new video
hot off the press!  
    more about rocket
mass heaters here.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic

The cosmos is bigger than we thought  RSS feed

 
Emerson White
Posts: 1206
Location: Alaska
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
http://www.technologyreview.com/blog/arxiv/26333/

I for one am not worried about it. the universe was already far too large for me to fathom, why should I be upset that it's now known to be bigger than I couldn't ever imagine?
 
tel jetson
steward
Posts: 3381
Location: woodland, washington
81
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Emerson White wrote:
http://www.technologyreview.com/blog/arxiv/26333/

I for one am not worried about it. the universe was already far too large for me to fathom, why should I be upset that it's now known to be bigger than I couldn't ever imagine?


this sort of stuff used to give me panic attacks when I was young.  my culture isn't prone to admitting that some things might not be understandable.

the part that seems weird to me, and it could be due to ignorance, is how an infinite universe is only at least 250 times bigger than the Hubble volume.  wouldn't an infinite universe be infinitely bigger than the Hubble volume?  I guess the "at least" covers that.  but then, maybe the answer lies in the several lifetimes' worth of astrophysics that I'm not likely to ever understand.
 
jacque greenleaf
pollinator
Posts: 489
Location: Burton, WA (USDA zone 8, Sunset zone 5) - old hippie heaven
2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Tel, don't question me any further on this, because I surely don't know, but it seems to me that I once read that, to a physicist, infinitude is not the same thing as size.

One my very favorite Bloom County cartoons shows Oliver staring up at the night sky, declaring "it goes on...and on...and on..." in all the panels except the last one, where he is in bed and says "Infinity is an idea best contemplated with the covers tucked firmly around one's toes."
 
It will give me the powers of the gods. Not bad for a tiny ad:
This is an example of the new permies.com Thread Boost feature
https://permies.com/wiki/61482/Thread-Boost-feature
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!