Suppose you're a little creature living on a Möbius strip.
Then after "walking in a circle" (i.e. 2π radians), you will actually be upside-down.
In order to get back to where you started, you have to go around twice!
Check out my neat gif!
pic.twitter.com/1MMvp83IWG
-
Show this thread
-
The Möbius strip therefore doesn't have a well defined "inward" or "outward" pointing direction.
Such surfaces are called 𝙣𝙤𝙣-𝙤𝙧𝙞𝙚𝙣𝙩𝙖𝙗𝙡𝙚4 replies 3 retweets 20 likesShow this thread -
Replying to @InertialObservr
So non-orientable surfaces are surfaces in which a normal vector would flip just by moving it , or how is it exactly defined? And are there other examples of non-orientable surfaces?
1 reply 0 retweets 0 likes
Replying to @AltamimiEmran
It's something in which outward and inward are ill-defined. A klien bottle is another example
6:26 PM - 6 Jun 2019
0 replies
0 retweets
2 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.