Sat, 27 Nov 2004

Why fly eastward to reach the U.S.?

My sister lives in Minnesota, the U.S. The time difference (between there and here) is 12 hours. So, Minnesota is on the opposite side of the globe.

My sister told me that the plane that take her to the U.S. always goes eastward. The plane takes off from Jakarta, and then travels northward, to some place like Taiwan or Japan. I wonder, why the plane takes that route.

As we know, the Earth moves on its axle eastward, toward the sunrise. If the plane goes eastward, then it will take more time to reach Minnesota, because the Earth also moves eastward.

In my opinion, it would be faster for the plane to travel westward, since the earth moves eastward.

If we take a globe and make it turn eastward -- and suppose we have a miniature plane placed at Jakarta on the globe -- and then we imagine that the plane takes off, westward, the plane will arrive at the destination more quickly, because, while the globe turns eastward, the plane goes westward.

I wonder, would the plane use more fuel if it traveled westward as it flies against the earth's movement?

RUDY HENDRA, Bandung