Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
raldi
on Oct 6, 2021
|
parent
|
context
|
favorite
| on:
Conterintuitive facts in mathematics, CS, and phys...
I don't get what thought that picture is supposed to provoke.
Kwantuum
on Oct 6, 2021
|
next
[–]
The earth has "holes" and as such the proof of that statement for a sphere does not apply to the earth.
lasc4r
on Oct 6, 2021
|
parent
|
next
[–]
Thank you, something about this didn't make total sense to me.
ruuda
on Oct 6, 2021
|
prev
[–]
Borsuk-Ulam applies to surfaces homeomorphic to a sphere, but the picture shows that the earth's surface is a sphere with at least one handle, a donut with at least one hole.
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search: