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Can We Help?: 3D is back!

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Peter Rowsthorn wears 3D glasses
Can We Help?: 3D is back!

SUBJECTS:  Science, Technologies

YEARS:  9–10


Andrew Woods from Curtin University answers the question 'How are 3D movies made?'

Discover how how 3D glasses work. You might be surprised to find out how long ago people started making 3D movies.


Things to think about

  1. 1.Have you ever seen a 3D movie? How was the experience different from watching a regular movie? Why do you think you need to wear special glasses to view 3D movies?
  2. 2.Andrew Woods explains on a 'normal' television screen both eyes see the same image. How does that compare with viewing a 3D movie? 3D glasses with one red lens and one blue lens is one way of separating the images that go to each eye. What is a limitation of 3D glasses like this? How do polarised glasses provide a better way to view 3D movies?
  3. 3.If you have access to an LCD computer monitor, display a white screen on it. Slowly rotate polarising sunglasses or 3D glasses (frame facing you) in front of the screen. At some points the lenses appear black. At what point do the glasses block light or and at what position do they transmit light?
  4. 4.Have you ever worn polarising sunglasses? Find out how they work to reduce glare. Create a brochure explaining why polarising lenses are better at improving visibility than 'normal' sunglasses. Include a labelled diagram to explain how polarisation works.



Date of broadcast: 9 May 2008


Copyright

Metadata © Australian Broadcasting Corporation and Education Services Australia Ltd 2012 (except where otherwise indicated). Digital content © Australian Broadcasting Corporation (except where otherwise indicated). Video © Australian Broadcasting Corporation (except where otherwise indicated). All images copyright their respective owners. Text © Australian Broadcasting Corporation and Education Services Australia is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0).

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