العربية
中国
Français
Deutsch
Ελληνική
हिन्दी
Italiano
日本語
Português
Русский
EspañolPAST
The 'past' is the portion of the timeline that has already occurred; it is the opposite of the future. It is also contrasted with the present. It is also regarded as the conglomerate of events that happened in a 'certain point' in time, within the Space-time continuum. The aforementioned conception is closely related to Albert Einstein's relativity theory.
According to presentism, the past doesn't ''exist'', but all sciences study virtually the world's past, more or less far. Humans have recorded the past since ancient times, and to some extent, one of the defining characteristics of human beings is that they are able to record the past, recall it, remember it and confront it with the current state of affairs, thus enabling them to plan accordingly for the future, and to theorise about it as well.
The past is the object of such fields as history, archaeology, archaeoastronomy, historical linguistics, geology (historical geology), paleontology, paleobotany, paleoethnobotany, palaeogeography, paleoclimatology, cosmology.
In classical physics the past is just a half of the timeline. In special relativity the past is considered as absolute past or ''the past cone''). In Earth's scale the difference between "classical" and "relativist" past is less than 0.05 s, so it can be neglected in most cases.
★ Memory
★ Retro
★ Antiquarian
★ Fossil
★ History
★ Past tense
According to presentism, the past doesn't ''exist'', but all sciences study virtually the world's past, more or less far. Humans have recorded the past since ancient times, and to some extent, one of the defining characteristics of human beings is that they are able to record the past, recall it, remember it and confront it with the current state of affairs, thus enabling them to plan accordingly for the future, and to theorise about it as well.
The past is the object of such fields as history, archaeology, archaeoastronomy, historical linguistics, geology (historical geology), paleontology, paleobotany, paleoethnobotany, palaeogeography, paleoclimatology, cosmology.
| Contents |
| The past in physics |
| Quotes |
| References |
| Related topics |
| See also |
The past in physics
In classical physics the past is just a half of the timeline. In special relativity the past is considered as absolute past or ''the past cone''). In Earth's scale the difference between "classical" and "relativist" past is less than 0.05 s, so it can be neglected in most cases.
Quotes
References
Related topics
★ Memory
★ Retro
★ Antiquarian
★ Fossil
★ History
See also
★ Past tense
This article provided by Wikipedia. To edit the contents of this article, click here for original source.
psst.. try this: add to faves
