Science of Football - Better Helmets
Which is safer - a helmet made out of many thin layers or a solid piece?  See acast.com/privacy for privacy and opt-out information.
Pulse of the Planet Podcast with Jim Metzner | Science | Nature | Environment | Technology
February 5, 20162m 30s
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Show Notes
Which is safer - a helmet made out of many thin layers or a solid piece?
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