Recent content by runningc

How, therefore, should a spacetime diagram showing the three vectors,: velocity through space, velocity through spacetime, and velocity through time be drawn and what equation would describe it? <Mentor's note, edited to get the quotes right>

According to Minkowski, spacetime for non-accelerated systems is a four dimensional continuum which has four axes (three space, one time) set mutually at right angles to each other. The velocity of a body moving in a straight line will be the resultant of the component velocities along the...

For any such effect to be measurable you would probably have to be running faster than any human has ever travelled, even in a space rocket, and the pan of your scales would obviously have be of ENORMOUS length!

To 'robphy' I'm sorry, but when I try to access your attachment, 231822, a message comes up saying that it is not available. Can you help? Runningc

Sorry, but I can't see what significance the equation has: (a). It simplifies to: c^2= c^2 (b). It only has one variable. i.e. 'v'.

Thanks very much, although I not quite sure how much it will actually help me in what I am trying to do as the diagram has 'c' and 'v' at right angles. I am working on an idea which seems to suggest that, despite Minkowsky, the Angle is variable and cannot exceed 90 deg. RC

Thank you; I was afraid it might not be that simple. I read it in "Why does E= mc^2" by Cox and Forshaw. RC

I have read that the velocity of a body through spacetime is equal to 'c'. Can I therefore draw a spacetime velocity diagram (triangle) with sides: "v" velocity through space...

I have a B.Sc of long standing but only studied physics as a subsidiary subject. I am a bit rusty but am trying to produce a paper on velocities in space and time. Runningc

How do I calculate the resultant of three component vectors set mutually at 60 degrees to each other (not in the same plane)?