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Discussion and Debate
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Physical & Life Sciences
Time in deep space
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<blockquote data-quote="dad" data-source="post: 74114716" data-attributes="member: 98011"><p>Thanks for that. As I said they have not the foggiest notion what time is.</p><p>By the way time is not physics. So how 'time IN physics' may be required to be conceived doesn't address what time IS. Please be honest.</p><p></p><p>"<strong>Physics</strong> is the only science that explicitly studies time, but even physicists agree that time is one of the most difficult properties of our universe to understand..."</p><p></p><p><a href="http://www.exactlywhatistime.com/physics-of-time/" target="_blank">Physics of Time – Exactly What Is Time?</a></p><p></p><p>Then there is 'absolute time'</p><p></p><p>"Newtonian Time</p><p>According to its most famous proponent, Sir Isaac Newton, for example, absolute time(which is also sometimes known as “Newtonian <strong>time”) exists independently of any perceiver,</strong> progresses at a consistent pace throughout the universe, is <strong>measurable but imperceptible</strong>, and can only be truly understood mathematically. For Newton, <strong>absolute time and space were independent and separate aspects of objective reality, and not dependent on physical events or on each other</strong>.</p><p><a href="http://www.exactlywhatistime.com/physics-of-time/absolute-time/" target="_blank">Absolute Time – Exactly What Is Time?</a></p><p></p><p></p><p>"<strong><span style="font-size: 22px"><a href="http://blogs.discovermagazine.com/cosmicvariance/2011/09/01/ten-things-everyone-should-know-about-time/" target="_blank">Ten Things Everyone Should Know About Time</a></span></strong></p><p>By <a href="http://discovermagazine.com/authors?name=Sean+Carroll" target="_blank">Sean Carroll</a> | September 1, 2011 10:58 am</p><p>“Time” is <a href="http://news.bbc.co.uk/2/hi/5104778.stm" target="_blank">the most used noun in the English language</a>, yet it <strong>remains a mystery</strong>. We’ve just completed an amazingly intense and rewarding <a href="http://blogs.discovermagazine.com/cosmicvariance/2011/08/26/time-is-out-of-joint/" target="_blank">multidisciplinary conference on the nature of time</a>, and my brain is swimming with ideas and new questions. Rather than trying a summary (the talks will be online soon), here’s my stab at a top ten list partly inspired by our discussions: the things everyone should know about time. [Update: all of these are things I think are true, after quite a bit of deliberation. Not everyone agrees, although of course they should.]</p><p></p><p>1. <strong>Time exists. Might as well get this common question out of the way. Of course time exists </strong>— otherwise how would we set our alarm clocks? Time organizes the universe into an ordered series of moments, and thank goodness; what a mess it would be if reality were complete different from moment to moment. The real question is whether or not time is <em>fundamental</em>, or perhaps emergent. We used to think that “temperature” was a basic category of nature, but now we know it emerges from the motion of atoms. <strong>When it comes to whether time is fundamental, the answer is: nobody knows</strong>. </p><p><a href="http://blogs.discovermagazine.com/cosmicvariance/2011/09/01/ten-things-everyone-should-know-about-time/#.XSloauhKjDc" target="_blank">Ten Things Everyone Should Know About Time - Cosmic Variance : Cosmic Variance</a></p><p></p><p>"Physicists define time as the progression of events from the past to the present into the future. Basically, if a system is unchanging, it is timeless. Time can be considered to be the fourth <strong>dimension of reality</strong>, used to describe events in three-dimensional space. It is <strong>not something we can see, touch, or taste,</strong> but we can <strong>measure its passage</strong>."</p><p></p><p></p><p><a href="https://www.thoughtco.com/what-is-time-4156799" target="_blank">What Is Time? Here's a Simple Explanation</a></p><p></p><p>If time is a dimension of reality in the solar system and we take a piece of it hundreds of millions of miles long, tell us why and how the dimension of time vanishes? It doesn't! You just ignore it in your math.</p><p></p><p></p><p></p><p> Defining something as universal does not make it so! You need proof.</p><p> That would be here in the fishbowl only!</p><p></p><p> You can test to measure time but not time itself.</p><p></p><p> False! The only space man has experienced along with the time there is HERE. You may not issue a decree it is the same in all the universe.</p><p></p><p> Be honest. No test exists to see what time is like in the far universe. We can test how time unfolds HERE. We can MEASURE it. ...HERE.</p><p></p><p></p><p>Yes along with space is time. If you take a part of this solar system such as the area earth orbits the sun in six months IN that area is time! Not just space. Parallax attempts to use just the space devoid of time.</p><p> GR does not tell us what time is like in far space compared to here! They have been tested here. There are aspects of relativity that bear true also in space but no aspect relates to telling us about time there! YOUR claim is erroneous.</p></blockquote><p></p>
