Answer:
the Galilean Invariance and discovery of Isochronism in pendulums.
Explanation:
Galileo is the first known person who studied the skies in detail with a telescope. He made numerous significant discoveries in astronomy including the Phases of Venus and the four largest moons of Jupiter. His contributions to science include the Galilean Invariance and discovery of Isochronism in pendulums.
Hoped that helped:P
Answer:
i think it is the traditional economic system ...? not sure
Explanation:
It is what power the American people have
