On October 30, 3M announced the results of its 2019 Young Scientist Challenge. 14-year-old Kara Fan's spray-on bandage beat out several other creative solutions to some of the world's biggest problems.
On October 30, 3M announced the results of its 2019 Young Scientist Challenge. 14-year-old Kara Fan's spray-on bandage beat out several other creative solutions to some of the world's biggest problems.
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