Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Science

DetlefK

(16,670 posts)

8. The universe is flat on a cosmological scale.

Reply to phantom power (Reply #6)

Thu Nov 8, 2012, 06:15 AM

Nov 2012

That is, distances in the order of magnitude of millions of light-years and bigger. IIRC the cosmic-microwave-background wouldn't adhere to the black-body-spectrum if the metric of the universe were curved.

Edit history

Please sign in to view edit histories.

Recommendations

0 members have recommended this reply (displayed in chronological order):

8 replies

= new reply since forum marked as read

Highlight:

wormholes - how short is a shortcut, really? [View all] phantom power Nov 2012 OP

But what if you view it dipsydoodle Nov 2012 #1

I like that! Stargazer09 Nov 2012 #3

Interesting question Stargazer09 Nov 2012 #2

I seems more likely to me... Speck Tater Nov 2012 #5

The problem with your chord of the cirlce illustration is Speck Tater Nov 2012 #4

The circle is a 1D manifold curved in 2D, so... phantom power Nov 2012 #6

Ah! That makes sense. Speck Tater Nov 2012 #7

The universe is flat on a cosmological scale. DetlefK Nov 2012 #8