Science & Engineering Podcasts

Texas A&M Engineering ~ Engineering Works
http://engineeringworks.tamu.edu/

NPR's Science Friday Podcast http://www.sciencefriday.com/feed/

Science AT NASA
http://science.nasa.gov/podcast.htm

Science and Society
http://www.scienceandsociety.net/

Quirks and Quarks (CBC Radio)
http://www.cbc.ca/quirks/

Nature
http://www.nature.com/nature/podcast/index.html