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        Listed under:  Technologies  >  Materials  >  Metals
        Video

        Tough zirconium - but what's its secret side?

        • TLF-IDM017939

        The element zirconium is often used for its tough, abrasive properties. It also has a secret side. View this clip (developed by students for the 2013 Sleek Geeks Eureka Science Schools Prize competition), which highlights the properties and uses of zirconium in a highly visual and fun way.

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        Video

        Elliot and the Surfing Scientist: Red cabbage pH experiment

        • TLF-IDM015755

        It might sound 'un-sciencey', and have a bad smell, but red cabbage is actually very useful for testing the pH of liquids. Added to well-known liquids like lemonade or vinegar, red cabbage juice changes to 'pretty colours'. In this clip, Surfing Scientist Ruben Meerman explains the colour changes and how red cabbage juice ...

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        Video

        Can We Help?: Artificial eyes: how are they made?

        • TLF-IDM015412

        To answer the question 'Are glass eyes really made of glass?' Peter Rowsthorn visits an ocularist who makes artificial eyes. Join him as he investigates how these eyes are made. Witness the skill of an ocularist, Jenny Geelen, as she creates an artificial eye to match Pete's existing eyes.

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        Video

        Elliot and the Surfing Scientist: Shrinking and expanding metals

        • TLF-IDM015808

        Explore with the Surfing Scientist team what happens when metals are heated and cooled. Find out what happens to a metal ring when it is immersed in extremely cold liquid nitrogen. What do hinges on the Sydney Harbour Bridge have to do with all this? Find out.

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