Recent content by phil_drew

Hi All, I wonder if you can help me with a little puzzle I'm working on. I'll include a picture for clarity. I suspect that you mathsy types will be able to tell me straight away if this is possible or not, but I just can see the obvious... I have a fine square grid of numbers (blue in...

Well there goes the patent then...

I'm not sure that the location of items in the universe has much impact on where the centre is. And I'm pretty sure that averaging them wouldn't help - what about empty space? Isn't the current thinking that since no matter where you stand, the edge of the universe is moving away from you at...

Yes, you're right, there is an issue there, and I don't really think you could reach c using this method. But in principle, you could expell anything out of the back, and its mass would also be rising with your approach to c. The only practical problem is about how much expellable matter you...

Ah.. So there's strictly no spinning or rotating alowed then? But what if the absolute reference frame does rotate around a point? If there's an absolute inertial frame, then couldn't there be an absolute centre of the universe, around which it would be free to rotate? (Actually, I don't...

OK, this is a question probably asked and answered before, but I've been wondering about this for years... Alkatran made a comment in the space-buoy thread about how mass changes with speed in SR. As you approach the speed of light, your mass increases towards infinity, and it would take...

I think Alkatran hit on the real problem with this. He's right when he says that you can't know that the emmiters sent the photons at the same time - not even if they're based on synchronised clocks. The trouble is that the flow of time is variable in SR. Which means the clocks can become...