Are There Any 3-Landlocked Countries?
17:51
Does "land area" assume a country is perfectly flat?
24:55
How did the 'impossible' Perfect Bridge Deal happen?
12:16
There are NOT 195 countries
23:34
I walked the length of a state (ish)
24:42
What Do Swedes and Norwegians Think of Each Other's Languages?
32:22
Simulating the Evolution of Aging
7:49
The Hidden Pattern in Post Codes
13:10