Science, the Beginning to the End

Electromagnetism  Electromagnetism is the charge and the forces and the fields accompanied by charge. The two main aspects of electromagnetism is electricity and magnetism. A long time ago, electricity and magnetism were once thought to be different forces but in 1905, Albert Einstein’s theory of relativity portrayed that both have aspects of one common phenomenon; though both electric and magnetic forces are described by different equations and they both behave differently. Electric forces are produced by electric charges in motion or at rest. The magnetic forces are produced by moving charges and they act only on charges in motion. The responsibility of the electric force is the chemical and physical properties of atoms and molecules; it is even responsible for lightning and thunder! The electric force is very strong, it is stronger than gravity! This electric force can act in neutral matter because the forces act in individual components. The electric and magnetic forces ...

Gravity What is Gravity? Well let me tell you, gravity is a force that draws objects to planets or other bodies. Gravity is the force that keeps planets orbiting around the sun. The Earth’s gravity is what makes things fall and what keeps us to the ground. The moon is gravitationally bound to the Earth. In 1666 at the age of 23, Isaac Newton developed the theories of gravitation. He was sitting under an Apple tree when an apple supposedly landed on his head. He wondered why the Apple fell straight to the ground rather than sideways or upwards which helped him discover his law of gravity. He then published his principle that states every body is attracted to other bodies with a force that is proportional to the product of their masses and the distance between them.  Isaac Newton was the first to discover gravity and other scientists discovered more after him!  Gravity is mainly based on mass but also on other aspects as well.  Any object with a mass will have gr...

What was the centre of the Universe? Let’s take a trip back in time, how about the second century A.D when all the people thought that the Earth was the centre of the universe and the sun, the stars, the moons and the other planets orbited around it? Yes, a crazy thought but it is true, that is what people thought at the time. They knew no better to think that; there was no proof to tell them other wise. They observed the sun rising in the east and setting in the west, seeing the stars and planets to appear to move across the sky. Astronemers recorded the movements and Ptolemy created a complex system with circles within circles called epicycles, it was an accurate representation of the celestial patterns. Ptolemy’s model of an Earth centred universe. Now, let’s fast forward a few centuries to the sixteenth century when Nicolaus Copernicus proposed that the sun was the centre of the universe with all the stars, planets and the Earth orbiting around it. The problem was that Ptole...

Science, the Beginning to the End Science, what exactly is it? Yes, we hear the term all the time in school but what do you think when you hear the word science? Well, I thought about chemical reactions with the big explosions, but that is not all. What about the dissagreements between Nicolaus Copernicus and the people with what was the centre of the universe? Don’t forget about the argument with Edwin Hubble and Albert Einstein about if there was a begginning to the universe or not. The scientific discoveries are ever changing and in doing so we can get greater knowledge about our world, our universe and ourselves.