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  • Video 
    A Forgotten Space Age Technology Could Change How We Grow Food

    A Forgotten Space Age Technology Could Change How We Grow Food

    We're heading for a world population of 10 billion people -- but what will we all eat? Lisa Dyson rediscovered an idea developed by NASA in the 1960s for deep-space travel, and it could be a key to reinventing how we grow food.

    Subjects:
    Food Science
    Keywords:
    Carbon dioxide -- Recycling Food science Food--Biotechnology Sustainable agriculture
    Resource Type:
    Video
     
  • Video 
    Science-Inspired Design

    Science-Inspired Design

    Naming science as his chief inspiration, Mathieu Lehanneur shows a selection of his ingenious designs -- an interactive noise-neutralizing ball, an antibiotic course in one layered pill, asthma treatment that reminds kids to take it, a living air filter, a living-room fish farm and more.

    Keywords:
    Creative ability in science Creative ability in technology Inventions
    Resource Type:
    Video
     
  • Video 
    How Fast Is The Speed of Thought?

    How Fast Is The Speed of Thought?

    Your mortal enemy has captured you and hooked you up to a bizarre experiment. He's extended your nervous system with one very long neuron to a target about 70 meters away. At some point, he's going to fire an arrow. If you can then think a thought to the target before the arrow hits it, he'll let you go. So who wins that race? Seena Mathew examines the speed of thought.

    Subjects:
    Health Sciences and Biology
    Keywords:
    Neurons -- Physiology Thought thinking Brain -- Physiology
    Resource Type:
    Video
     
  • Video 
    The Unexpected Math Behind Van Gogh's "Starry Night"

    The Unexpected Math Behind Van Gogh's "Starry Night"

    Physicist Werner Heisenberg said, "When I meet God, I am going to ask him two questions: why relativity? And why turbulence? I really believe he will have an answer for the first." As difficult as turbulence is to understand mathematically, we can use art to depict the way it looks. Natalya St. Clair illustrates how Van Gogh captured this deep mystery of movement, fluid and light in his work.

    Subjects:
    Physics
    Keywords:
    Turbulence Starry night (Gogh Vincent van)
    Resource Type:
    Video
     
  • Video 
    Lessons From Fungi on Markets And Economics

    Lessons From Fungi on Markets And Economics

    Resource inequality is one of our greatest challenges, but it's not unique to humans. Like us, mycorrhizal fungi that live in plant and tree roots strategically trade, steal and withhold resources, displaying remarkable parallels to humans in their capacity to be opportunistic (and sometimes ruthless) -- all in the absence of cognition. In a mind-blowing talk, evolutionary biologist Toby Kiers shares what fungi networks and relationships reveal about human economies, and what they can tell us about inequality.

    Subjects:
    Biology
    Keywords:
    Mycorrhizal fungi -- Ecology
    Resource Type:
    Video
     
  • Video 
    How I Became a Scientist: From English Literature Major to Science

    How I Became a Scientist: From English Literature Major to Science

    How does an English literature major ultimately end up as a cancer biologist? Varmus tells us of his circuitous path to becoming a scientist to illustrate the many routes that one can follow to a career in science.

    Keywords:
    Physical sciences -- Vocational guidance Biologists -- Vocational guidance
    Resource Type:
    Video
     
  • Video 
    Using Graphs to Explain Motion (Screencast)

    Using Graphs to Explain Motion (Screencast)

    In this screencast, you'll observe two vehicles moving across the screen at different rates then describe the motion. Additionally, you'll select the corresponding graphs of distance vs. time, velocity vs. time, and acceleration vs. time for each vehicle.

    Subjects:
    Physics
    Keywords:
    Speed Motion
    Resource Type:
    Video
     
  • Others 
    Mass Versus Weight

    Mass Versus Weight

    In this learning activity you'll explore the difference between mass and weight.

    Subjects:
    Physics
    Keywords:
    Mass (Physics) Weights measures Weight (Physics)
    Resource Type:
    Others
     
  • Others 
    Construction of Free-Body Diagrams

    Construction of Free-Body Diagrams

    In this learning activity you'll explore a step-by-step process to solve simple free-body diagrams. They identify forces acting in the x or y direction in interactive exercises.

    Subjects:
    Physics
    Keywords:
    Mechanics
    Resource Type:
    Others
     
  • Video 
    What Is Torque? (Screencast)

    What Is Torque? (Screencast)

    Learners read a description of torque and study the factors that cause its magnitude to change.

    Subjects:
    Physics
    Keywords:
    Torque -- Measurement
    Resource Type:
    Video