1. Division


    from johan rijpma / Added

    77.7K Plays / / 36 Comments

    A piece of paper is divided by hand into an even number of pieces and then reassembled. A photograph of this finished composition is then printed and divided again. This makes the impossible possible,…

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    • Founders of Chemistry: Ancient Chemists


      from AACT / Added

      644 Plays / / 0 Comments

      This video traces the history of chemistry from the discovery of fire, through the various metal ages, and finally to the great philosophers.

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      • NanotubeTV Episode Two: An early history


        from Gina Miller / Added

        319 Plays / / 0 Comments

        Venture with us into the history of nanotechnology. From the ancients, to the atomic age and beyond.

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        • Video 20: John Dee was an Atomist


          from Jim Egan / Added

          165 Plays / / 0 Comments

          Following Greek philosophers like Leucippus and Democritus, John Dee felt all matter was made up of "atoms," the Greek word meaning "unable to be cut."

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          What are Tags?


          Tags are keywords that describe videos. For example, a video of your Hawaiian vacation might be tagged with "Hawaii," "beach," "surfing," and "sunburn."