That each swing takes the same amount of time.
He invented (or at least constructed the first known working version of) the telescope.
yes
because it could help us see thing from the outer space and it can help you check things about planets
One thing Galileo was famous for was studying Jupiter and its moons.
Galileo's theory of motion is principle of inertia. It is basically the same thing as Newton's law of motion since he based it on Galileo. It says that an object will remain still or keep moving in constant speed unless affected by another force.
Telescope Actually, Galileo did not invented the telescope. But he did build his own, improved telescope. His was the 1st telescope strong enough to actually view the planets and stars in space. The first telescope (called a spy glass) used one convex lens and one concave lens. Galileo perfected it by using two convex lenses. Galileo also invented the Geometric compass which was use for calculations and for measurements The pendulum clock was another invention Galileo worked on but it was invented by Christian Huggens im not sure but i also think he invented the thermometer and barometer but u should search for it
The moons of Jupiter.
Im trying to figure out the same thing
the first thing discovered was life and all it's creations
Yes, he was married. He had a family in florence, which i do believe is in Italy today, but there was no such thing as Italy when Galileo was alive.
Galileo lifed from 1564 to 1642. The Middle Ages ended about 100 years before he was born.
It was mostly a political thing. Based on his observations, he discovered that what most people believed wasn't true... but since so many important people believed it, and weren't open to the new information, it almost came down to who was more important and more popular, rather than who was right.