Stanford physicists have put a modern twist on Galileo's
classic 16thcentury experiment of dropping objects from the
Leaning Tower of Pisa.
Instead of dropping balls of wood and iron to prove that
gravity acts equally on objects made of different materials, as
Galileo did, the Stanford researchers directly compared the
force of gravity acting on individual atoms to the force it exerts
on an object like a baseball that contains billions of atoms.
Their conclusion: The force of gravity is virtually identical at
the atomic and the everyday, "macrosocopic" levels.
[continues]
Marcelo Puhl
mark@plug-in.com.br
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