2006-08-25 00:00:00 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Hubble's constant was believed to be constant when discovered. Although it can change with time it is still useful. Something that is a constant in a snapshot (of the universe?) need not be constant in a motion picture (Big Bang?) to help scientists understand the cosmos, right?
2006-08-25 00:23:47 · answer #1 · answered by Kes 7 · 0⤊ 1⤋
Kes has it right. The Hubble constant simply describes the rate of expansion at the current time.
Constant aren't; variable won't.
2006-08-25 08:15:05 · answer #2 · answered by mathematician 7 · 1⤊ 0⤋
Hubble's constant doesn't change. That's why it's called a constant. What does change is our estimate of its actual value.
2006-08-25 07:05:44 · answer #3 · answered by stevewbcanada 6 · 0⤊ 0⤋
Have no idea what it is, but maybe when it was first sorted it was thought to be a constant.
Or it has a constant rate of change, or something like that.
I would find out what it is but I need sleep.
2006-08-25 07:07:03 · answer #4 · answered by earthangel_ghost 3 · 0⤊ 1⤋