My last thought is this - that the driving force for colonisation of another earth I believe will be earth politics and war. A nation with the technology to leave earth behind and seek their destiny elsewhere, free of earth government, might well take the chance. Tyranny and liberty are the twin the...

Interesting points raised. I suppose I fall in the camp that "possibly", our star appears to be a very average one, and therefore maybe our planet and its biotope is not that special. If that is the case then it is possible that earth like biotopes (and many other kinds) exist on other pla...

I am surprised that you mention the unlikelihood of an earth-twin, though I am not saying you are wrong. The simple answer is we don't know. I was reading an Astronomy Now article a few years ago that stated that due to the billions of stars in our galaxy alone, and the unknown number of galaxies ou...

Yes you are correct of course. I dug out my old calculations and discovered the error. As luck would have it my first calculation was to Alpha Centauri which is 4.365 LY, and my second calculation was in error. It just so happens that to travel to Alpha Centauri, constant g to the half way point of ...

I believe the relation I saw was a traveller accelerating at g continously for one year, has travelled a distance of one light year. Two years, 2 light years. What you said about 1LY makes sense. Maybe it was because my calculations were in light years, that is after one year you get to 1LY speed. I...

Sorry a typo. I meant FTL, not flt above. My take on time dilation is as follows, I welcome any corrections to my rudimentary calculations and thoughts. Every human being is moving at a very great and defined linear speed (m/s). We most likely have a rotational angular speed as well but that I will ...

I think I have enough links in these posts to add to my favourite reading topics of "metaphysics" and "quantum mechanics" to keep me busy for a while. Reminds me of a book I have been meaning to read for years in my collection (have started reading it a few times) titled "Th...

Thankyou all. Some interesting ideas to digest. "Breakdown" is a bit of a strong word, but what I was suggesting was the problem of infinity. It's like dividing by zero. You can't do it. I should have explained what I meant by the law of gravity, and yes the Newtonian constraints are noted...

I have been invite to explain my reluctance to believe the theory of the "big bang." My main problem with it has to do with mathematical limits. In our science of mathematics you sooner or later will come across the concept of mathematical limits. A limit is basically a point where our mat...

OK thankyou for the welcome. I will post my problems with the big bang as you suggest. I haven't thought out my arguments too much but the older I get the less I believe this theory about the origin of the universe.

Hello, discovered the "SpaceEngine" utube video "Serenity" this morning and was blown away. When it gets on steam I will definitely buy it. Not a fan of worm-holes or black-holes, as I don't believe in the theory, so I hope they are kept to a minimum. Not completely convinced of ...