jump to last post 1-2 of 2 discussions (4 posts)

Expanding of The Universe

  1. profile image0
    biochemiposted 4 years ago

    The Universe is expanding day by day, is it right? yes that's right, the universe is expanding day by day continuously and this can be proven by the theory of doppler's effect. According to this theory the universe is expanding because the rays coming from the distant stars shifting from blue color electromagnetic rays to rays of red color, called as Red shift. There is a  relationship with wavelength of light and distance it passes. Thus if the wavelength reaching from the universe to our eyes decreases then the distance must be of increasing order. Thus shifting of light from blue to red indicates the expanding nature of universe.

    1. wilderness profile image97
      wildernessposted 4 years agoin reply to this

      Distance has nothing to do with it.  A red shift in the light, however, indicates that it is moving away.  No indication of how far away it is, just that it is moving away

  2. Zelkiiro profile image95
    Zelkiiroposted 4 years ago

    We've known that the universe is expanding since, like, the 1930s. I wasn't aware that this was news.

    1. Kathryn L Hill profile image82
      Kathryn L Hillposted 4 years agoin reply to this

      It is to the newcomers!