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Thread: What is space?

  1. #1 What is space? 
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    The thematic question here - 'What is space?' was inspired by Freedom - a 21 year old construction worker who left handedly complimented Truly Yours, and a 15 year old kid on another forum. It started a remarkable chain of responsive and unexpectedly educational replies, though I don't know if that'll happen here or not. Anyway:

    One of the larger 'little' questions ('A theory of time'). Si. It's being well taken care of here and the often unexpectedly sobriquet, eye opening, prescient answers can and may legitimately keep on coming in.

    One of the many correct answers I dont see yet is, Time: is the interval between two or more events.
    The same answer can be correctly applied to the question, 'What is space'?

    These are important, subtle, simple and complex (space-time contained) questions. It's good to see it here.

    The question 'What is space?' was brought up by a 15 year old on another forum about six months ago, I think the generally correct answers are still rolling in... Moves me to consider posting the question, 'What is space?', just to see what happens in the answer department - I mean this is serious and educational copy, folks.

    There's inevitable room for the question 'What is time', here, also, with a voluminous number of edifying answers. It too is an interval between two or more events. 'Events' in time = events in space, and conversely. Time is also motion, of course. Time and motion are synonymous, as are space and time. Anyway, if this post is a dud, you can blame it on me, but if it stimulates some unexpectedly diverse answers, you may accredit Sergey 500 of Hypography (another network?) and Freedom21, right *here and now - just like that, *space and time (space-time/time-space). It's all over the place.


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  3. #2  
    Forum Junior Cuete's Avatar
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    Since this question was posted in the physics board... I'd say that space is the property we measure with meters (or inches, or what ever), and denotes distance.


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  4. #3  
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    Quote Originally Posted by Cuete
    Since this question was posted in the physics board... I'd say that space is the property we measure with meters (or inches, or what ever), and denotes distance.
    Useful, as a highly limited definition.
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  5. #4  
    Forum Isotope Zelos's Avatar
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    space:
    a medium to seperate things in position
    time:
    a medium to seperate events
    I am zelos. Destroyer of planets, exterminator of life, conquerer of worlds. I have come to rule this uiniverse. And there is nothing u pathetic biengs can do to stop me

    On the eighth day Zelos said: 'Let there be darkness,' and the light was never again seen.

    The king of posting
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  6. #5  
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    more like -

    spacetime: the medium by which 4d events are separated.
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  7. #6 What is space? 
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    From: REVROSWELL Jul-10 7:03 pm
    To: That Rascal Puff (Kaiduorkhon) (3 of 3)

    1.3 in reply to 1.1

    I had a quick look at your thread and was impressed. Back when I was a child interested in science, I was told that space was a nearly perfect vacuum.

    That never did "sit right" with me. Long ago in the 1800s and maybe before space was called the ether. We know now that even the "empty" regions of space host all sorts of exotic cosmic critters like nearly massless' neutrinos, dark matter and energy, anti matter, all species of cosmic rays and radiation from x rays to gamma rays to visible light.

    I muse that maybe the ether of space is more correct a name than the "vacuum of space". I feel that in the future we will find that space is thick with all sorts of as yet undiscovered fields ! We need bigger and more powerful Accelerators! The energies brought to bear on subatomic particles at CERN are sufficient only to whet my appetite for more! MORE MORE!!!!

    forgive me the only thing that excites me more than this subject is religion ....I tent to preach on both science and spirituality....

    Quantum entanglement permeates all space and effects everything from quarks to stars, to us and our thoughts!

    Oh well it doesn't hurt to speculate does it?

    Yes, I enjoy the way you think and how you express it. The world needs more people like you. Einstein had it right when he said that imagination is more important than knowledge. He was a true artist and master of mathematics
    even if he did fudge a bit. Big Albert is one of my heros.

    oh well its time to do domestic stuff , later dude
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  8. #7 What is space? 
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    "By 1907 Minkowski realised that the special theory of relativity, introduced by Einstein in 1905 and based on previous work of Lorentz and Poincaré, could be best understood in a four dimensional space, since known as "Minkowski space", in which the time and space are not separated entities but intermingled in a four dimensional space-time, and in which the Lorentz geometry of special relativity can be nicely represented. This nice representation certainly helped Einstein's quest for general relativity. The beginning part of his address delivered at the 80th Assembly of German Natural Scientists and Physicians (September 21, 1908) is now famous:

    The views of space and time which I wish to lay before you have sprung from the soil of experimental physics, and therein lies their strength. They are radical. Henceforth space by itself, and time by itself, are doomed to fade away into mere shadows, and only a kind of union of the two will preserve an independent reality. - Minkowski
    - Einstein, CONTRIBUTIONS TO SCIENCE


    "...Descarte was not so far from the truth when he believed he must exclude the existence of an empty space. The notion indeed appears absurd as long as physical reality is seen exclusively in ponderable bodies. It requires the idea of the field as the representative of reality, in combination with the General Principle of Relativity, to show the true kernel of Descarte's idea, 'there exists no space empty of field'."
    - Einstein, p.p.375 - 6, IDEAS & OPINIONS.
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