Browsing 0 - 10 results of 511 programs


Who Is “Mitochondrial Eve?” (Clip)

Running Time:
00:03:07
A special type of genetic material called mitochondrial DNA gets passed directly from mother to child. Largely unchanged from generation to generation, this genetic material gives researchers a way to track populations back in time.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: November 11, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Espanol)

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Learning from Neanderthal DNA (Clip)

Running Time:
00:01:30
Ed Green discusses the key questions researchers hope to answer by analyzing the Neanderthal genome.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: November 11, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: General Science, Life Science/Biology

Links: Transcript (in English)
Transcript (en Espanol)

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What Can We Learn from a Tooth? (Clip)

Running Time:
00:00:59
Tanya Smith explains that invisible microstructure inside teeth creates a durable record of life history, including events such as birth, illness, famine, stress, and death.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: November 11, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Espanol)

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How Do Bones and Teeth Grow? (Clip)

Running Time:
00:01:53
Anthropologist Jean-Jacques Hublin explains that unlike teeth, bones undergo a lifelong process called remodeling, in which they are constantly being destroyed and recreated.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: November 11, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Espanol)

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Virtual Skull Reconstruction (Clip)

Running Time:
00:02:25
Philipp Gunz explains the process of virtual fossil reconstruction, a technique that can reverse the damage done to fossils by time and the elements.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: November 11, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Espanol)

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Why Are Fossils So Rare? (Clip)

Running Time:
00:00:57
Anthropologist Katarina Harvati explains the rare convergence of circumstances that are necessary for the discovery of a fossil specimen.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: November 11, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Espanol)

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When Scientists Disagree (Clip)

Running Time:
00:00:48
Anthropologist Jean-Jacques Hublin discusses the role of conflict and argument in the scientific process.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: November 11, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Espanol)

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Iron Science Teacher: Halloween (Webcast)

Running Time:
00:37:58
In this zany competition teachers have ten minutes to create a science activity from a special secret ingredient. The ingredient this time will be related to Halloween! Join us for some spooky fun!

Project: Iron Science Teacher | Browse all programs for this project
Date: October 31, 2008
Type: Demonstration / Activity
Category: Everyday Science
Academic Disciplines: Physics, General Science, Life Science/Biology


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Reconstructing Neanderthal DNA (Clip)

Running Time:
00:01:38
Evolutionary geneticist Svante Pääbo explains that analysis of ancient Neanderthal DNA is very tricky work, thanks to fragmentation and contamination of genetic material.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: October 26, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Español)

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The Talking Gene (Clip)

Running Time:
00:02:42
Is a single gene, FOXP2, the secret to human speech? Researchers discuss the genetic underpinnings of speech and language.

Project: Evidence: How Do We Know What We Know? | Browse all programs for this project
Date: October 26, 2008
Type: Interview
Category: Popular Science
Academic Disciplines: Life Science/Biology, General Science

Links: Transcript (in English)
Transcript (en Español)

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