The Rule of 411

It’s a magic number.


“Permeating every cubic centimeter of space in the universe, or approximately half the size of the last joint of your ring finger, there are 411 photons left over from the Big Bang in that volume.”

— Ethan Siegel


(If you were being circumspect, you might just call them “ancient photons.”)

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

Create a website or blog at WordPress.com

Up ↑

%d bloggers like this: