Stumblebum
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About Stumblebum
- Birthday 03/26/1953
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Stevensville Ontario Canada
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tradesman
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cosmology
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married w/2 daughters
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bldg systems analyst
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A new theroy on why time travel may be impossible
Stumblebum replied to alan2here's topic in Other Sciences
Ah! The Langoliers will make sure we don't go back. Every second of every day we witness the past, who's to say that we might someday be able to see all segments of it rather than go to it. -
A new theroy on why time travel may be impossible
Stumblebum replied to alan2here's topic in Other Sciences
It doesn't have to be the crucifixion. It could be something that happened an hour ago. If 50 million people decide to go then what? -
A new theroy on why time travel may be impossible
Stumblebum replied to alan2here's topic in Other Sciences
Let's say TM's are available to everyone. At Easter many people want to visit the crucifixion, lets say 50 million. It would be very crowded on Calvary, there is no record of such a crowd being present, so it never happened in our time line. I don't think it is possible to go back in time without creating another timeline. Either that or its possible to change or start a new timeline at any point off the present timeline but it does not affect the leading forward points of the timeline as it advances into the future. Too many timeline references I know but this ain't easy. If someone on the other side of the universe went back in time and changed something would it affect us? -
Can decomposition occur without other lifeforms? If an astronaut was to die on a planet complete with moderate temperatures and devoid of life would decomposition be possible? Could the bacteria living on or within the astronaut's body do the job?
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A Dangerous Idea?
Stumblebum replied to MaxCathedral's topic in Evolution, Morphology and Exobiology
Likewise....great answer -
I'm no physicist but I thought I'd show you something I thought of long ago. Rocket A leaves Earth at .8c to a planet 8ly away. Before it left the astronaut calculated it would take him 6 years his time(approx) to reach the planet if you took time dilation into account. I'm skipping the time dilation math. So when he arrives he calculates his distance travelled to be 6 x .8 = 4.8 ly. What I'm about to say may have already been discussed somewhere else, I don't know. Objects with mass travel a shorter distance between 2 points than a massless photon thru spacetime. In other words mass exhibits a property rarely discussed and that is the ability to cut through spacetime as if it is trenching. The photon cannot go through space but can follow the mass object as it moves thru spacetime. Analogy....2 points on a round inflated balloon. The distance between them would be the arc of the balloon's skin. Imagine light follows this arc because it cannot dent the skin or spacetime. This is light's shortest path. If you apply fingertip pressure on one point, simulating mass, and draw it across the balloon's skin to the other point you will notice that it not only travelled a shorter distance but a straighter course. In fact if I apply enough pressure(mass) to both points they eventually meet in the centre. I'm not saying this is the shape of the universe, just a way to show that mass travels shorter distances than light. You will also notice that the balloon's skin rebounds or stretches after the mass has passed over it thus maintaining an arc for light to travel. This probably flies in the face of relativity but is possible if the universe rides a huge geodesic called spacetime. If all the objects in the universe ride the geodesic of spacetime and they all accelerate near to the speed of light creating infinite mass for them all then yes, everything is there all at once. You are everywhere or close to it. (Like fingertips meeting in the centre of the balloon) Does this suggest that things are much closer than they appear? Are we living on the outside of a magnifying glass looking back? I used to think that I was looking thru a magnifying glass towards the universe. Again, flame me if you want but try to understand this is what I conceived in my head when I first starting reading about this stuff, nothing more. Sorry, have to go to a meeting but I'll check back later.
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If there really was a bang or shockwave I wonder how long until it reached this far away? I assume it isn't going to happen but if it did have a medium to travel through to reach us would it have been here by now or are we still waiting?
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Wouldn't a place to put all that energy and matter come first?
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I hope I'm in the right section. More questions for the astute members of this forum. If a light particle(photon) has no mass then does that affect the famous equation E=mc²? or can a massless photon release energy? If a photon has mass and is absorbed (lost) is there a release of energy equivalent to its mass? If c=0 can there be any energy? or do things have to be in motion for the equation to work?
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Sorry about the terminology. Its wasn't the fact whether it was a vein or artery but that the body responded to a crisis by growing a bypass. A few of you have said this has happened before but I would wager not very often. I thought it might have something to do with genetics and evolution to some extent. Is this the type of stuff Darwin was intimating? I wonder if adult stem cells somehow were triggered into forming a new blood vessel. Does anyone know if this phenomena has been studied or if other body parts have mysteriously begun regenerating or building anew?
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A family member (55 year old male) was recently diagnosed with 3 partially blocked arteries at the heart. The doctor explained that he would insert a shunt (I hope terminology correct), to keep the arterial walls from collapsing. He did 2 no problem but when he went to install the third it was then when he discovered that the body had already grown a vein around the affected section thereby providing a natural by-pass. The doctor told us he had never seen anything like it. Has anyone heard of this? Is this one of those moments where a possible mutated gene is responsible?
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I've often heard the universe described as containing billions of galaxies, etc. I guess this imay be a more philosophical question but how can an infinite boundary-less universe contain anything?
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Just a wild thought. Are the miraculous cures that we occasionally hear about actually a result of stem cells within the body being triggered into action because of the attitude of the afflicted? Believing that a divine power is listening to your needs, thinking that the body has the power (mind over matter) to fix itself or a combination of treatment with a positive attitude might be all it takes for the stem cells in your body to do some extraordinary repair work.
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I think everyone has missed one important point. In one of his posts Danny indicated that he personally never went on the trip to the future but that his future self supposedly painted the picture the machine brought back. Danny's time line never alters, he did not go into the future to paint. In order for the painting to be painted, Danny would have had to go along for the ride. He cannot exist in a time he hasn't been to yet. If he makes the temporal leap forward he can can look forever and never find another Danny or painting waiting for him. Its situations like these that convince me that travel into the past is impossible. At great speeds it is possible to end up in the future but it won't be yours as you would still exist in the now (timeline intact). Any machine that travels at great speeds to go into the futue doesn't miss the time it supposedly skips across. That 'skipped' time is actually not skipped, its just jammed into what is a very short time for you and the machine.
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I like that answer, makes one think. If I had 5 rims at different distances from the hub and spun the wheel the same, the outer rim will go faster than the inner rims. No matter how hard I try I can never approach the speed of the outer rim with any of the other rims. I thought of this one day when I was trying to figure out some kind of an example or analogy for light speed as top speed in the universe. Then I had this crazy thought that if the universe was a gigantic spinning wheel then the speed of light may depend on your position on it and because of the vastness of space we don't notice differences, yet. Science is weird, my brain hurts.