I f you've ever opened a band-aid in a darkened room, you may have noticed something a little unexpected. If you have the right type of band-aid, it may emit visible blue light.

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We were always amused that one of the biggest scientific discoveries of the recent past — graphene — was started with pencil lead and Scotch tape ... and a large roll is under $11.

3M believes its Scotch Flex & Seal Shipping Roll could replace shipping tape, boxes and packing peanuts altogether. The roll comes in four sizes of waterproof, cushioned material and—with 3M’s ...