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  • Global Location Made Easy

    Today, finding your exact position on the planet is as easy as looking at your phone. But in the past, it required much less portable equipment and the night sky. How did this...

  • The Best Tickers are Atoms

    When you need a clock of utmost accuracy, you need an atomic clock. Nobel Prize winner William Phillips explains how scientists use atomic clocks to get the most accurate bang for...

  • Magnetic Magic

    Magnets have always instilled wonder in both children and adults alike with their seemingly magical properties. In this clip from the 2010 festival, Nobel Prize winning physicist...

  • Why Are Scientists Most Like Children?

    Children are naturally curious about the world around them. They experiment, explore, and discover without even thinking about it. Nobel Prize winning physicist William Phillips...

  • Can We Reach Absolute Zero?

    Absolute zero is the temperature at which entropy reaches its minimum value, and all energy has been taken out of a system. But is it reachable? Can anything ever be that cold?...

  • How Many Stars Are There in the Sky?

    Travel back in time as Galileo Galilei (played by Mike Francis) relates the story of when he first turned his telescope to the sky in order to count the stars—and finds the task...

  • Let’s Talk about Frogs

    There are roughly 1.75 million identified frog species in the world, and biologists estimate that there are between 5 and 50 million species that are still completely unknown to...

  • The Mathemagician

    In this highly entertaining performance combining math with magic, Arthur Benjamin—aka, the the “Mathemagician”—displays amazing feats of mental mathematical gymnastics and...

  • Mental Math

    The Mathemagician explains how multiplying numbers from left-to-right in your head (instead of right-to-left, as you do it on paper), makes mental math easier, and multiplying any...

  • Cool Job: The Neuroscientist

    Cool Jobs: Meet the people with the coolest jobs in the world. Watch as neuroscientist André Fenton describes the life of a modern brain scientist, leads a group of students...

  • Trailer: Icarus at the Edge of Time

    What if Icarus traveled not to the sun but to a black hole? This 40-minute 62-piece orchestral work is a mesmerizing adaptation of Icarus at the Edge of Time, Brian Greene’s...

  • Sudoku on Steroids

    The Mathemagician demonstrates how to create a magic square—a special grid of numbers in which all rows, columns, and diagonals sum to the same constant—using a birthday from...

  • Quick: Multiply by 11

    The Mathemagician reveals the surprisingly easy trick behind instantly multiplying any two-digit number by 11. It’s really as simple as 2 + 2.

  • Astronaut Diary: Life in Space

    Astronauts who’ve lived on the International Space Station and “walked” in space tell all: what it’s like to ride on a space ship, and to eat, sleep, exercise, and even do...

  • Cool Job: The Medical Ecologist

    Cool Jobs: Meet the people with the coolest jobs in the world. Medical ecologist Dickson Despommier describes the Vertical Farm Project, a movement to promote urban renewal while...

  • Cool Job: The Amphibian Biologist

    Cool Jobs: Meet the people with the coolest jobs in the world. Amphibian biologist Tyrone Hayes describes the development of frogs from eggs into tadpoles into fully grown adults,...

  • Cool Job: The Cave Microbiologist

    Cool Jobs: Meet the people with the coolest jobs in the world. Microbiologist Hazel Barton goes spelunking in sticky mud, camping underground, and rope climbing in a atrium—all...

  • Cool Job: The Art Historian

    Cool Jobs: Meet the people with the coolest jobs in the world. The art historian Maurizio Seracini describes how he uses infrared, ultraviolet, and X-radiation to uncover...

  • Cool Job: The Alien Hunter

    Cool Jobs: Meet the people with the coolest jobs in the world. Jill Tarter, director of the SETI Institute, explains how she searches for intelligent life on other planets, what...

  • Cool Job: The Aquatic Biologist

    Cool Jobs: Meet the people with the coolest jobs in the world. Pamela Schaller, the head aquatic biologist for African penguins at the Steinhart Aquarium, racks up a colorful...

  • Cool Job: The Roboticist

    Cool Jobs: Meet the people with the coolest jobs in the world. Robotics engineer Dennis Hong demonstrates some of the remarkable robots that his team has built. They include a...

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