The laws of gravity as expressed by Sir Issac Newton were determined before Dr. Louis Pasteur discovered penicillin.
Alexander Flemming first discovered, cultured and used penicillin
thousands of years before Columbus discovered America (go to answers.com)
When an apple hit his head and he discovered gravity! It certainly knocked some sense into him.
Isaac Newton was 44 years old when the Law of gravity was published in the book Principia.
Guns were invented by humans, so no one discovered it. Discovery is when a person learns something about nature without the influence of humans. For example, we discovered friction, gravity, reflection, etc. just by feeling, seeing, etc., and not by inventing. Sir Isaac Newton noticed gravity when an apple fell from a tree. You can witness friction by rubbing your hands. None of these two actions directly require inventions.
the circulation of blood, electricity, chromosomes, and gravity.
chromosomes
Isaac newton discovered or formulated the laws of gravity. The laws exist and are a part of nature they were there before he discovered them, but yes it was he who wrote them down.
Gravity was discovered long before Newton was around. Newton just postulated gravities relationships with acceleration and mass.
Gravity was discovered in 1650 by Sir Isaac Newton.
he discovered gravity he discovered gravity
England 1928
Because children have weak immune systems unlike adults. So since there were no antibiotics, children would die faster then adults.
Before antibiotics were discovered, sulfa drugs were used to fight infection. They are still used prophylacticly for some conditions. For many years they were used to stop recurring bladder infections and some doctors used them to stop recurring infections among asthmatics.
This is derived directly from the general Law of Gravitation, discovered by Newton. I don't think this was discovered independently before the Law of Gravitation was known.
Isaac Newton discovered gravity with the help of an apple.
newton discovered gravity.. he was curious to know the reason behind the falling apple from the tree