Sorry to be so long in replying.
No ai problema
... thought I would receive an email when my topic received posts.
Hou hafta click on "Notify…" under "Preview"
….yes you are exactly correct. Your explanation of my query is clearer than mine.
Encouraging, thank you Bev. Wish my postings were as clear to certain others
By the way Wikipedia states "blue shift" means either a red shaft or a blue shift.
Thank you for that. It's not everyday….
….Since the universe is expanding…. then the colour change should be to the longer wavelengths; ie, the red end not the blue end?
Yes as Ros confirms it is toward the red end
…. it would be just as easy to say red shift.
That would make more sense wouldn't it