- #1
Bouh
- 4
- 0
Hi,
I'm new to SR and GR in general. In fact, I just discovered Lorentz equations a week ago. And that got me thinking too, just as it must have happened to you too.
I like maths, but I'm more the kind of artistic person. And I was wondering what would be the sight of a traveller, on board a spacecraft , that would travel near the speed of light between Earth and a planet in another far distant galaxy. We suppose here that propulsion in not a problem and he is surrealistically able to complete the trip in a mere 2 hours (I suppose it reached 99.99...% the speed of light). I'm only interested in what he would see, looking outside the glass of his HUD.
I thought of the following. Let me know if I'm right. During the acceleration phase of the trip, I believe that he would experience a "universal crush" in a direction parallel to its trajectory. All the stars in front of him, would suddenly appear to get really close to him, but at the same time, would not be spheres any more, but simply disks of light (thus appearing has ellipsoids from his view point). They would also start to freeze, as time slows down for these stars from his point of view. The colour of the stars in front of him would progressively become blueish, while the stars being him (which are also getting closer, with ellipse-like shapes) would become more redish. At the top of his speed, he would be illuminated by a ring of light perpendicular to the direction of his travel, since all universe as nearly collapsed on a plane. The funny thing is... Earth being behind him, he is still probably able to see it for the most part of it's trip (since the distances are getting really compressed), although it appears as a flat disk too. During the slow-down phase, Earth would probably vanish, as the universe would seem to regain its usual shape and all the stars would find their place in the sky again. But he would be at a very different point in the universe.
Is that also what you think this traveller would experience? I think that would be a marvellous sight. Let me know what are your views.
--
Bouh
I'm new to SR and GR in general. In fact, I just discovered Lorentz equations a week ago. And that got me thinking too, just as it must have happened to you too.
I like maths, but I'm more the kind of artistic person. And I was wondering what would be the sight of a traveller, on board a spacecraft , that would travel near the speed of light between Earth and a planet in another far distant galaxy. We suppose here that propulsion in not a problem and he is surrealistically able to complete the trip in a mere 2 hours (I suppose it reached 99.99...% the speed of light). I'm only interested in what he would see, looking outside the glass of his HUD.
I thought of the following. Let me know if I'm right. During the acceleration phase of the trip, I believe that he would experience a "universal crush" in a direction parallel to its trajectory. All the stars in front of him, would suddenly appear to get really close to him, but at the same time, would not be spheres any more, but simply disks of light (thus appearing has ellipsoids from his view point). They would also start to freeze, as time slows down for these stars from his point of view. The colour of the stars in front of him would progressively become blueish, while the stars being him (which are also getting closer, with ellipse-like shapes) would become more redish. At the top of his speed, he would be illuminated by a ring of light perpendicular to the direction of his travel, since all universe as nearly collapsed on a plane. The funny thing is... Earth being behind him, he is still probably able to see it for the most part of it's trip (since the distances are getting really compressed), although it appears as a flat disk too. During the slow-down phase, Earth would probably vanish, as the universe would seem to regain its usual shape and all the stars would find their place in the sky again. But he would be at a very different point in the universe.
Is that also what you think this traveller would experience? I think that would be a marvellous sight. Let me know what are your views.
--
Bouh