Dark Matter, Cosmic Background Radiation, and the Birth of the First Stars - ||Prof. Tracy Slatyer||

แชร์
ฝัง
  • เผยแพร่เมื่อ 3 ก.พ. 2025

ความคิดเห็น • 2

  • @hussainphysics
    @hussainphysics 11 วันที่ผ่านมา +1

    Excellent work Professor tracey 🎉😊

  • @shawns0762
    @shawns0762 10 วันที่ผ่านมา

    Dark matter is just regular mass that is dilated. Dilation/gamma is the phenomenon our high school teachers were talking about when they said "mass becomes infinite at the speed of light". This does not mean mass increases, it means mass becomes spread throughout spacetime relative to an outside observer. Time dilation is just one aspect of dilation, it's not just time that gets dilated. Even mass that exists at 75% light speed is partially dilated.
    It occurs wherever there is an astronomical quantity of mass. This includes the centers of very high mass stars and the overwhelming majority of galaxy centers.
    Our own galactic center is 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. In other words that mass is all around us. It's the "missing mass" needed to explain galaxy rotation curves.
    Dilation does not occur in galaxies with low mass centers because they don't have enough mass to achieve relativistic velocities. It has been confirmed in 6 ultra diffuse galaxies including NGC 1052-DF2 and DF4 to have no dark matter. In other words they have normal rotation rates.