Big Question
E=mc2
It is controversial. Many people still argue that E=mc2 has done more harm than good. They said that E=mc2 led to the dropping of the atomic bomb on Japan, leaving lasting effects. Although Einstein did not physically build the bomb, his name is attributed to it.
On the other hand, E=mc2 has given birth to many other things such as satellites. This is because e=mc2 defines how much energy is needed for a satellite to be orbited around the earth, and how much more to stay in that orbit. E=mc2 is, in a simplified way, energy=mass times the speed of light squared. So, you have the same amount of energy as you have mass, and that energy can travel at the speed of light squared. Satellites have been helpful for many things, and those branch off even further.
For example, without satellites, the GPS would not exist, and you would get lost easily, then the number of planes flying would be drastically reduced as they do not know where they are going. Also, the internet would not be around, so no Google, Facebook, Instagram or any other website or company on your phone. Then, students must refer to books instead of their laptops.
Imagine a world without the internet, so there would be no search engines. Instead, you must trudge to the nearest library and spend hours trying to find a decent book that tells you what you need. What if what you wanted was on loan or was not even in the library? There is no Messages or WhatsApp. You cannot message anyone, stuck in your own little bubble.
E=mc2 has done more good than harm, even though it created the atomic bomb, a lot of scientific and day-to-day things would not exist.
Theory of Relativity
General Relativity
General Relativity lives of the basis of spacetime. Spacetime is the fact that we have a four-dimensional universe, having one temporal (time) dimension and three spatial (space) dimensions. Any physical event happens at some place inside the three space dimensions, it will happen at some moment in time. According to the general theory of relativity, any amount mass causes spacetime to curve, and any other smaller mass follows these curves. Bigger mass causes more curving. This was a new way to explain gravitation, aka gravity. For example, the Sun creates a big dent in spacetimes, and all the planets ‘fall into its hole.’ Picture this; space is bendy. It will bend more under more mass, so it creates a ‘dent’ in spacetime. All the other masses fall into the hole of the big one, but do not crash into it, and thus orbit around the area of large mass. Our solar system works this way. The Sun is a big mass, and all the other planets orbit around it, so, in theory, if you can move the Sun, you can move the whole Solar System. This also occurs on a smaller scale. The moon/s orbit around a planet because it has a smaller mass than it. That is probably why Jupiter has so many moons. Having the most mass in the Solar System apart for the Sun, it has a large dent in spacetime, so moons are ‘attracted’ to it.
General relativity explains gravitational lensing, which is light bending when it comes near a massive object. This explanation was proven correct during a solar eclipse, when the sun's bending of starlight from distant stars could be measured because of the darkness of the eclipse.
Blackholes work in spacetime too. They bend spacetime so much that light cannot escape it. Blackholes are said to be ‘sucking’ in light. What really happens is that the light falls into the gravitational pull of the blackhole.
Also, if you throw, say, a ball at an elephant, the ball will curve towards the elephant, because of the elephant’s mass. If you throw a ball at another human, it will not curve as much because you are lighter.
Special Relativity
‘It only applies to specific situations where the different frames of reference aren’t accelerating. They’re called inertial frames.’ The speed of light in a vacuum is the same for all observers, regardless of their relative motion or the motion of the source of light. Another interesting aspect of special relativity is length contraction. Length contraction is when objects appear shorter, the faster they are moving in relation to the observer. This effect only occurs as objects reach exceedingly high speeds. An example of how objects move extremely fast appears shorter:
If a spaceship 100 meters (about the height of the Statue of Liberty) long were flying by you at 1/2 the speed of light, it would appear to be 87 meters long. If it sped up to 0.95 the speed of light, it would only appear to be 31 meters long. This is all relative. To people on board the spaceship, it would always appear to be 100 meters long, but to you, it would be a shorter length. This is known as length contraction.
Special Relativity helps in the building of things in outer space, defining maximum speeds and at what speed will the object ‘contract.’
Other Inventions
Other inventions of Einstein were the paper towel, laser pointer, and a refrigerator design. Einstein wanted to prove the capillary action with other scientists, and to do this, he made the basis of the paper towel. The capillary action is when you put a folded paper towel so that one end is in one cup and the other end in the other. If the water is dyed, you would see the dyed water flow from one end of the cup to the other.
Although Einstein did not invent the laser pointer, he laid the foundation for it. The weakest version is used for lectures and meetings, etc. “All it took to invent the laser was for someone to find the right kind of atoms and to add reflecting mirrors to help the stimulated emission along.”
The atomic bomb was certainly not Einstein's favourite invention, he himself a peaceful man. But if the two atomic bombs were not dropped to force Japan to surrender, what will happen if the war continued to rage on. Our world as we know it would not exist. Although I am not supporting the construction of atomic weapons, I am sure that the bombs have changed history and stopped the most brutal war that has ever arose.
Why is he notable?
He has contributed many things to humanity, and had also endured many hardships to continue with his ideas to give us what we had today. He was a peacemaker and didn’t want to make the atomic bomb but his name is attributed to it because of his e=mc2 equation. After World War II he joined anti-racist protest and petitions and he tried his best to stop racism across some countries. He is a less known figure in giant actions against racism. He also went around the world, sharing his knowledge of mathematics and physics, in the hope of a new generation, and hopefully one person would do something like he did.
Reference
Please watch the entire clip
00:00-1:15
You can see the Mileva is very focus, and she is carefully following the instructions, and all she wants is a degree. When she is disturbed by Einstein, she walks over and tells Einstein to stop paying his violin.
1:15-1:45
In the video Einstein has clearly shown he wants more than a degree and to follow instructions to do things. He wants to do more than get a degree and pass the class by following boring instructions. He knows the outcome even before the experiment. It's not fun anymore. He wants to know why things happen and always think of a different way to do things that no one else will see. In the short clip, Mileva Maric obviously wants a degree and Einstein doing things the normal way he does things decided to go further, think of more ideas, do more things, which lead to their divorce.
1:45-2:48
Einstein stops playing but he is still curious, staying out of the instruction's boundary. He goes on an experiment of his own, making the heat intense and resulting in a small explosion. Also, he likes to play Mozart to help him calm down, and he is pretty good at playing the violin.
His effect on me and others
His clearly shows that Einstein was an innovator and liked to explore. He has inspired me to try new things and leave my comfort zone more often the usual. He is also my mathematical idol and I have been studying his life, watching his documentaries when I was younger. I found it interesting as he has new ideas and has a different topic every time compared to the monotonous documentaries repeating one another. Einstein’s ideas are fantastic, and although we are in the 21st centaury, we should pay our thanks to the scientist of the 20th. He has inspired other scientists and is the idol of many people. He has encouraged a new generation of scientists as well as strong minded people. His endurance through hardships, for example his divorce or his parents leaving him to study in Zurich, has shown people that is possible to do anything.
“Einstein is a genius. Some geniuses walk into a bright room and turn off the light slowly. The rarest of geniuses jump straight down into a dark room and shine. Einstein definitely did that and more.”
Conclusion
Einstein joined space, time, mass, energy, and physics into one equation along with Newton’s theories as well as Maxwell’s. Einstein has contributed more to the history of humanity more than whatever bad his work has and will ever do. He has left a positive trail behind him, leaving new ideas, a good influence and memories to remember in his wake.
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