Gravity Essay -- essays research papers

staidness is really an un getn force. Wecan define it as a theater of influence, andthat it effects the entire existence of theuniverse. Some people think that solemnessconsists of particles called gravitons,which travel at the speed of light. The altogether thing we do know is how sobernessoperates in different parts of our universe.Without temperance, there would be no spaceand time. on that point is a legend that says that Galileoonce dropped two objects false the LeaningTower of Pisa to show that the heavier ofthe two objectsdropped faster. If a feather and buffetingwere the two objects he used thenobviously the hammer would profit theground showtime. This is due to air resistance,which is the force air exerts on a movingobject. This force acts in the oppositedirection to that of the objects motion. Inthe trip of a falling object, air resistancepushes up as gravity pulls down, whichcauses the object to slow down. WhenGalileos experiment was repeated on themoon, the ha mmer and the feather hit theground at the exact same time. This is dueto the situation that the moon has no atmosphere.Therefore, air resistance doesnt exist onthe moon. Also, the aggregate of airresistance on an object depends on thespeed, size, practice, and density of theobject. The bigger the surface area of theobject, the greater the amount of airresistance on it. This is why feathers,leaves, and sheets of paper fall moreslowly than pennies, acorns, andcrumpled balls of paper. There is another legend that states thatwhen Newton was lying against a tree inan orchard, he was struck on the head byan orchard apple tree. He wondered what provided thespeedup for the apple to fall to theground. Was this a force of the earth onthe apple? If so, then the apple must exerta force on the earth according toNewtons law of action/ response forces.Newton applied this theory unto theplanets, which orbit the sun. He found bystudying astronomical data, that the forcethat held the earth in orbi t virtually the sunwas the same force that drew the appletoward the earth. This was theforce of gravity that is given by this scaryformulaF = Gm1*Gm2gravity _______r2F equals the force in Newtons, G equalsthe gravitational uninterrupted which is 6.67 *10-11 Nm2 kg2, m1 and m2 equalthe mass of individually body in kilograms, andfinally, r equals the distance between the2 bodies in meters.If all of this i... ...forthe electronic revolution of the twentiethcentury. Electromagnetic waves not onlyrevolutionized our lives, but also ourknowledge of the universe. Astronomersgradually opened the electromagneticspectrum, first using visible light and thenradio, x-rays and gamma rays. Each newfoundpart of the spectrum provided us withdramatic new insights into the universe.Einstein predicted gravitational waves in1916. They have not yet been directlydetected on earth, although astronomersJoe Taylor and Russell Hulse veritable the1993 Nobel Prize for proof of theirexistence, by showing t hat a star administration is losing energy by producinggravitational waves.Gravitational waves are a wholly newspectrum. If electromagnetic waves let ussee the universe, gravitational waves givelet us hear the universe. They will provideus with a new sense, the sense of hearing,with which to explore the universe. Gravity is a very involved subject, butscientists are learning more and moreabout it as time goes on. Contributionsfrom people such as Newton and Einsteinhelped shape the way we see thingstoday. Without them, no telling what kindof misconceptions we all talent believe intoday.