Uploaded November 2022 | Updated September 2026, 3 weeks ago
Cosmic distances aren't just difficult to measure. They're impossible.
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RELATED YOUTUBE VIDEOS
The Cosmic Illusion No One Talks About:
youtu.be/nSJtzn2H3Do
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IMAGE CREDITS
Crab Nebula:
nasa.gov/multimedia/imagegallery/image_feature_1604.html
Cosmic distances aren't just difficult to measure. They're impossible.
________________________________
RELATED YOUTUBE VIDEOS
The Cosmic Illusion No One Talks About:
youtu.be/nSJtzn2H3Do
________________________________
SUPPORT THE SCIENCE ASYLUM
Patreon:
patreon.com/ScienceAsylum
YouTube Membership:
youtube.com/channel/UCXgNowiGxwwnLeQ7DXTwXPg/join
Advanced Theoretical Physics (Paperback):
lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html
Advanced Theoretical Physics (eBook):
gumroad.com/l/ubSc
Merchandise:
shop.spreadshirt.com/scienceasylum
________________________________
IMAGE CREDITS
Crab Nebula:
nasa.gov/multimedia/imagegallery/image_feature_1604.html
![Could Flatland Be CURVED?!
Measuring the curvature of a space takes parallel transport and the Riemann curvature tensor (General Relativity). Lets explore this using Flatland and Lineland, an old tool involving lower-dimensional spaces. Brilliant for 20% off: http://brilliant.org/ScienceAsylum
VIDEO ANNOTATIONS/CARDS
The Ultimate Guide to Relativity:
https://youtu.be/FdWMM6aXpYE
What the HECK is a Tensor?!?
https://youtu.be/bpG3gqDM80w
How Elastic is the Fabric of the Universe?
https://youtu.be/DDwlDZidLSg
RELATED YOUTUBE VIDEOS
PBS Space Time on Space Curvature:
https://youtu.be/D3GVVkPb3OI
Flatland by Carl Sagan:
https://youtu.be/N0WjV6MmCyM
Flatland by What The Bleep?
https://youtu.be/sEVEKL1Fbx0
SUPPORT THE SCIENCE ASYLUM
Patreon:
http://www.patreon.com/ScienceAsylum
Advanced Theoretical Physics (Paperback):
http://www.lulu.com/shop/nick-lucid/advanced-theoretical-physics-a-historical-perspective/paperback/product-24250687.html
Advanced Theoretical Physics (eBook):
https://gumroad.com/l/ubSc
Merchandise:
https://www.scienceasylum.com
HUGE THANK YOU TO THESE PATRONS
Warden of the Asylum:
[Available]
Asylum Counselors:
Matthew OConnor, Nikolaos Vasiloglou II
Asylum Orderlies:
William Morton, Fabio Manzini
Einsteinium Crazies:
Wacky, Eoin OSullivan, Ken Davis, LT Marshall, Ilya Yashin
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Olga Cooperman, Kyle Bowles, Zein Kassim, Rick Dinning, Eugene Boone, Jon Adams, Mr. Orn Jonasar, Vittorio Monaco, Stephen Blinn, Mikayla Eckel Cifrese, Jonathan Reel
OTHER SOURCES
http://www.physics.ucc.ie/apeer/PY4112/Curvature.pdf
https://web.stanford.edu/~oas/SI/SRGR/notes/SRGRLect8_2012.pdf
https://www.asc.ohio-state.edu/mathur.16/grsolprob3.pdf
http://www.physics.usu.edu/Wheeler/GenRel/Lectures/2Sphere.pdf
https://www.preposterousuniverse.com/grnotes/
LINKS TO COMMENTS
https://www.youtube.com/watch?v=DDwlDZidLSg&lc=UgxQxbcX2bKf48i60oR4AaABAg
https://www.youtube.com/watch?v=DDwlDZidLSg&lc=UgxYGriPCFHfKBa37OF4AaABAg
https://www.youtube.com/watch?v=DDwlDZidLSg&lc=UgyakYv7jNKAaujfrWd4AaABAg
IMAGE CREDITS
Earth by GOES-16:
https://www.nesdis.noaa.gov/content/goes-16-color-composite-images Could Flatland Be CURVED?!](https://i.ytimg.com/vi/WcCsELqZnE0/mqdefault.jpg)









