101–110 of 242 posts
1.3 Billion stars? What percent of our galaxy is that? Does the coverage go to the other side? This must be an incredible map.
About 1%.
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What you wrote has no basis in reality whatsoever. In fact, nerve conduction is slower in children than adults due to underdeveloped myelination.
Furthermore, "constrained by physics" would imply the speed of light, which is so much faster than nerve conduction...
A few years ago, a published article suggested an alternative to the universe expanding is increasing mass. Older objects increase their mass and therefore are red shifted. Why is this alternative plausible theory recieving such little attention? Edit: changed mass decay to increase in mass. I misremembered the theory.
Hm - but older from what perspective? Since light travels at c, aren't all journeys light takes instantaneous from the point of the photon? My understanding as well being that all known natural processes (like beta decay) are time-dilated at relativistic speeds. Also, how would this jibe with the parallax-based observations mentioned in the article?
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Zero entropy
Maximum entropy, I think? I've wondered about this. How can something which is having a cold death (zero kelvin) also have maximum entropy? But I am not at all an expert.
It's also worth noting that the entropy can be very large, even if the temperature is absolute zero. (You just need a system with a lot of different ground-states that all have the same energy.)
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Maximum entropy, I think? I've wondered about this. How can something which is having a cold death (zero kelvin) also have maximum entropy? But I am not at all an expert.
Maximum entropy merely implies that the temperature everywhere is the same (any other situation would necessarily have a lower entropy). You could in theory have maximum entropy at 1000K. Our universe has a ton of empty space, and not all that much energy, so the temperature at which it equilibriates is very low. It's also expanding, so the hypothetical equilibrium temperature is decreasing all the time. It's also wo…
It would indeed be incredibly exciting if it would lead to a less silly explanation of the redshift than "universe is expanding".
> It would be incredibly exciting if there was new physics It would indeed be incredibly exciting if it would lead to a less silly explanation of the redshift than "universe is expanding".