I want to start with a quote from a movie i love. “But now I’m not so sure i believe in beginnings and endings. There are days that define your story beyond your life.”(Viewers will know which movie it is from the symbol :))
What is the time? Time is the apparent progression of events from past to future. Events that occur in an apparently irreversible, measured or measurable period. BUT this description of time changed in 1905 with Albert Einstein’s theory of special relativity.
In 1865, James Clerk Maxwell demonstrated that light is a wave with both electrical and magnetic properties. In this process, it was understood by physicists in the late 19th century that the speed of light was the upper limit speed for all known particles. In 1887, A. A. Michelson and E. W. Morley discovered another property of light with the famous experiment they carried out. According to this experiment, the speed of light was dependent on neither the source nor the observer, it was always measured at the same value regardless of the conditions. Physicists have not been able to elucidate this state of light for years. Until he came up with the Special Theory of Relativity.
Theory of Special Relativity
According to the theory, all beings and physical events of existence are relative. Time, space, and motion are not independent of each other. On the contrary, they are all relative events that are connected to each other. The special relativity theorem makes Newton’s concept of absolute space-time meaningless by stating that distance and time can change depending on the observer. Space and time can be perceived differently depending on the observer. An object in motion experiences time dilation, meaning that when an object is moving very fast it experiences time more slowly than when it is at rest. Einstein liked to explain his theories using thought experiments, so let’s try one. For example, when astronaut Scott Kelly spent nearly a year aboard the International Space Station starting in 2015, he was moving much faster than his twin brother, astronaut Mark Kelly, who spent the year on the planet’s surface. Due to time dilation, Mark Kelly aged just a little faster than Scott “five milliseconds,” according to the earth-bound twin. Since Scott wasn’t moving near lightspeed, the actual difference in aging due to time dilation was negligible.
So what happens if one of these twins move at speed close to the speed of light?
Until now, their time has always progressed at the same pace and they have aged at the same rate. Let’s put Scott Kelly in a spacecraft and send him into space at 99.9% of the speed of light. Let it travel him to a star 12 light-years away when they both 30 aged. Thus, Scott would have experienced just about 13 months of time and be 31 years old. However, Mark who lived on Earth would have waited for 24 years to see his twin and would be 54 years old when Scott returned.
|The equation of time dilation, 1 over the square root of the quantity (1 – v squared over c squared) can be used to calculate the times both man would experience.|
Neither twin experiences any strangeness with their watches as one moves closer to the speed of light – they both experience time as normally as you or I do. It’s only when they meet up and compare their observations that they will see a difference – one that is perfectly defined by the mathematics of relativity.
Let’s discuss another question, Why is there a future and a past?
‘ Is Time Always Flows Forward ? ‘
In fact, time is not linear as we thought until now.
Based on the idea of “Block Time” within the scope of Quantum Theory; Unlike Newtonian physics, time cannot be said to flow in a straight line. According to quantum, the concept called time can be a structure with a physical dimension. Past, present and future are inseparable according to the law of entanglement. We humans try to make a temporal diagnosis with our vision stuck in the causality principle, so the transition of something from low entropy to high entropy, irregularity-chaos, like glass breaks but can’t be reunited in the same way, they help us to diagnose time. That is, the increase in disorder makes us think that time is flowing forward. But apart from that, if the gravitational force around us is low and if we are not in a planet like Earth and are floating in space, we cannot know what is now, what is past and what is future.
Einstein once wrote: “People like us who believe in physics know that the distinction between past, present, and future is only a stubbornly persistent illusion,”
Is time really just an illusion?
Einstein he combined the idea of space and time into a four-dimensional structure he called space-time and suggested that the two concepts could never be separated and that the ‘now’ has no properties, not even the concepts of ‘past’ and ‘future’. The malleability of space and time means that two events that occur far apart can occur in one order when viewed by one observer, and in the reverse order when viewed by another observer.
So Dear reader, time does not always flow forward on the scale of the universe; it flows forward by attaching to the deterministic framework, covering our walls of perception.
This brings up a lot of new questions. If we can remember the past, can we remember the future? Is time real? Can we travel between the past and the future? AND A LOTS OF ANOTHER.. We will talk in other articles
What is your opinion about time ?
If you could see your whole life from start to finish, would you change things?
Movie recommendation :