4 awesome discoveries you probably didn't hear about this week -- Episode 19

The whole tooth and nothing but the tooth, slipping into something solar, wet and dry disease and mucus modifications to save lives. It's "4 Awesome Discoveries You Probably Didn't Hear About This Week."  

1. The Whole Tooth: New Method to Find Biological Sex From a Single Tooth
2. Floodwater in rivers affects vulnerability to waterborne diseases
3. Stretchy solar cells a step closer
4. Can scientists change mucus to make it easier to clear, limiting harm to lungs?

Provided by National Science Foundation

Runtime: 2:09

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