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TED Talks
Joseph DeSimone: What if 3D printing was 100x faster?
What we think of as 3D printing, says Joseph DeSimone, is really just 2D printing over and over ... slowly. Onstage at TED2015, he unveils a bold new technique -- inspired, yes, by Terminator 2 -- that's 25 to 100 times faster, and...
Curated Video
Methods for Determining Oxygen Content in Air
This video discusses three different methods that can be used to determine the amount of oxygen in the atmosphere. The speaker explains the importance of oxygen and its role in respiration, burning fuels, and obtaining useful products...
Curated Video
Indicator Species: How Different Species Indicate Pollution in the Environment
This video discusses indicator species, which are organisms that can indicate the presence or absence of certain types of pollution in the environment. The video begins by defining pollution and its harmful effects on living organisms....
Khan Academy
Khan Academy: Blood: Oxygen Content
Learn how oxygen content (CaO2) is related to Hemoglobin concentration (Hb), oxygen saturation (SaO2), and the partial pressure of oxygen (PaO2). Rishi is a pediatric infectious disease physician and works at Khan Academy. [11:13]