How to Turn a Sphere Inside Out (1994) [video]
Posted4 months agoActive4 months ago
youtube.comResearchstory
calmpositive
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MathematicsGeometryTopology
Key topics
Mathematics
Geometry
Topology
A 1994 video demonstrates how to turn a sphere inside out, sparking interest in mathematical concepts among HN users, with a single comment expressing fascination.
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Light discussionFirst comment
1d
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26-28h
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1
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- 01Story posted
Sep 23, 2025 at 1:12 PM EDT
4 months ago
Step 01 - 02First comment
Sep 24, 2025 at 4:28 PM EDT
1d after posting
Step 02 - 03Peak activity
1 comments in 26-28h
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Step 03 - 04Latest activity
Sep 24, 2025 at 4:28 PM EDT
4 months ago
Step 04
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Discussion (1 comments)
Showing 1 comments
downbootsAuthor
4 months ago
Now in HD, and cheaper than ever before!
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ID: 45350000Type: storyLast synced: 11/17/2025, 1:10:13 PM
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