NOVA

Traveling Salesman

Special | 1m 21s

It may be hard to believe, but just 25 drop-off points means more than 15 trillion, trillion possible routes.

Aired: 10/15/13

Rating: NR

Problems Playing Video? | Closed Captioning

Major funding for NOVA is provided by the David H. Koch Fund for Science, the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

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