How can i convince my geography teacher that the world is round?

Question

My geography/histoy teacher has arguments with the class about the world is round or flat...........is there anyway that we could convince her that the world is round?

Answer 1

There are a multitude of methods in which any one can prove that the earth is a sphere. These are the most common.

You can launch a rocket to a high altitude and take pictures of the earth (which various government agencies and private groups have already done thousands of times in the past), but that isn't the most practical way. Pictures and videos taken by orbiting satellites and space stations are certainly the most definitive proof that the earth is a sphere.

But if you're not convinced, read on...

You can also observe, with binoculars, ships slowly 'sinking' below the horizon as it sails farther and farther out to the ocean, then watch them come back. They certainly didn't fall off the edge of the earth! You can also sail or fly around the world.

The Greeks discovered that the earth is round by observing lunar eclipses (i.e. when the earth blocks the sun from the moon, casting its round shadow on the moon's surface).

Another method is simultaneously measuring the length of the shadows cast by identical poles perpendicular to a flat surface that is tangential to the earth's radius at various, distant locations. If indeed the earth is round, then the shadows should all vary in length from one distant location to another, which means that the angle at which the parallel rays of sunlight struck each pole varied from one location to another. (recall the alternate-angles theorem from Geometry class) If the earth is flat, then the lengths of all the shadows should be identical when measured simultaneously, since all rays of sunlight that strike the earth are parallel. However, they are not identical, but in fact, varies in such a way that the angles indicate a spherical surface. (This was one of the earliest methods to determine the radius of the earth)

Also, keep in mind the 24 hour time zones. When it is noon in Hawaii, it is approximately midnight in the Middle East and vice versa. How can it be noon and midnight simultaneously? It is certainly impossible with a flat earth and a sun millions of times more massive.

Answer 2

Well, if the world were flat, standing in Denver, you should be able to see Omaha. And you can't. The world curves, and you can't see anything after so many miles. Look it up -- it's true.

(-: Of course, the world isn't *perfectly* round. It's a little flat on top, and kind of bulgy in the middle.

Answer 3

Here is a nasa picture of the earth from space.

He will most likely say - this does not prove that its round, that picture was taken from the top of the flat disc (its turtles all the way down btw)

your response: then where exactly is china in the picture?

http://earthobservatory.nasa.gov/Newsroom/NewImages/Images/modis_wonderglobe_lrg.jpg

Answer 4

Aristotle came up with a very clever way of proving that the world is round. But, hey, I'm not gonna do all the work for you... You should be able to find it from that.

Answer 5

Does she seriously think the earth is flat, or is she using this as an example of how to gather evidence for a debate?

Answer 6

Doesn't she know that the world is round ?! She is a teacher !!

Answer 7

merely tell her in case you stare on the horizon, you will desire to be waiting to work out the continent next to you if it replaced into flat. yet by way of it being around you could purely see a definite distance in the previous visual field is not greater.

Answer 8

Simply ask him to show to u Guys a rectangular Globe available in the market.

Answer 9

Stop being silly, Summar. Get on with your real homework, then get to bed.
.

Answer 10

wow.