Be Smart.

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  • Spit: Everything You Never Sought To Know
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    References/further reading:
    “Gulp” by Mary Roach: A great read about the odd science of the digestive system
    http://amzn.to/1U4i2N7 (Public library: http://www.worldcat.org/oclc/811599508)
    Carpenter, Guy H. "The secretion, components, and properties of saliva."Annual review of food science and technology 4 (2013): 267-276.
    Perry, George H., et al. "Diet and the evolution of human amylase gene copy number variation." Nature genetics 39.10 (2007): 1256-1260.
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    It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D.
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    8 min
  • The Surprising Reason We Eat Spicy Food

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    Uploaded 10-07-18

    People who live near the equator use more spices per recipe than people who live far from the equator. But that isn't for the reason you think. Spices and other plant ingredients have special powers that make them a truly magical superfood!

    REFERENCES:

    Billing, J., and Sherman, P. W. (1998). Antimicrobial functions of spices: why some like it hot. The Quarterly review of biology, 73(1), 3-49.

    Juneja, V. K., Dwivedi, H. P., and Yan, X. (2012). Novel natural food antimicrobials. Annual review of food science and technology, 3, 381-403.

    Sherman, P. W., and Billing, J. (1999). Darwinian gastronomy: why we use spices: spices taste good because they are good for us. BioScience, 49(6), 453-463.

    Li, Z., Henning, S. M., Zhang, Y., Zerlin, A., Li, L., Gao, K., ... and Heber, D. (2010). Antioxidant-rich spice added to hamburger meat during cooking results in reduced meat, plasma, and urine malondialdehyde concentrations–. The American journal of clinical nutrition, 91(5), 1180-1184.

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    It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
    Director: Joe Nicolosi
    Writer: Sarah Keartes
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    Editor/animator: Derek Borsheim
    Producers: Stephanie Noone and Amanda Fox

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    10 min
  • The Strange and Unexpected Reason Ice is Slippery

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    Uploaded 17-12-19

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    I’m guessing you’re pretty familiar with ice. We use it in our drinks, slip on it, skate on it, worry about climate change melting it. But have you ever stopped to really think about this stuff? The freezing and melting of water affects so much of our world. It’s ice crystals in thunderclouds that create lightning. Ice is powerful enough crack boulders, float stones, and alter entire landscapes. Ice is such a common substance, you'd think we'd know everything about it by now. But it has some secrets and weird properties we’ve only just begun to figure out. One question about ice that's, still not totally answered, is one of the most obvious: why is ice slippery? It's a more complicated answer than it seems!


    References: https://sites.google.com/view/why-is-ice-slippery-references/home

    Special thanks to our Brain Trust Patrons:
    AlecZero
    Bob Rosset
    Brent M.
    Diego Lombeida
    Ron Kakar


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    12 min

About Be Smart.

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We give you deep answers to simple questions about science and the rest of the universe. And also dad jokes.