Portal:Mathematics/Featured picture/2013 06
Appearance
Picture of the month
![](http://upload.wikimedia.org/wikipedia/commons/thumb/3/31/Science_Museum_London_1110529_nevit.jpg/270px-Science_Museum_London_1110529_nevit.jpg)
Credit: Nevit Dilmen
Photograph of a Klein bottle from Science Museum, London.
...Archive | Read more... |
Photograph of a Klein bottle from Science Museum, London.
...Archive | Read more... |