- Galileo was born in pisa, 1564.
- He was considered the father of modern science.
- Galileo discovered stars around Jupiter now called the galleon moons.
- He claimed that small and large objects travel at the same time (he was right). He also claimed that the earth orbits the sun and that the earth was not the centre of the universe, this challenged the churches so they put him in prison for the rest f his life.
- In 1581 He began studying at the university of Pisa.
- He discovered the period (time) which it takes to swing backwards and forwards and does not depend on the pendulums arc.
- This eventually led to the creation of the pendulum clock.
- Galileo died in 1642.
This diagram shows how the pendulum swings in an arc around an axis.
http://www.tutorvista.com/content/physics/physics-i/wave-motion-sound/restoring-force.php