Big Bang 2of4: Dark Energy and the Early Universe

Lecture by Professor Richard Muller of the University California, Berkeley. Taken from Lecture 26 of the spring 2006 webcasts of Physics For Future Presidents. Also known as Descriptive Introduction to Physics. Empahsis is on conceptual understanding, rather than mathematics.

All Lectures:
http://www.youtube.com/view_play_list?p=095393D5B42B2266

Category:

Education

Tags:

• big
• bang
• expanding
• universe
• creation
• physics
• science
• infinity
• relativity

[juanarruti]

If there is infinite space is it not safe to assume time is infinite?

[theinquisitor]

@juanarruti, even if it is, the lifetime of matter is not infinite. Eventually even protons and neutrons will decay into energy. So the universe may go on forever as an ever thinning void of homogeneous energy.

[TotalGameMaster]

it was actually 13.7 billion years ago not 14 billion just saying

[theinquisitor]

@TotalGameMaster, actually it's 13.7 billion, with error bars of plus or minus 2 million. Just saying : )

[Redmilitiageneral]

God is a fictional storybook character who gives hope to those who cannot bear the fact that we do not go to some eternal paradise when we die. Your matter is simply returned to the universe from which it was created. GET OVER IT!

[benjaminjean1984]

I don't think our universe's singularity should be the only bang in the galaxy, to believe again that our universe is the centre of the universe or only universe like ptolmy thought and religious believers enforced, years ago we where @ the centre of the universe just because its a shady part in science---who is to say that we r actually within an atom within another universe and so on---Our universe boundaries begins with the blank length and ends in another bigger universe's blank length---

[yellowlght]

Maybe it's the atomic structure of space itself

[Johnnysandler]

We should look at in the full spectrum. Maybe it is aftershock rippling against nothing.

[benjaminjean1984]

After all its just space and time.