02:09Remaining Red-winged Blackbirds Bulk Up For Migration At Cornell Feeders | November 9, 2026
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Visit a medical laboratory to see how artificial eyeballs are made. Every single eye is made by hand and precisely tailored to its wearer. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About I Didn't Know That: Two industrial scientists, Richard Ambrose and Jonny Phillips, explain the science behind everyday life... from microwave ovens to beating a lie detector. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Making an Artificial Eye | I Didn't Know That https://youtu.be/q4vzEABlHMo National Geographic https://www.youtube.com/natgeo
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