[QUOTE="dad, post: 74114716, member: 98011"] Thanks for that. As I said they have not the foggiest notion what time is. By the way time is not physics. So how 'time IN physics' may be required to be conceived doesn't address what time IS. Please be honest. "[B]Physics[/B] is the only science that explicitly studies time, but even physicists agree that time is one of the most difficult properties of our universe to understand..." [URL="http://www.exactlywhatistime.com/physics-of-time/"]Physics of Time – Exactly What Is Time?[/URL] Then there is 'absolute time' "Newtonian Time According to its most famous proponent, Sir Isaac Newton, for example, absolute time(which is also sometimes known as “Newtonian [B]time”) exists independently of any perceiver,[/B] progresses at a consistent pace throughout the universe, is [B]measurable but imperceptible[/B], and can only be truly understood mathematically. For Newton, [B]absolute time and space were independent and separate aspects of objective reality, and not dependent on physical events or on each other[/B]. [URL="http://www.exactlywhatistime.com/physics-of-time/absolute-time/"]Absolute Time – Exactly What Is Time?[/URL] "[B][SIZE=6][URL='http://blogs.discovermagazine.com/cosmicvariance/2011/09/01/ten-things-everyone-should-know-about-time/']Ten Things Everyone Should Know About Time[/URL][/SIZE][/B] By [URL='http://discovermagazine.com/authors?name=Sean+Carroll']Sean Carroll[/URL] | September 1, 2011 10:58 am “Time” is [URL='http://news.bbc.co.uk/2/hi/5104778.stm']the most used noun in the English language[/URL], yet it [B]remains a mystery[/B]. We’ve just completed an amazingly intense and rewarding [URL='http://blogs.discovermagazine.com/cosmicvariance/2011/08/26/time-is-out-of-joint/']multidisciplinary conference on the nature of time[/URL], and my brain is swimming with ideas and new questions. Rather than trying a summary (the talks will be online soon), here’s my stab at a top ten list partly inspired by our discussions: the things everyone should know about time. [Update: all of these are things I think are true, after quite a bit of deliberation. Not everyone agrees, although of course they should.] 1. [B]Time exists. Might as well get this common question out of the way. Of course time exists [/B]— otherwise how would we set our alarm clocks? Time organizes the universe into an ordered series of moments, and thank goodness; what a mess it would be if reality were complete different from moment to moment. The real question is whether or not time is [I]fundamental[/I], or perhaps emergent. We used to think that “temperature” was a basic category of nature, but now we know it emerges from the motion of atoms. [B]When it comes to whether time is fundamental, the answer is: nobody knows[/B]. [URL="http://blogs.discovermagazine.com/cosmicvariance/2011/09/01/ten-things-everyone-should-know-about-time/#.XSloauhKjDc"]Ten Things Everyone Should Know About Time - Cosmic Variance : Cosmic Variance[/URL] "Physicists define time as the progression of events from the past to the present into the future. Basically, if a system is unchanging, it is timeless. Time can be considered to be the fourth [B]dimension of reality[/B], used to describe events in three-dimensional space. It is [B]not something we can see, touch, or taste,[/B] but we can [B]measure its passage[/B]." [URL="https://www.thoughtco.com/what-is-time-4156799"]What Is Time? Here's a Simple Explanation[/URL] If time is a dimension of reality in the solar system and we take a piece of it hundreds of millions of miles long, tell us why and how the dimension of time vanishes? It doesn't! You just ignore it in your math. Defining something as universal does not make it so! You need proof. That would be here in the fishbowl only! You can test to measure time but not time itself. False! The only space man has experienced along with the time there is HERE. You may not issue a decree it is the same in all the universe. Be honest. No test exists to see what time is like in the far universe. We can test how time unfolds HERE. We can MEASURE it. ...HERE. Yes along with space is time. If you take a part of this solar system such as the area earth orbits the sun in six months IN that area is time! Not just space. Parallax attempts to use just the space devoid of time. GR does not tell us what time is like in far space compared to here! They have been tested here. There are aspects of relativity that bear true also in space but no aspect relates to telling us about time there! YOUR claim is erroneous. [/QUOTE]
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