Galileo changed the world
The great Aristotle got some but not all of his theories wrong. He also changed the world like many scientists. Galileo disproved Aristotle's theories on free fall and flotation theories. Aristotle said that heavier objects fall faster than lighter objects. Galileo tested this by using an incline plane, which is a piece of wood,at slant a with wires running across it. every time galileo rolled a heavy and a light ball down the contraption, the wires would make a sound. many people think that galileo dropped two balls from the tower of pisa,but there is no physical evidence . Gravity acts the same with every thing. Now Aristotle idea on flotation is wrong because an object has to be less dense to float on water. Aristotle's theory was that shape affects the float activity. Galileo did not just prove people wrong he also reinvented the telescope and made it a lot better. His initial version only magnified 8x but was soon refined to the 20x magnification he used for his observations for Sidereus nuncius(short astronomical treatise) . It had a convex objective lens and a concave eyepiece in a long tube. The main problem with his telescopes was their very narrow field of view, typically about half the width of the Moon.. He was the first to study the sky and solar system with it. He is well known for his reinvention of the telescope but his first invention that was recorded is the thermometer. People needed to know the temperature inside and out. atho the thermometer he invented could only show something was getting hotter but it did not measure all the data that a thermometer can.
Another invention of his that changed the world is the pendulum. I know it doesn't sound like much but it helped record the pulse of patients at the doctor. He saw a lamp swinging and measured it with his pulse and began testing the pendulum on himself. the pendulum was used to time different interviews and thats...