SciTech Now

Sunday, January 7, 05:30 pm on KPBS

Duration: 0:26:46

Description: On this episode: Ancient human teeth can tell us a lot. Hidden inside each set of teeth are clues about their owner's behavior and ancestry as well as what really made up the paleo diet. Shara bailey, Associate Professor of Anthropology at New York University, reads the topography of teeth to better understand the origins and lineages of humans; Dave Mosher is a science reporter who has written for Scientific American, Popular Mechanics, National Geographic News and Discovery.com. Throughout his career he has watched humans and robots launch into space, flown over the North Pole to catch a total solar eclipse, and toured a cutting-edge nuclear reactor. He joins Hari Sreenivasan to discuss how a dwindling supply of plutonium threatens deep space exploration; The Kootenai (koo-ten-ay) river, which criss crosses the U.S. Canada border is home to the endangered white sturgeon and is in need of attention. Now, the Kootenai tribe of Idaho is undertaking a massive habitat restoration project. The tribe is teaming up with U.S. geological survey researchers and using acoustic monitoring equipment to figure out how much sediment is in the river and how to reshape the river to help the sturgeon; Pennsylvania State University students participate in a contest to condense years of research into a two minute pitch. The competition helps students hone communication skills and is even dubbed as "Science Speed Dating."

[HD]

Broadcast In: English