Space and Time

March 31, 2020

Hello, everyone!
Welcome back to my blog. How’s life? I hope all of you feel good. Especially today we must at war with corona virus.

Well, today I want to tell you about space and time. Do you ever hear space and time?

According to Lexico dictionary, time and space regarded as a single entity; specifically = "space-time". The origin of time-space is early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher. From time + space.

Time is a scale to measure the amount of "change" in events or happenings around us. Well since 19th century we believed that rate of change of time will be same or equal for any observers no matter wherever they are or whatever their position is. Space is a 3 dimensional "room" or "emptiness" where the above said events are happening. Space is thought to be independent of the time since 19th century.

1000+ Space-time Stock Images, Photos & Vectors | Shutterstock

Philosophy of space and time is the branch of philosophy concerned with the issues surrounding the ontology, epistemology, and character of space and time. While such ideas have been central to philosophy from its inception, the philosophy of space and time was both an inspiration for and a central aspect of early analytic philosophy. The subject focuses on a number of basic issues, including whether time and space exist independently of the mind, whether they exist independently of one another, what accounts for time's apparently unidirectional flow, whether times other than the present moment exist, and questions about the nature of identity (particularly the nature of identity over time).

Time and space stock illustration. Illustration of forward - 6229895

By the start of 20th century Einstein with his new theory of relativity has shown that time is a space dependent quantity which was totally against the notion of our concepts about the nature. He stated with his theory that “The amount of time it takes for a same event to occur will be different for different observers". So that he claimed no same event can occurs simultaneously for different observers.

Since experiments confirmed his theory to be true the concepts of space has changed. Then on we refer the "space" around as "space-time ". Space time is the continuum where events are in fact happening. So the reality has changed from a three dimensional holographic thing to a four dimensional space time (3 special dimensions and one time direction).