Recent content by scott haig

I can see getting a bit confused because of our language: we say "time is passing" etc.--but in the most basic (Newtonian) sense time is just a ratio of distance (a thing we measure) to speed. Nothing is moving when "time moves" and therefore there is no speed of time...

ok but-- I thought the reason Hubble's constant (the simple ratio of recessional velocity to distance) changes with time is because of the time dilatation associated with the increased density (rho) as you go backward in time and the universe is more dense. And similarly there's that scaling...

THANKS MUCH ASTROROYALE- We're chewing this over... s

thanks-but I still need some help with the minutes after big bang-- Is there a "proper time" argument that leads to the tensor that somehow keeps space flat while its density is so high? Is there a negative energy term from a pressure? And what about Einstein energy/dark matter during expansion?

. They understand the classical Schwarzschild radius argument for black hole formation. They have bare rudiments of special and general rel. I sound like an idiot saying "there's this anti-gravity" force that kicks in when the collapsing system gets really big. Any help?