puzzles | Portside

We need to say ‘NO’ from day one to dictatorial ambition and repressive actions. Please click to help Portside to inform, analyze and mobilize in the year ahead.

September 25, 2020

Friday Nite Videos | September 25, 2020

Portside

How Trump Plans to Win No Matter What. Drive-By Truckers | 21st Century USA. RBG Crowd Greets Trump With 'Vote Him Out!'. 113 Reasons REPUBLICANS Aren't Voting for Trump in 2020. P vs. NP and the Computational Complexity Zoo.

P vs. NP and the Computational Complexity Zoo

September 25, 2020

There's hard problems, and then there's really hard problems. But it's hard to pin down the difference between them.

December 10, 2017

The Geometry Vanishes

Jason England Cosmos

Magicians have long taken advantage of obscure mathematical principles in creating interesting puzzles and illusions.

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