Talk:2403: Wrapping Paper
Merry Christmas -- bubblegum (talk) (please sign your comments with ~~~~)
I was reminded of the old http://bjornsmaths.blogspot.com/2005/11/how-to-catch-lion-in-sahara-desert.html
The method of inverse geometry: We place a spherical cage in the desert and enter it. We then perform an inverse operation with respect to the cage. The lion is then inside the cage and we are outside.
Bmwiedemann (talk) 02:41, 26 December 2020 (UTC)