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Elastic Fibres Appear to Change Colour as They Are Stretched

Posted January 31, 2013 10:01 AM

From The Engineer - News:

Colour-changing clothes and more flexible optical fibres could be on the cards following the creation of a material that appears to change colour as it stretches.

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Re: Elastic Fibres Appear to Change Colour as They Are Stretched

01/31/2013 10:05 PM

What's the difference between appearing to change color and actually changing color?

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Re: Elastic Fibres Appear to Change Colour as They Are Stretched

01/31/2013 11:54 PM

Color? Do black nylons turn white? Maybe relative to the background because less coverage? Are black and white actually colors? Too many questions? What is happening to us?

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Re: Elastic Fibres Appear to Change Colour as They Are Stretched

02/01/2013 8:23 AM

The difference can be a trick of the visual system, such as described in the link, but that's probably not what they meant.

http://en.wikipedia.org/wiki/Benham_disk

Another example would be how a mix of red and green light looks 'yellow' if surrounded by a dark background, but looks 'brown' if surrounded by a light background. -- Which is probably closer to what they're talking about.

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