0 Members and 1 Guest are viewing this topic.
If I could freeze motion and place a huge ladder from the Earth to the Sun and then started to ascend the ladder, am I climbing into the past?
Quote from: Thebox on 02/07/2016 09:27:48If I could freeze motion and place a huge ladder from the Earth to the Sun and then started to ascend the ladder, am I climbing into the past?If you froze all motion it would not effect the flow of time from the past into the future.No matter what direction you take be it climbing a mountain or descending down from it, or walking forwards or walking backward or standing still , you are always moving into the future. It is impossible to go into the past because , in a hypothetical scenario you could kill your own father and cease to exist.You question is really a silly one!Alan
So the Sun end of the ladder is in the past? huh!
Quote from: Alan McDougall on 02/07/2016 10:06:28Quote from: Thebox on 02/07/2016 09:27:48If I could freeze motion and place a huge ladder from the Earth to the Sun and then started to ascend the ladder, am I climbing into the past?If you froze all motion it would not effect the flow of time from the past into the future.No matter what direction you take be it climbing a mountain or descending down from it, or walking forwards or walking backward or standing still , you are always moving into the future. It is impossible to go into the past because , in a hypothetical scenario you could kill your own father and cease to exist.You question is really a silly one!AlanYou have not considered that you see the sun in its past, so If I am climbing a ladder to the sun , am I not climbing into the past?added - I drew the question. [ Invalid Attachment ] added thought - So the Sun end of the ladder is in the past? huh!added fact - If we could produce a piece of elastic that could withstand the heat of the Sun and was long enough, there would be absolutely nothing that could stop us attaching the elastic to the sun and coupling the earth up like a truck towing a car. (p.s obvious our rockets are limited). So obviously the tip of the ladder at the sun end or the elastic tip end at the sun is in a different time dimension than the Earth tip end.
Quote from: Thebox on 02/07/2016 10:13:29So the Sun end of the ladder is in the past? huh!No, it is in the same time as the earth.Think about a train travelling from station A to station B which is 8mins away.The train leave A at 1152, which is also the time at B.The train arrives at B at 1200, which is also the time at A.The times at A and B are always the same in this scenario it is only the times the train leaves and arrives that causes you confusion.Now substitute Sun for train.
You ask the oddest questions really you do!
the area contractions of the train travelling away from the Earth,
it takes 8 minutes for the photons of the ladders tip at the sun end to reach your eyes, so you see the tip of the ladder in the past not in its exact position.
You can check this information if you like, it is a fact, I have read this and you have all told me this about photons and the 8 minutes it takes to arrive at your eyes so we can see.
Quote from: Thebox on 02/07/2016 10:56:06 the area contractions of the train travelling away from the Earth, Quote from: colinThe what??A bit like the Lorentz transformation and length contraction, except the 2d visual area contracts to a 0 point source. If you stood on the track directly behind a train that was on a long linear stretch of track, when the train moves away for m you, you would observe the rear area of the train to down scale in visual size. But that is why I left it out to keep it simple. Quote from: Thebox on 02/07/2016 10:56:06it takes 8 minutes for the photons of the ladders tip at the sun end to reach your eyes, so you see the tip of the ladder in the past not in its exact position. Quote from: colinYes, the light shows where the sun was 8 mins ago, but the sun is in reality at the same time as the earth. The light leaves the sun at 1152 (same time on both sun and earth) and arrives at earth at 1200, which is also the time on the sun.You say the light shows where the sun was 8 mins ago, so the photons from the tip of the ladder, the sun end ,shows where the ladder tip was 8 mins ago?Quote from: Thebox on 02/07/2016 10:56:06You can check this information if you like, it is a fact, I have read this and you have all told me this about photons and the 8 minutes it takes to arrive at your eyes so we can see.QuoteBut you are clearly not understanding what that means. It is only the travel time, the sun is not existing 8 mins behind us.I understand , it is about the position, the ladder which is now a couple moves with the Sun, it also moves our end in synch with the sun , we can see the ladder change angle relative to the movement of the Sun. Consider my reply one up.
The what??
Yes, the light shows where the sun was 8 mins ago, but the sun is in reality at the same time as the earth. The light leaves the sun at 1152 (same time on both sun and earth) and arrives at earth at 1200, which is also the time on the sun.
But you are clearly not understanding what that means. It is only the travel time, the sun is not existing 8 mins behind us.
Quote from: Alan McDougall on 02/07/2016 10:54:08You ask the oddest questions really you do!There is nothing odd about it, read my reply to Colin.
