Uploaded January 2015 | Updated September 2026, 1 week ago

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Subscribe to the Podcast: goo.gl/CemLaj
Grey: youtube.com/user/cgpgrey
Brady: youtube.com/user/numberphile

Discussion: reddit.com/r/CGPGrey/comments/28zhut/hi_15_books_made_of_paper

Brady's birthday presents, great expectations, libraries, humbling experiences, the world cup and the problems of viral videos. This, apparently, is the show.

Celestia: shatters.net/celestia

Absolutely MASSIVE explosion for the construction of the ESO: space.com/26305-extremely-large-telescope-mountain-blast.html

Brady ESO video: youtube.com/watch?v=450jt8LlcnY

The Amazon Fire Phone: amazon.com/Amazon-Fire-Phone-32GB-AT/dp/B00EOE0WKQ

Hello Internet Episode Length: desmos.com/calculator/yge6cyp8f8

Grey's Kindle Paperwhite review: cgpgrey.com/blog/kindle-paperwhite-review-brighter-better-fatter

Typographic alignment: en.wikipedia.org/wiki/Typographic_alignment

LaTeX: en.wikipedia.org/wiki/LaTeX

British Museum: upload.wikimedia.org/wikipedia/commons/2/2e/British_Museum_Dome.jpg

British Museum Reading Room: upload.wikimedia.org/wikipedia/commons/d/d3/British_Museum_Reading_Room_Section_Feb_2006.jpg

Salt Lake City public library: upload.wikimedia.org/wikipedia/commons/b/ba/SLC_public_library_interior.JPG

Humblebrag: urbandictionary.com/define.php?term=humblebrag

Call Me Ishmael: callmeishmael.com

Star Trek Voyager: amazon.com/gp/product/B00062IDDS/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B00062IDDS&linkCode=as2&tag=hellinte-20&linkId=A3MY62FJU6ZGPJTQ

Hello Internet on YouTube: youtube.com/user/HelloInternetPodcast

⌘X: WWDC: youtube.com/watch?v=yq-HVi97NiQ&list=PLe_b-HAZD1pWd4MBBaFP_6GJhVBn82dDQ

Brady's viral cake video: youtube.com/watch?v=wBU9N35ZHIw&list=UUoxcjq-8xIDTYp3uz647V5A