There is another way light can be redshifted besides the doppler effect – gravitational redshifting. In physics and general relativity, gravitational redshift (known as Einstein shift in older literature) is the phenomenon that electromagnetic waves or photons travelling out of a gravitational well (seem to) lose energy. This loss of energy corresponds to a decrease …
DrNoGods wrote: ↑Thu Nov 10, 2022 1:29 am There’s no need for any external signals to have these reactions take place … they will naturally occur due to the local behavior of the atoms and molecules involved according to the laws of chemistry. If the properties of dark energy (whatever that actually is if it …
7:26 I’m thinking more and more in the direction that time is fundamental is not emergent. Differentiated from space? Yes. ~ Lee Smolin (American theoretical physicist, a researcher at the Perimeter Institute for Theoretical Physics, and an adjunct professor of physics at the University of Waterloo) https://debatingchristianity.com/forum/viewtopic.php?p=1098866#p1098866
Image of “Pillars of Creation” from Webb telescope. https://webbtelescope.org/contents/medi … ?news=true otseng wrote: ↑Fri Oct 28, 2022 10:00 am Later, I’ll post arguments why I believe the space-time fabric cannot be expanding. Summary of arguments why space-time fabric is not expanding: 1. The space-time fabric is a model. It is not something that actually exists. …
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I had defined natural as “something as part of our 3 dimensional space-time that is empirically detectable”. Extranatural is something that is not part of our 3 dimensional space-time or something that is not empirically detectable. With the idea of the space-time fabric expanding, there are multiple levels of the extranatural being introduced. One is …
Before discussing more about the expansion of the space-time fabric, want to discuss what exactly is the space-time fabric? https://www.sciencephoto.com/media/7627 … me-artwork In physics, spacetime is a mathematical model that combines the three dimensions of space and one dimension of time into a single four-dimensional manifold. Spacetime diagrams can be used to visualize relativistic effects, …
Astronomers most often use redshift to determine the distance of galaxies. “Astronomers also use redshift to measure approximate distances to very distant galaxies. The more distant an object, the more it will be redshifted.” https://lco.global/spacebook/light/redshift/ “Astronomers use redshifts to measure how the universe is expanding, and thus to determine the distance to our universe’s most …
Another problem with the Big Bang since it originally started from a singularity is that it originally was a black hole. And nothing can escape a black hole. The singularities that appear inside black holes pose a big problem for physicists. Crossing a black hole’s event horizon is like jumping into a river upstream of …
With the heat death, the entire universe is at a uniform temperature. Because there is no temperature differences at any two points in the universe, no thermodynamic work is possible. Maximum entropy has been reached. On the other end of the timeline, at the beginning of the universe, it began in a homogenous state as …
Continuing with post 1483 on entropy… The second law of thermodynamics states: The second law may be formulated by the observation that the entropy of isolated systems left to spontaneous evolution cannot decrease, as they always arrive at a state of thermodynamic equilibrium where the entropy is highest at the given internal energy. An increase …