Sir Isaac Newton was one of the earth's greatest scientist. He was born on December 25, 1642, according
to the calendar system then in use, called the Julian calendar system. With the Gregorian calendar system
we use today, the date of Newton's birth would have been January 4, 1643. Newton never really had a
chance to know his father because he died when Newton was just three months old, that left the family
with very little money. Three years later his mother remarried and left Newton in his grandmother's care.
As Newton grew older his mother wanted him to become a farmer. However, Newton's stepfather died
several years later and that persuaded his mother to send him to a grammar school to begin his education.
In 1661 Newton attended Trinity College at the University of Cambridge. He received his
bachelor's degree in 1665. To avoid catching the plague, Newton took two years off of school. He
returned to Trinity College in 1668 and then received his master's degree.
Newton ignored most of the curriculum at Trinity in favor of learning more about his own
interests, which were mathematics and natural philosophy. Continuing on his own, Newton investigated
the latest developments in mathematics and the new natural philosophy. Right away, he made discoveries
that were instrumental in advancing his career in science. Some of Newton's most important discoveries
were the law of gravity, the force that pulls objects to the center of the earth. Newton's Law of Gravitation
states that the gravitational attraction between two bodies is directly proportional to the product of the
masses of the two bodies and inversely proportional to the square of the distance between them. Briefly it
means, what goes up must come down. An object dropped will fall at 32.17 feet per second. Newton also
studied optics, what causes color. Newton's experiments with light showed that white light passed through
a prism broke up into a wide color band, called a spe!
ctrum. Passed through another prism the band became a white light again. Next he passed a single color
through a prism. It remained unchanged. From this he concluded that white light is a mixture of pure
Sir Isaac Newton was and still is the earth's greatest scientist.