Professor invents 'ripeness' sticker to tell if produce is fresh!

news.yahoo.com — TUCSON, Ariz. - A University of Arizona professor has invented a sticker that can tell consumers if a fruit or vegetable is ripe. The stickers will be available to growers next year and should make their way to supermarkets within two to three years, said Mark Riley, a UA assistant professor of agricultural and biosystems engineering. Jul 26, 2006 View in Crawl 4