http://www.sas.upenn.edu/home/news/sixtysec_lectures_archive.html

Every spring and fall, SAS faculty take a minute out on Locust Walk to share
their perspectives on topics ranging from human history and the knowable
universe, to fractions and fly-fishing. While not every speaker makes it under
the one-minute mark, they all deal with their chosen subjects with intellectual
agility and wit.

[This text taken from the website]


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