I understand , it is about the position, the ladder which is now a couple moves with the Sun,
it also moves our end in synch with the sun , we can see the ladder change angle relative to the movement of the Sun
Quote from: Thebox on 02/07/2016 11:22:54I understand , it is about the position, the ladder which is now a couple moves with the Sun, The term couple has a specific meaning in physics and it is not the one you are using. Quote from: Thebox on 02/07/2016 11:22:54it also moves our end in synch with the sun , we can see the ladder change angle relative to the movement of the SunIf you think about this carefully you would realise that the ladder would appear to be curved. It would start at the earth aiming in the direction of the sun's actual position now (1200), and would appear to curve backwards towards where the sun was at 1152.The ladder does not move back in time at the sun end, only its image as a result in the delay caused by the speed of light.
Quote from: Colin2B on 03/07/2016 00:44:42Quote from: Thebox on 02/07/2016 11:22:54I understand , it is about the position, the ladder which is now a couple moves with the Sun, The term couple has a specific meaning in physics and it is not the one you are using. Quote from: Thebox on 02/07/2016 11:22:54it also moves our end in synch with the sun , we can see the ladder change angle relative to the movement of the SunIf you think about this carefully you would realise that the ladder would appear to be curved. It would start at the earth aiming in the direction of the sun's actual position now (1200), and would appear to curve backwards towards where the sun was at 1152.The ladder does not move back in time at the sun end, only its image as a result in the delay caused by the speed of light.A great answer Colin and showing space-time curvature , an answer that one anticipated, you would not see the ladder to be curved Colin, in reality you would not see the ''tip'' of the ladder the Sun end because of the visual contraction.However we would see the ladder move relative to the sun like a compass needle always point the right direction.
Quote from: Thebox on 03/07/2016 11:48:23Quote from: Colin2B on 03/07/2016 00:44:42Quote from: Thebox on 02/07/2016 11:22:54I understand , it is about the position, the ladder which is now a couple moves with the Sun, The term couple has a specific meaning in physics and it is not the one you are using. Quote from: Thebox on 02/07/2016 11:22:54it also moves our end in synch with the sun , we can see the ladder change angle relative to the movement of the SunIf you think about this carefully you would realise that the ladder would appear to be curved. It would start at the earth aiming in the direction of the sun's actual position now (1200), and would appear to curve backwards towards where the sun was at 1152.The ladder does not move back in time at the sun end, only its image as a result in the delay caused by the speed of light.A great answer Colin and showing space-time curvature , an answer that one anticipated, you would not see the ladder to be curved Colin, in reality you would not see the ''tip'' of the ladder the Sun end because of the visual contraction.However we would see the ladder move relative to the sun like a compass needle always point the right direction.I repeat because it is obvious no one read my post it is impossible go into the past by climbing a ladder or any of another infinity of other reasons.I am baffled why people continue responding to this non-science?
Quote from: Alan McDougall on 03/07/2016 12:53:00Quote from: Thebox on 03/07/2016 11:48:23Quote from: Colin2B on 03/07/2016 00:44:42Quote from: Thebox on 02/07/2016 11:22:54I understand , it is about the position, the ladder which is now a couple moves with the Sun, The term couple has a specific meaning in physics and it is not the one you are using. Quote from: Thebox on 02/07/2016 11:22:54it also moves our end in synch with the sun , we can see the ladder change angle relative to the movement of the SunIf you think about this carefully you would realise that the ladder would appear to be curved. It would start at the earth aiming in the direction of the sun's actual position now (1200), and would appear to curve backwards towards where the sun was at 1152.The ladder does not move back in time at the sun end, only its image as a result in the delay caused by the speed of light.A great answer Colin and showing space-time curvature , an answer that one anticipated, you would not see the ladder to be curved Colin, in reality you would not see the ''tip'' of the ladder the Sun end because of the visual contraction.However we would see the ladder move relative to the sun like a compass needle always point the right direction.I repeat because it is obvious no one read my post it is impossible go into the past by climbing a ladder or any of another infinity of other reasons.I am baffled why people continue responding to this non-science?The curvature of space is none science?The Lorentz contractions are not science?Time is none science?I suggest you do not know enough about science to recognise valuable topics and ambiguous questions with more than one meaning . added - read the anticipated curved ladder post, you would see a person at the top of the ladder in their past. They start their climb and we see them in their past, added - I drew the curved ladder scenario
Climbing into the past by any means is absolutely "non-science" Period . Lorentz contractions and the curvature of space has nothing to do with "Climbing into the past"You cannot see something that has not yet impinged onto the retina of your eyes why is that so difficult to understand?
Yes, there is a delay for the light to reach us from distant (and even close) objects. But this does not imply that they exist in the past,
it just means that the information we receive from them is old. It used to take a day or two for news in Europe to get to the US--this never implied that Europe was in the past. In fact this interpretation falls apart when you consider that the delay goes both ways! I also took time for news to get to Europe from the US. Radio waves emitted from the Earth take 8 minutes to reach the sun, so someone at the end of your ladder listening to the radio would be listening to signals that had been in transit for 8 minutes, but they would also know when a solar flare had occurred 8 minutes ahead of us here on Earth--so are they in the future or past? They are in the present, but there is a delay...