DNA Folding
Paul Rothemund folds DNA into shapes and patterns. Which is a simple enough thing to say, but the process he has developed has vast implications for computing and manufacturing. Rothemund compares genetic programs to computer programs. He uses many examples to explain the molecular programs underlying biology. DNA origami is being used to do complex molecular computations.
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Molecular Genetics: The Protein vs. DNA Debate
The protein vs. dna debate - Professor George Wolfe discusses molecular genetics and the protein vs. DNA debate in this video from Thinkwell's online Biology series. Run time 09:23.
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Introduction to Stoichiometry
Instructor introduces Stoichiometry, where chemists study the relationship between reactants and products in a balanced chemical reaction. Instructor uses a black screen to write with his cursor and uses different colors to highlight points. According to instructor, this is high school chemistry.
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Formation of a Star Cluster
Video is from UK Astrophysical Fluids Facility.  An animated scenario about the formation of stars in a cluster and the evolution of a cluster itself. A star that is being formed makes a chain reaction and other stars are born.  Video is of great quality.  There is no talking, but music plays in the background.  This video is appropriate for fourth grade through high school.
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Owl Pellet Hands-On Activity
Students in Egypt discover predator/prey relationships and population dynamics as they dissect owl pellets.  An English translator repeats to the audience the teacher's instructions.  She clearly explains the step-by-step process as the class works outdoors, on the ground.  Required tools are shown and named before they are used.   Students break apart owl pellets, take away the fur, and find bones of animals the owl has eaten.  Bones are then compared to a chart showing the bones of a
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Twinkle,Twinkle, Little Star - Simple Animation
The popular nursery rhyme shown in a colorful animation with little movement. The animation simply shows a little boy's happy reaction when he sees the stars in the sky.
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What Is Cellular Respiration?
Cellular respiration is the chemical reaction that helps a person
to turn the sugar in food into energy. Find out how cellular respiration
is related to photosynthesis with information from a science teacher in
this video.


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Learn about the Maillard Reaction with Cooking
Believe it or not, steak, coffee beans, caramel, and toast have something in common. It's called The Maillard Reaction and it is the reason that things get browned when they are heated. It is a chemical reaction of sugars with amino acids. Dr. Kiki helps explain this process.  Run time 03:38

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Where Does Nuclear Energy Come From?
Nuclear energy comes from a chain reaction involving uranium,
plutonium and fissile where neutrons collide and produce millions of
small reactions that combine in less than a second. Discover the origin of nuclear energy with interesting information from a science
teacher in this video.

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Demo of Action and Reaction
See action and reaction demonstrated with a tug of war. The force of the tug of war is measured with scales. This video is a demonstration explained by a teacher, Paul Hewitt, in front of the classroom.  This is a brief clip from the DVD series "Conceptual Physics." Run time 01:35.
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How to Blow Up a Balloon With Baking Soda & Vinegar
Explanation and demonstration of blowing up a balloon with baking soda and vinegar. Includes an explanation of the chemical reaction (release of CO2) and notes that CO2 is heavier (denser) than air. Closed Caption included at the bottom. Addresses chemical reactions and density. Run time 2:22
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Malaria: No Ordinary Mosquito Bite
A video showing the dangers of Malaria, how easily it can spread, and it's effects on humans. It also explains why even Americans should be concerned about the disease. Animations illustrate what is happening at the molecular level.
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Awesome VIP Jet Pack
Shows a jet pack in operation. No information is offered. At best this would be a good video to start action-reaction studies or to motivate students to look for inventions of their own.

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How Leavening Works
Have you ever wondered why some cookies stay flat and some rise? Wonder no more. Dr. Kiki explains everything you wanted to know about chemical leavening agents. The fast action of baking powder and baking soda relies on a process known in chemistry as acid-base reaction.  In doing so, water and a Run time 05:18.
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Emmanuel Kreike, Princeton University: Beyond Words: Environmental History, Digitization and GIS
Lunch 'n Learn presentation: How the integration of digital tools and Geographical Information Systems (GIS) has the potential to add dramatically to the capacity of the humanities to more fully understand and explain the dynamics of environmental change. More info: http://blogs.princeton.edu/itsacademic/2008/03/beyond_words_environmental_history_digitization_and_gis.html
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Emmanuel Kreike, Princeton University: Beyond Words: Environmental History, Digitization and GIS PDF
Lunch 'n Learn presentation: How the integration of digital tools and Geographical Information Systems (GIS) has the potential to add dramatically to the capacity of the humanities to more fully understand and explain the dynamics of environmental change. More info: http://blogs.princeton.edu/itsacademic/2008/03/beyond_words_environmental_history_digitization_and_gis.html
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Steven Adams: Research Hacks - TIps & Tools for the Busy Scholar for the Busy Scholar
Lunch 'n Learn presentation: The vast print and online resources of the Princeton University Library can be a bit overwhelming to both nascent and seasoned scholars. Most scholars and researchers are so busy with their daily responsibilities that there’s little opportunity for exploration and staying current with new technologies and resources. In this talk, Steven Adams, the Biological and Life Sciences Librarian and Interim Psychology Librarian, will show you how to establish a system that
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Sam Wang: The Princeton Election Consortium - A First Draft of Electoral History - February 11, 2009
Lunch 'n Learn presentation: How we experience political races is dominated by opinion polls. Polling data can be confusing because of their sheer number. In 2008, hundreds of polls were released during the Presidential campaign. Is there a way to cut through the resulting noise? Four years ago Dr. Wang devised a statistical approach to analyze state polls to get a single, easy-to-understand snapshot of the race, viewed from the point of view of the Electoral College. In 2008, this approach mad
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Sam Wang: The Princeton Election Consortium - A First Draft of Electoral History PDF - February 11,
Lunch 'n Learn presentation: How we experience political races is dominated by opinion polls. Polling data can be confusing because of their sheer number. In 2008, hundreds of polls were released during the Presidential campaign. Is there a way to cut through the resulting noise? Four years ago Dr. Wang devised a statistical approach to analyze state polls to get a single, easy-to-understand snapshot of the race, viewed from the point of view of the Electoral College. In 2008, this approach mad
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Matthew Botvinick: Computer Modeling of the Mind and Brain - May 6, 2009
Lunch 'n Learn presentation: Brain ==> Computation ==> Behavior. Matthew Botvinick's lab works at the intersection of neuroscience, psychology and computer science, seeking to clarify the computational and neural foundations of human behavior. In pursuit of this mission, they employ a diverse set of research tools, including functional neuroimaging (fMRI), behavioral techniques (reaction time, error, and decision analyses), and computational modeling (neural networks, reinforcement learning mod
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