Recent content by Fest3er

Was there a beginning to the cycle? Or like God and matter and energy, it always was and always will be?

Something to consider. T=0 can be a point in time, used as a reference. Negative numbers are just points in time before the reference. But that makes for an uninteresting discussion. It’s far more entertaining to consider T=0 as the moment of creation.

That would suggest that time doesn’t universally flow in the same direction. Time could flow forward for some particles, and at the same time flow backwards for others (antiparticles). Hurts my brain.

Assuming the universe is finite, beyond the border there must be is nothing. If there were something, it would be part of the universe. The great void would have no pressure, since pressure would be something. Since the universe has pressure, it would rush to fill the void. Adding something...

That makes sense. It explains gravitational lensing. If light (energy) had no gravity, it’s path wouldn’t bend as it passed a body of mass.

Mass has gravity. If that mass is completely converted to energy, does that energy retain its gravity, or is the gravity converted to something else? If gravity is converted, would the loss of gravitational force in the Universe explain the acceleration of expansion, as more and more mass in...

Presumably the universe exists in the grand daddy of all gravity wells. I imagine that as light approaches the edges of that gravity well, the curvature of space-time would bend the light enough to confine it to within the “sphere”. But that would suggest the universe is a black hole. Hurts...

If the universe contains all matter and energy, where do the additional “drips” come from? Even if you found a source of addional “drips”, your bucket is a fixed volume. An expanding universe is a growing volume. Accelerating the rate of expansion means that the force causing the expansion...

And yet, no additional force is being added to the system, to cause an acceleration to the ever growing volume.

Assuming accelerating expansion of the universe truly is happening, some additional force must be being added to the system. A constant force, spread over an ever increasing volume, would not cause an accelerating expansion. Think the balloon analogy. As you blow into the balloon with...

But could you measure the gravitational force produced by the magnetic field?

Could one create a strong, massless energy field (perhaps magnetic) and measure it’s gravity?

I read a partial about time reversal symmetry breaking at higher temperatures. Time-reversal symmetry (TRS) is the idea that the laws of physics are the same whether time runs forward or backward. In certain materials, such as this Kagome superconductor, this symmetry can be violated, meaning...

Since angular momentum caused by the collapse of the black hole causes the spin, if the spin is finite, the collapse must also be finite (I.e. - it cannot collapse into a singularity). But how far can it collapse and how fast can it spin? If the spin were fast enough that centripetal force...

Can a black hole spin fast enough that centripetal force overcomes its gravity?