Download pptx - What you want to know…

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Page 1: What you want to know…

What you want to know…How to make a laser Can lasers cut things? 10 pts

Colorblindness Are all animals? Why does it happen?

10 pts

Cameras How do they work? Why do they distort?

10pts

Camera Filters 5 pts

CREATE YOUR OWN Will discuss

Are lightsabers possible? 5 pts

Glow in the dark 5 pts

Double Rainbows / Rainbows 5 pts

How does a light bulb work? 5 pts

Car mirrors Why are objects closer . than they appear?

5 pts

What is a black light? 10 pts

Page 2: What you want to know…

3-D TelevisionA Scientific Perspective

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History of 3D Imaging• 3D imaging in not new

• Been around for more than 150 years• 1st patented Sir Charles Wheatstone 1838

• Stereography

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3DTV Begins• “3DTV: It’s an Eye-Opener”

• The first domestic 3D Television broadcast • Wednesday night 3/24/2010• Rangers vs. Islanders NHL game

• Described as “game-changing experience”

Photos: multichannel.com

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How 3D Works• Binocular Vision

• ancient Greece – Euclid• Eyes are 2 inches apart• Each ‘sees’ slightly

different picture• Brain puts it together to

provide depth

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How 3D Works• We can simulate this by viewing two pictures

taken from slightly different angles while cross-eyed

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RED / BLUE (anaglyph) 3D• When light passes through a red

or blue filter, it filters out that particular wavelength of light

• Taking advantage ofthis and combiningit with binocular visionwe get basic 3D glasses

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Polarized 3D• Polarizing the two

different images projected on the screen allows us to do this in a different way

• Does not distort color

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New TV’s• Different Type of Technology…

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The Active “blocking” method

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Lenticular Displays

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Sources• http://science.howstuffworks.com• New York Times Online