# Yahoo Web Search

1. ### why does the number of rotations of the earth in one orbit of the sun should define our age ?

.... To be meaningful, any definition of age has to be able of empiric verification... point is well-taken, the computation of age does not have to depend upon the passage of the earth around the sun.

10 Answers · Science & Mathematics · 04/11/2012

2. ### what is rotation ?????????????

rotation is just another word for spin. all the planets spin on their...word meaning the center line of their spin. Think of a rod going through the Earth through the north and south pole. the ...

3 Answers · Science & Mathematics · 06/06/2009

3. ### What is the definition of rotation in the simplest words you know?

...a line called an axis.If the axis of rotation is within the body, the body is said to rotate upon... circular motion about an external point, e.g. the Earth about the Sun, is called an...

5 Answers · Education & Reference · 15/03/2010

4. ### Badastronomy confusion over leap seconds and slowing rotation of the earth ?

... that the earth 's rotation is not uniform. In the long run, the earth gradually slows down... as a certain fraction of the length of the year 1900... up with a physical definition of the second (...

7 Answers · Science & Mathematics · 15/01/2008

5. ### Rotation of the earth ?

... a change of only ...friction, both during the mass-acceleration...permanent change in rotational speed is... effect on Earth 's rotation can...wikipedia for the definitions and equations...

7 Answers · Science & Mathematics · 03/11/2006

6. ### i don't believe that, the rotation of the earth gives us day and night.?

...since the sun doesn't orbit the Earth ....I'd have to say that the rotation of the Earth is what gives us our day and night. BTW...what's your definition of partition theory...and how does that correlate to the day and night of Earth ...

4 Answers · Science & Mathematics · 03/11/2009

7. ### What is the definition of the Universe?

...measure a day by its rotation on its axis as it travels around the sun, etc.). His/her "language of time," so-to-speak... & definitions , including those...

6 Answers · Science & Mathematics · 02/02/2010

8. ### rotational period of the earth ?

...two aren't the same because as the earth spins on its axis, it... along in its orbit around the sun. Wikipedia at the link...time values for the various definitions of a rotation .

12 Answers · Science & Mathematics · 13/11/2007

9. ### what is the gravity of earth ?

..., other factors such as the rotation of the Earth also contribute to the net acceleration. The ...surface, known as standard gravity is, by definition , 9.80665 m/s2 (32.1740 ft/s2). This quantity...

2 Answers · Science & Mathematics · 13/11/2012

10. ### what is the definition of earth 's revolution ?

...also rotates about its axis thereby exposing various parts of the earth 's surface to radiation from the sun at different times leading to different...

10 Answers · Science & Mathematics · 29/04/2008