Search results

If the universe is modelled as a fluid, without viscosity and heat-conductivity, a stress tensor is used involving density and pressure. I can understand (I think) the significance of density (the density of matter on a scale rather larger than the galactic scale); what is the significance of...

If the universe is modelled as a fluid, without viscosity and heat-conductivity, a stress tensor is used involving density and pressure. I can understand (I think) the significance of density (the density of matter on a scale rather larger than the galactic scale); what is the significance of...