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Thanks for saying what I was thinking. People just don't realize that if the ISS didn't have a "forward motion" of 17,000 MPH, it would fall like a stone (OK, technically, it IS falling like a stone!). Didn't the author take Physics 101? It's Newton! You just don't get more basic than that! How much do you weigh 220 miles above the Earth's surface? About the same as you do here on the ground!