Recent content by Jack

Is it theoretically posible to have two time dimensions? Physicists often try to describe aspects of a 4-dimensional(spacially) universe but I have never heard of anyone try to describe a universe in which there are two time dimensions. If it is theoretically possible then can we make any...

Is it possible, even though highly improbable, that entropy could decrease with time i.e. particles randomly form a more ordered state to 'unbreak' something. If so I realize that they are incredibly unlikely to do so and it only is hypothetical but since this is a law of physics (I think) then...

So has anyone actually answered the first question here because I can't find it?

correct. As an object approaches the speed of light mass would become infinite and time would slow down to a stop.

As quartodeciman said- Thanks.

Thanks Janus but as I said in my first post I knew the answer to that one. It's the others that I don't have a rational explanation for.

So what are the simple explanations for these?

So did the link work for any of you because I tested it and it worked fine for me.

In this weeks new scientist there was an advert for the following site- www.thefinaltheory.com Is what they are saying true because it sounds a bit suspicious to me? For example it states that; And I know the answer to this and it is not 'impossible according to today's science'.

OK, now for my next stupid question- If time slows down to a stop as you approach the speed of light then how can light travel?

Could some one explain what entanglement is? Thanks.

Tachyons were going to be the subject of my next question actually. Everything you said about them was correct although I don't know much more about them than that, in fact I don't think anyone knows much more about them. Does this mean that they travel backwards in time and what are the...

I have not seen any of those words before and don't have the foggiest idea of what a 'metric of the universe' is. Could someone please explain?

If time slows down as you approach the speed of light then does this mean that it stops when you reach the speed of light and/or runs backwards above the speed of light?

Thanks KL Kam