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L’Oreal and John Rogers built a thumbnail-sized UV sensor
L'Oreal is not a name that you'd normally associate with CES, but the cosmetics giant is now a regular exhibitor at the show. This year, the company is demonstrating a thumbnail-worn smart device that's less than two millimeters thick. UV Sense is a battery-free electronic sensor that's designed to monitor your sun exposure and, when coupled with an NFC-enabled smartphone, help limit your skin cancer risk.
