Philosophy Now Forum

Ginkgo wrote: ↑Fri Jun 26, 2015 6:19 am

Systematic wrote:

Ginkgo wrote: It doesn't. It is impossible to accelerate a mass to the speed of light. It wold require an infinite amount of energy to do so. This idea is probably related to a mathematical explanation, or logical outcome of such a scenario. It isn't possible.

The speed of light is finite, therefore it would take a finite amount of energy to reach it.

This connection between energy and mass, known as mass-energy equivalence, was immortalized in Einstein’s equation E = mc2, where E stands for energy, m stands for mass and c is a constant (which happens to be equal to the speed of light). Actually, E = mc2 is just the simplest case scenario, that for a body or mass at rest. For a body in motion, with a velocity v, the equation becomes E = Einstein's Mass-energy equivalence equation. We have already seen that the Lorentz factor γ ≡ Lorentz Factor, so we can therefore also say that E = γmoc2 (where mo is the rest mass of the object). As can perhaps be reasonably easily deduced from these equations, as the velocity (v) approaches the speed of light (c), energy (E) approaches infinity, indicating that the body would in fact require an infinite amount of energy to accelerate to the speed of light. We can also see how (as mentioned in a previous section) the mass of a moving object becomes greater and greater as its velocity increases until, at the speed of light, it becomes infinite.

Taken from The Physics of the Universe.com

promethean75 wrote: ↑Thu Mar 02, 2023 2:11 am @ 36:00 Harris, Sam presents his 'The Worst Possible Misery For Everyone' thesis as a simplified foundation for 'objective morality'. the fact that everyone but the most abnormal of people naturally prefer that TWPMFE be avoided is sufficient as a foundation for any morality u want to call 'objective'.