Professor invents 'ripeness' sticker

Posted by suttree, 896 days ago

Link: http://news.yahoo.com/s/ap/20060726/ap_on_sc/ri... External link

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Reading article "Professor invents 'ripeness' sticker" - Reply to this / 0 comment(s)
Clever stuff, I can see this being used in supermarkets in no time:

"A marker on Riley's RediRipe stickers detects a chemical called ethylene gas, which is released by fruit or vegetables as they ripen.

As that happens, the sticker turns from white to blue.

The more ethylene gas the fruit produces, the darker the blue, Riley said."

http://news.yahoo.com/s/ap/20060726/ap_on_sc/ri... External link

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