Lazarus and the Gimp

09-03-2006, 23:07:22

Any of the resident Phys-heads want to tackle this?

First my assumptions. If these are wrong the rest is defiantly wrong

According to relativity all points of reference are equally valid.

According to relativity as an object speeds up its mass increases, at the speed of light its mass would be infinite.

Gravity is a function of mass and distance with the formula (mass1*mass2/distance^2)

Definitions. V1 the velocity at which your mass is increased buy a factor of 10.

Take a space ship shaped somewhat like a catamaran. The cross spars between the 2 hulls are capable of taking a compressive force of 9000 nutons, the gravitational pull between the 2 hulls is only 100 nutons (nice safety margin).

The ship accelerates and at some point reaches V1 relative to the planet it’s parsing.

An observer on the planet would see a ship moving at V1 thus its mass is 10 times what it was, the compressive force on the supporting spars is 10000 nutons and thay fail.

An observer siting on the ship observes the ship to be stationary, so the support spar holds, and with the planet moving past it at V1, thus the planets mass (and therefore gravity) is increased buy a factor of 10 causing most structures to fail (because nothing is built to stand in a 10 g field).

Can this contradiction be reconciled within relativity?

Needless to say, I'm buggered if I know.

First my assumptions. If these are wrong the rest is defiantly wrong

According to relativity all points of reference are equally valid.

According to relativity as an object speeds up its mass increases, at the speed of light its mass would be infinite.

Gravity is a function of mass and distance with the formula (mass1*mass2/distance^2)

Definitions. V1 the velocity at which your mass is increased buy a factor of 10.

Take a space ship shaped somewhat like a catamaran. The cross spars between the 2 hulls are capable of taking a compressive force of 9000 nutons, the gravitational pull between the 2 hulls is only 100 nutons (nice safety margin).

The ship accelerates and at some point reaches V1 relative to the planet it’s parsing.

An observer on the planet would see a ship moving at V1 thus its mass is 10 times what it was, the compressive force on the supporting spars is 10000 nutons and thay fail.

An observer siting on the ship observes the ship to be stationary, so the support spar holds, and with the planet moving past it at V1, thus the planets mass (and therefore gravity) is increased buy a factor of 10 causing most structures to fail (because nothing is built to stand in a 10 g field).

Can this contradiction be reconciled within relativity?

Needless to say, I'm buggered if I know.