• Follow us on Twitter @buckeyeplanet and @bp_recruiting, like us on Facebook! Enjoy a post or article, recommend it to others! BP is only as strong as its community, and we only promote by word of mouth, so share away!
  • Consider registering! Fewer and higher quality ads, no emails you don't want, access to all the forums, download game torrents, private messages, polls, Sportsbook, etc. Even if you just want to lurk, there are a lot of good reasons to register!

Evolution or Creation?

Jump to latest Follow Reply
Sort by date Sort by votes
Much of understanding the Big Bang is extrapolating between knowledge of particle physics today, and projections from the mathematical model of an expanding universe in general relativity. The Einstein equations give us a mathematical model for describing how fast the Universe would expanding at what size and time, given the energy density of matter and radiation at that time. We base our guesses about the matter and radiation density of the early Universe based on the ancient light reaching us from the past in our night skies, and what we have learned about elementary particle physics, through theory and experiment. We know from duality relations between string theories that spacetime geometry is not fundamental, but emerges as we zoom out to distance scales larger than the Planck length. Physics at the Planck scale may be literally unknowable. But this is still work in progress. We'll keep you posted on later developments. Some time after the Planck era, cosmologists believe there was a period called the Inflation Era, between 10-12 and 10-10 seconds is where the Big Bang officially begins. In the Einstein equations of general relativity, the expansion of the Universe can be driven by energy density in the form of matter and radiation. During the first phase of the Big bang, the radiation part of the energy density is so much bigger than the matter part of the energy density that we can forget matter exists, at least for a while.
 
Upvote 0
SparkyOSU;814141; said:
Much of understanding the Big Bang is extrapolating between knowledge of particle physics today, and projections from the mathematical model of an expanding universe in general relativity. The Einstein equations give us a mathematical model for describing how fast the Universe would expanding at what size and time, given the energy density of matter and radiation at that time. We base our guesses about the matter and radiation density of the early Universe based on the ancient light reaching us from the past in our night skies, and what we have learned about elementary particle physics, through theory and experiment. We know from duality relations between string theories that spacetime geometry is not fundamental, but emerges as we zoom out to distance scales larger than the Planck length. Physics at the Planck scale may be literally unknowable. But this is still work in progress. We'll keep you posted on later developments. Some time after the Planck era, cosmologists believe there was a period called the Inflation Era, between 10-12 and 10-10 seconds is where the Big Bang officially begins. In the Einstein equations of general relativity, the expansion of the Universe can be driven by energy density in the form of matter and radiation. During the first phase of the Big bang, the radiation part of the energy density is so much bigger than the matter part of the energy density that we can forget matter exists, at least for a while.
Click to expand...

My brane hurts. :wink2:
 
Upvote 0
You must log in or register to reply here.
Back
Top