1.the time

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Upper secondary RO2
Time frequency

1. The time

2. Traditionally, time is seen as a form of measuring the distance between events . It is composed of past, present and future. The past is regarded as something which already happened that cannot be changed. The future, however, is regarded as a multitude of possibilities available . People measure time using several units, some based on real events (the rotation of the Earth around the Sun), others are arbitrary.

3. The classic description of t ime made by Isaac Newton in his "Principia" is that time "flows" constant ly , the same for all. I mean it is independent of events that occur within it . This time description was eliminated by Einstein and his theory .

4. T he classic definition of time is based on the way people perceive its "passing". We a cknowledge events from a personal point of view and we assume that this i s what it is like everywhere. The classical approach to t ime does not explain why we perceive time in this way and no t how this effect is acquired. Other theories about the nature of time question the "roots" of this natural point of view.

5. Time accompanies us everywhere, reminding us of the uniqueness of each moment of our passing through the Universe. What is time in its essence? Was Einstein right when he said that time is relative?

6. Time i s the anonymous that slides between our fingers , taking with it our whole existence . Everyone knows what time is because it can be seen passing . This is probably the first characteristic of human experience.

7. Maybe that is why clocks have been invented - the scientific mode to measure time objectively, outside our personal experiences. A few houndred years ago, people supposed that time and space were simply given by God. Saint Augustin from Hippo noticed that ” the attempt of defining time is basically just a lining of words that are going to get lost without accomplishing a portait of this”.

8. The demonstration of Albert Einstein which says that that time is relative, was a real shock for the scientific community and for the religious one. Shortly and for everyone’s capacity of understanding, the essence of the theory is that ” my time is not the same as yours if we are moving differently” .

9. P hilosophers and physicis ts have been researching for thousands of years if the passing of time is a physical effect or an illusion.

10. What is for sure is that in physics there is nothing that matches a flow or a movement of time. Some may say that even if the past or the future do not have an universal meaning, it surely exist a distinction in time between the direction to the past and the direction to the future.