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Is the Force of Gravity Increasing?

Is the force of gravity increasing? Find out on this Moment of Science.

Is the force of gravity increasing? That’s the question we discuss on this Moment of Science.

Did you know that about 200 tons of debris strike the Earth every day? Although most of this stuff burns up in the atmosphere, the resulting dust still settles and adds to the Earth’s mass. That’s about half a million tons per year! If the earth keeps accumulating mass, doesn’t that mean that the Earth’s gravitational pull has been increasing? After all, gravity is directly proportional to mass, right?

Wrong, while gravity is directly proportional to mass, you need not worry about a sudden increase in gravitational pull.

In metric tons, the earth’s mass is approximately six followed by twenty-one zeroes. Assuming that the Earth accumulates a half a million tons of debris every year, this means that in the sixty million years since dinosaurs existed the Earth would have accumulated approximately thirty trillion tons of meteoric debris. That’s thirteen zeroes. The point is, a number with thirteen zeroes is minuscule relative to a number with twenty-four zeroes. While thirty trillion tons sounds impressive, it is nothing compared to the Earth’s total mass.

  • ruben sandal

    Earths rotation is declining That makes more gravity FYI

  • http://profile.yahoo.com/76T4SQLMOQGFST7FOB2URGG2QY ramin

    The theory of the increasing of the gravity
    http://www.geocities.ws/ramin1102000/bookpage.html
    http://mardfar.webs.com/
    I’ve expressed initials of my theorem in 1986. I sent my first article to different associations of zoology, paleontology, and geology in different countries such as London Zoology Association. My first article was published by “Ettelaate Elmi” magazine in 1996. Then my other fifteen articles was published there. My first book consisting a collection of these articles was printed and published in 2000.

    Publisher:Zeinab Tabriz First Edition: 2000 ISBN 964-7061-4-8

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