🚀 go-pugleaf

On Thu, 17 Apr 1997 16:28:29 GMT, Dries van Oosten <dvoosten@fys.ruu.nl>
wrote:

>> Does this mean that if I manage to get a pebble to very near light
>> speed, it will start acting like a rather large gravity well?

>IMHO it does and that's why I don't like the statement that mass increases
>with speed. Momentum is just not a linear function of velocity, the mass
>doesn't change. If it would, what you say would have to be true and what
>you say can't be true since this would mean that light (moving at c) would
>see all masses infinitely large. This would mean that all masses would
>"attract" light with the same strength. This is absurd. Every object would
>be a black hole. Correct me if I make a mistake here, but this is how I
>see it.

Rest mass always stays the same no matter what speed you go at. It's only
the relative mass that seems to increase. Relative mass is a virtual
quantity, but the rest mass is the true mass.

					Yousuf Khan
--
Yousuf J. Khan
Ottawa, Ont, Canada
Nation's capital
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