What is dark matter? If it exists, then it is the most abundant matter in the universe. This would make its discovery one of the greatest in the history of science.
One of the leading figures who first evidenced its existence was the astronomer Vera Rubin. Rubin isn’t as well-known as Sir Isaac Newton, but she should be. After all, Rubin’s study of the rotation of galaxies transformed our understanding of the universe and forced astronomers to fundamentally rethink everything they thought they knew.
Rubin discovered that objects at the edge of the Milky Way were moving at the same speed as others nearer its centre – much faster than most astronomers would have expected.
But what was affecting these objects at the edge of galaxies, and why – like a pawn gaining the powers of a queen in chess – did it change the game entirely?
That’s where dark matter comes in…
Find out about dark matter and how Vera Rubin forced us to rethink our understanding of the universe in this explainer video from iluli by Mike Lamb – making sense of technology, one byte at a time.
*Note:* If this looks familiar, that’s because it’s an updated version of an iluli video published earlier this year. The previous version incorrectly stated that Vera Rubin’s discovery could not be explained by Newtonian mechanics. This isn’t actually the case and the error has now been corrected.
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I’m confused how does this have 19k views but 187k likes
Dark matter isn’t science, it’s science fiction.
Is a Queen a Woman 🆘👀🏴☠️’s…
Its important to note that orbits around the centers of galaxies aren't evidence for dark matter, but a problem that inspired a hypothetical solution that explains the discrepancy between the accepted laws of physics and observational data.This topic requires a look at philosophy of science, specifically a discussion how scientists act when the observation contradicts a hypothesis or a system of them. Proposing hypothetical, unobservable objects blames the observational methodology, while rewriting the laws blames the system.There isn't a clear-cut, nor mathematicaly correct way of solving this and similar problems could be seen with Newtons and Einsteins revolution. Problems such as this one don't have a experimentally or mathematicaly proven solution. This happens because of the limits of the scientific inductive an experimental method.I understand that this is a 5 minute video, but sometimes the reduction of complexity can be misleading.
Why are u getting so low views 😭😭 lemme share this video with my friends
Man I worry that you might lose motivation.
I would suggest making making a colab video with another fellow science youtuber.
or even ask a few of these react streamers to watch your content if you would like to
There is an elephant in the room explanation for those abnormally high star rotation rates. Most people don't know that Einstein said that singularities are not possible. In the 1939 journal "Annals of Mathematics" he wrote –
"The essential result of this investigation is a clear understanding as to why the Schwarzchild singularities (Schwarzchild was the first to raise the issue of General Relativity predicting singularities) do not exist in physical reality. Although the theory given here treats only clusters (star clusters) whose particles move along circular paths it does seem to be subject to reasonable doubt that more general cases will have analogous results. The Schwarzchild singularities do not appear for the reason that matter cannot be concentrated arbitrarily. And this is due to the fact that otherwise the constituting particles would reach the velocity of light."
He was referring to the phenomenon of dilation (sometimes called gamma or y) mass that is dilated is smeared through spacetime relative to an outside observer. "Time dilation" is just one aspect of dilation.
General Relativity does not predict singularities when you factor in dilation. Einstein is known to have repeatedly spoken about this. Nobody believed in black holes when he was alive for this reason.
Dilation will occur wherever there is an astronomical quantity of mass because high mass means high momentum. There is no place in the universe where mass is more concentrated than at the center of a galaxy.
It can be shown mathematically that the mass at the center of our own galaxy must be dilated. This means that there is no valid XYZ coordinate we can attribute to it, you can't point your finger at something that is smeared through spacetime. Or more precisely, everywhere you point is equally valid.
This is the explanation for the abnormally high rotation rates of stars in spiral galaxies, the "missing mass" is dilated mass.
There is no dilation in galaxies with very, very low mass because they do not have enough mass in their centers to achieve relativistic velocities. It has recently been confirmed in 5 very, very low mass galaxies to show no signs of dark matter.
This is virtual proof that dilation is occurring in common spiral galaxies, there can be no other realistic explanation for this fact.
The shape of a galaxy is common in nature. From atoms to our solar system, the overwhelming majority of the mass is in the center. The same must be true for galaxies. Where there is an astronomical quantity of mass there is an astronomical quantity of energy. The night sky should be lit up from the galactic center but it isn't.
The modern explanation for this is because gravitational forces there are so strong that not even light can escape. Einstein's answer would be because the mass there is dilated relative to an Earthbound observer.
Great video!!
WTF the view count is CRIMINALLY LOW 👀
Dear YouTube!
You're doing channel dirty