How Seashells Are Made

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If you know that seashells are made of basically the same stuff as chalk, you might have wondered why chalk is crumbly but seashells are super tough. This week on Reactions, we explain: The secret’s in the biochemistry.


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Credits:
Producer: Sean Parsons
Writer: Alexa Billow
Scientific Consultants: Ingrid Weiss, PhD; Michelle Boucher, PhD
Executive Producer: George Zaidan
Fact Checkers: Alison Le
Music:
“Samba Insobel” Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...
“Hard Boiled” Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/b...

Sources:
https://onlinelibrary.wiley.com/doi/f...
https://www.ncbi.nlm.nih.gov/pubmed/2...
https://www.scientificamerican.com/ar...
http://news.mit.edu/2015/why-seashell...
   • How to Make a Seashell - Just Add Water!  
http://www.elic.ucl.ac.be/textbook/ch...
https://www.sciencedirect.com/science...
https://pdfs.semanticscholar.org/pres...
http://epod.usra.edu/blog/2009/10/sid...
http://www.todayifoundout.com/index.p...
https://www.thoughtco.com/calcite-vs-...
https://www.mindat.org/min-307.html
https://www.mindat.org/min-859.html
http://www.webexhibits.org/causesofco...
http://newscenter.lbl.gov/2008/11/25/...
   • How Do Oysters Make Pearls?  


Ever wonder why dogs sniff each others' butts? Or how Adderall works? Or whether it's OK to pee in the pool? We've got you covered: Reactions a web series about the chemistry that surrounds you every day.

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