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Is the Force of Gravity Increasing?

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

Comet Hale Bop

Photo: Kevin Dooley (Flickr)

Many pieces of debris strike Earth's atmosphere every single day.

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

  • ramin

    The theory of the increasing of the gravity
    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

  • Ronnie Lee

    Haha haha. It doesn’t work that way. Gravity is directly proportional to size because that which created our planets are the dark stars within each planet. Those stars give the planets gravity magnetics and help maintain the atmosphere . New numbers are giving indications that these dark stars are reacting to age at an accelerated pace. Theories are flying some think the sun was created at the same time as these dark stars inside our planet. These internal stars didnt have the exact same molecular makeup as the i lluminaries . What that means is anyone’s guess. There are some indications that a star of light is cranked with an energy source like we crank our cars. It produces its own energy after its crank via sime system of thermo energy. The question is who cranks the stars ?

  • Raz Campbell

    I’ve never heard of this ‘dark star’ theory/ hypothesis. Could you provide links for further reading?

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