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# Posts tagged equator

#### May 7, 2014

A time-lapse image of the night sky in the norther hemisphere reveals that the North Star doesn't move very much.

### What Makes The North Star So Special?

On a dark night, you can see thousands of stars with the naked eye. What makes the North Star stand out above the rest?

#### January 17, 2013

The equator is a circle, which we know has 360 degrees. Each degree is divided into sixty minutes, which are not the same as the minutes on your watch.

### What Is The Difference Between A Mile And A Nautical Mile?

A Moment of Science would like to clarify a small point of navigation: the difference between a mile on land and a nautical mile.

#### May 31, 2012

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Does the wind have anything to do with the rotation of the earth?

### A Three Foot Orbit

Science tells you that you weigh less standing on the equator than you do at the north pole. Learn more on this Moment of Science.

### The Equatorial Weight-loss Program

You've tried all sorts of diets, you work out regularly, and you avoid fatty foods, yet still nothing seems to take off those extra pounds eh?

### Why the Wind Blows

We will answer that question, with a question. How fast does the earth turn?

### Haul Me Up or Haul You Down?

We’ve been imagining that we’re sitting in a geostationary satellite. That’s a satellite that orbits the equator at the same speed and direction as the earth turns. That means it’s always over the same spot of land, as if it were floating in the sky 22,500 miles up. We let down a rope to pull up some supplies. Will this work? Learn more on this Moment of Science.

### A Wider Rope, Scotty

Are you familiar with a geostationary satellite? That’s a satellite that orbits the equator at the same speed as the earth turns, so it’s always over the same spot of land, 22,500 miles up. Could you let down a rope and pull up some supplies? Learn more on this Moment of Science.

### Rope Me Up, Scotty

A geostationary satellite orbits the equator in the same direction and speed the earth turns. That means the satellite stays stationary with respect to the ground. It seems to be hanging in mid-air, if by mid-air, you mean 22,500 miles high. Learn more on this Moment of Science.

### Miles High

What is the highest point on earth, highest meaning the farthest away from the earth’s center? Learn more on this Moment of Science.

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