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Space is the boundless three-dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework.
Debates concerning the nature, essence and the mode of existence of space date back to antiquity; namely, to treatises like the Timaeus of Plato, or Socrates in his reflections on what the Greeks called khôra (i.e. "space"), or in the Physics of Aristotle (Book IV, Delta) in the definition of topos (i.e. place), or in the later "geometrical conception of place" as "space qua extension" in the Discourse on Place (Qawl fi al-Makan) of the 11th-century Arab polymath Alhazen. Many of these classical philosophical questions were discussed in the Renaissance and then reformulated in the 17th century, particularly during the early development of classical mechanics. In Isaac Newton's view, space was absolute—in the sense that it existed permanently and independently of whether there was any matter in the space. Other natural philosophers, notably Gottfried Leibniz, thought instead that space was in fact a collection of relations between objects, given by their distance and direction from one another. In the 18th century, the philosopher and theologian George Berkeley attempted to refute the "visibility of spatial depth" in his Essay Towards a New Theory of Vision. Later, the metaphysician Immanuel Kant said that the concepts of space and time are not empirical ones derived from experiences of the outside world—they are elements of an already given systematic framework that humans possess and use to structure all experiences. Kant referred to the experience of "space" in his Critique of Pure Reason as being a subjective "pure a priori form of intuition".
In the 19th and 20th centuries mathematicians began to examine geometries that are non-Euclidean, in which space is conceived as curved, rather than flat. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean geometries provide a better model for the shape of space.
Did you guys hear about this? I can't stop chuckling over this.
Apparently the international space station got hit with a micrometeorite which caused the station to spring a 2 mm hole. :s0001:
Sounds pretty serious, right? Well it kinda is. If they hadn't discovered the hole they would...
’Stand your ground’ law protects shooter in deadly fight over parking space: sheriff
(Wadoya think ; vid @ link)
An argument over a handicapped parking spot at a convenience store in Florida led to a fatal shooting and the man who pulled the trigger won’t be arrested under the state’s “stand...
are Case length/head space gauges all about the same/equal I am looking to get a Lyman’s length/head space gauge for $18 (looks like normal price is $21-27) But was seeing others for like $30ish
Range Dillon jp oh except hornady was also $18ish down from $21
No joke. Congress is in the process of founding the first new military service since the Air Force in 1947. The United States Space Corps will be a part of the Department of the Air Force in a similar way in which the Marines are part of the Department of the Navy (sorry Marines, no offense...)...
I had a conversation with a friend about the probability of other intelligent life in the universe. He thinks there is none, so I did some thinking and napkin math and sent him an email. I thought some people here might find it interesting too.
Speed of light: 299,792,458 meters per...