get a better picture of how gravity changes over Earth there are
two Gravity Recovery and Climate Experiment (GRACE) satellites.
Using spatial resolution of 400 km they have discovered that water
masses peak seasonally in water sheds. Check out the GRACE
Web site and learn the real story of gravity density on the
you were to carry the weight of the world on your shoulders, how
heavy would it be?
physicist C. V. Boys calculated the weight of the world to be 6.10**24
What is the speed of gravity?
Newton's theory of gravity states that all
masses pull all other masses
instantaneously. However, in 1905 Einstein published his famous
special relativity which stated that the speed of light is the fastest
any energy can go -- 299,792 km/sec is tops. So who is right? Is
it Einstein or Newton?
What makes juggling possible?
McKinley, K-2; the oceans; the seas; the sea floors; the buildings;
the grass; and everything else that contributes to the total mass
of the earth. All that mass creates gravity. Without gravity what
goes up keeps going.
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