Recent content by Olivia Grace

Thanks very much, that's really helpful! One thing, "the usual figure for the Hubble parameter, at present, is 71 km/second per Mpc which is a bit messy " How did you boil this down to the 1/13.8 billion years? I'm having trouble converting the units to SI ones... Your help is muchly...

Hey thanks!

Thanks for your help so far! My problem is determining the age of the universe from the units I have been given, km/s/Mpc...how does one change these units ino units suitable for the 1/H method?

Do we know what the critical density of the universe is? I always thought we did know, but apparently (according to friend) we don't...

For the age of the universe, I've tried multiplying the constant by 1x10^3, then changing the Mpc into light years..is this correct?

Hi, I'm new to this forum, but saw that everyone was so kind and helpful, so was wondering if anyone could help me with a couple of things.. How does one calculate the age of the universe using Hubble's constant, if the constant is in km/s/Mpc? Do we know the critical density of the...