Is time an illusion?
Time works by measuring periods between the past, present and future. It has a SI base unit, the second, defined as about 9 billion oscillations of the cesium atom. In physics time is needed for measuring the rate of change, like velocity and acceleration. In the 17th century, physicist Isaac Newton based his laws of motion on the assumption that t ime must tick from one second to the next, with no difference between the length of any two seconds. In the other words time is constant scalar universally. This is a valid approximation in daily life but no longer when relativistic effects take place. I n 1905, Albert Einstein asserted that the speed of light is instead constant. That cause that time must be relative and depend on the observer. Einstein concluded that distinction between past, present, and future is only a stubbornly persistent illusion. In the general relativity time is one dimension coupled to the three space dimensions. As discussed in the blog any energy cont