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Annual Report 2007 - The Australian Nanotechnology Network

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Nanomaterials workshop<br />

How do materials really work? How does nanoscale<br />

structure change the properties of a material? From<br />

polymer slime to non-Newtonian fluids, students learn<br />

about what makes up materials on the nanoscale, and how<br />

we use this to make something useful. Sand that always<br />

stays dry, beads that change colour in the sun, and how<br />

Polaroid sunglasses work. Plus, a discussion of some of<br />

the latest technologies – including flexible screens and<br />

organic LCDs!<br />

A mixture of cornflour and water is an<br />

“oobleck” – it appears runny if you work<br />

slowly with it, but…<br />

Students from Yirara College investigate UV<br />

sensitive beads<br />

Running on the oobleck<br />

compresses the cornflour<br />

particles, making it instantly<br />

solid!<br />

Microscopic bumps on the surface of a Mentos lolly cause a massive release of carbon<br />

dioxide from Cola – producing a dramatic fountain for a finale!<br />

74

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