Gravity is the force that pulls everything to Earth. Galileo showed that gravity makes all objects fall equally fast. When he dropped a light ball and a heavy ball from the leaning Tower of Pisa, they hit the ground at the same instant.
About 400 years ago an Italian scientist called Galileo is believed to have dropped a cannon ball and a musket ball from the Leaning Tower of Pisa in Italy. He watched them take the same time to fall to the ground. Galileo proved that gravity moves ^things along at the same speed no matter how large or small they are. About Galileo - galilei
Who first sailed around the world ?
In 1519, a fleet of five ships set off from Spain to sail around the world. Their captain, Ferdinand Magellan, was killed on the way. Just one ship and 18 men completed the journey. It had taken three years.
sailBoat Pictures
Via Funnyhub
How do fish breathe under water ?
Fish have to breathe to stay alive, just as you do. But while you breathe oxygen from the air, fish take it from water. As they swim, fish gulp in water and push it out through slits called gills on their heads. Oxygen passes from the water into the fish's blood inside their gills.
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