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How Fast Does the Earth Rotate?

by Fraser Cain, -- May 20, 2013

You might be surprised to know that a spot on the surface of the Earth is moving at 1675 km/h or 465 meters/second. That’s 1,040 miles/hour. Just think, for every second, you’re moving almost half a kilometer through space, and you don’t even feel it.

      From: Wikipedia, the free encyclopedia

So to recap, we are spinning around the Earth's axis, this fast:

1,675 km/hr

   0.5 km/sec

1,040 mi/hr  

1,040 mi/hr  div 3600 sec/hr = 0.3 mi/sec

But wait there's more ...

Ask an Astrophysicist

by David Palmer, -- October 28, 1997

How fast does the Earth move around the Sun? [...]

Earth's average distance to the Sun is 150,000,000 km (93 million miles), therefore the distance it travels as it circles the Sun in one year is that radius x 2 x pi, or 942,000,000 million kilometers in a year of 24 hours/day x 365 1/4 = 8,766 hours so you divide to get 107,000 km/h or about 67,000 mph.

      From: top-10-facts-about-earth-and-its-orbit

So to recap, we as a passenger on Earth are moving around the sun, on average, this fast:

107,000 km/hr

107,000 km/hr  div 3600 sec/hr = 30 km/sec

 67,000 mi/hr

 67,000 mi/hr  div 3600 sec/hr = 19 mi/sec

But wait there's more ...

Does The Sun Move?

by Jerry Coffey. -- March 22, 2010

The Sun and the entire solar system orbits around the center of the Milky Way galaxy. The average velocity of the solar system is 828,000 km/hr.

The diameter of the Milky Way is about 100,000 light years and the Sun is located about 28,000 light-years from the Galactic Center.

      From: -- Measuring the Universe

So to recap, we as life forms in the Milky Way galaxy, are rotating around the center of our galaxy, about this fast:

828,000 km/hr

828,000 km/hr  div 3600 sec/hr = 230 km/sec

      since 1 km = 0.621371 miles

828,000 km/hr * 0.62137  =  514,494 mi/hr

514,494 mi/hr  div 3600 sec/hr = 143 mi/sec

But wait -- you guessed it -- there's more ...

Facts About the Milky Way

by Nicholos Wethington, -- July 11, 2009

The Local Group is calculated to move relative to the CMB [Cosmic Microwave Background radiation] at about 600 km/s (2,200,000 km/h), which is pretty darn fast!

      From: -- Source: Royal Astronomical Society. Milky Way8217s Companions.

So to recap, we as riders in our Milky Way galaxy, are moving relative to the "static" echo of the Big Bang, at about this mind-numbingly speed:

2,200,000 km/hr

2,200,000 km/hr  div 3600 sec/hr = 611 km/sec

      since 1 km = 0.621371 miles

2,200,0000 km/hr  * 0.62137 = 1,367,014 mi/hr

1,367,014 mi/hr  div 3600 sec/hr = 380 mi/sec

      From: -- "The Great Attractor"

So assuming all these 4 motions are "additive" -- how FAST are we moving, when we "combine" them ALL together?

The grand total of your current "universal" speeds (daily, yearly, galactic, the local slide towards the "great attractor") is roughly:

3,136,675 km/hr

           872 km/sec

 1,949,548 mi/hr

           542 mi/sec

(... give or take a few blinks of the eye.)

Don't look now, but you're moving much, much faster than the orbiting space station:  

It travels at an average speed of 27,724 kilometres per hour (17,227 mi per hour).

So why in the world, aren't we suffering from constant sea-sickness?

Good question.  Here's a good answer:

How Fast Does the Earth Rotate?

by Fraser Cain, -- May 20, 2013

The ground feels firm and solid beneath your feet. Of course, the Earth is rotating, turning once on its axis every day. Fortunately gravity keeps you firmly attached to the planet, and because of momentum, you don’t feel the movement -- the same way you don’t feel the speed of a car going down the highway.

SOOOOO ... Happy Trails, my fellow travelers ... remember to stop once in a while, and enjoy the View.

      From: Ancient Timekeepers, Part 1: Movements of the Earth

Before someone, or something, Slams on the Brakes!

"You are a child of the universe no less than the trees and the stars; you have a right to be here, and whether or not it is clear to you, no doubt the Universe is unfolding as it should."
--The Desiderada

Originally posted to Digging up those Facts ... for over 8 years. on Sun Apr 20, 2014 at 07:02 PM PDT.

Also republished by SciTech.

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