, 2014