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Scents and Sensibilities from World Science Fest.
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Not Right For WatchKnowLearn
Ages: 15 - 18
135 Views:
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How Do We Smell?
From worldsciencefestival.com, produced by World Science Festival 2011
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Take a deep breath. What do you smell? At that moment, millions of
molecules are rushing into your nose and caressing the nerve endings of your brain’s olfactory bulb. But how does your brain know what smell to assign each molecule? How many smells... can the brain handle? Smell researcher and neuroscientist Leslie Vosshall explains how molecules drifting through the air become the aromatic world around us. Okay, now exhale. (02:28)
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December 12, 2012 at 01:55 PM
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Not Right For WatchKnowLearn
Ages: 15 - 18
134 Views:
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Despite being one of the oldest senses, our sense of smell is easily one of the least understood. It’s also the only one with a direct
connection to our brain. With each breath we create a detailed picture
of our environment. It can warn us of da...nger, or lead us to food. Some
smells may even trigger behaviors without our knowing it. In Scents and Sensibilities, we’ll explore how our sense of smell works, how other
organisms utilize it, and how it has such a hold on our emotions and
memories. (02:05)
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December 12, 2012 at 02:25 PM
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Not Right For WatchKnowLearn
Ages: 16 - 18
113 Views:
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The Smell of Fear
From worldsciencefestival.com, produced by World Science Festival 2011
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People always claim that animals can smell fear. Is there anything to
it or in this case does “smell” just represent a wide range of perceptions? Artist and scent researcher Sissel Tolaas decided to
explore that very notion in a 2006 study about f...ear and olfaction.
Apropos to her spunky personality and unique methodologies, she not only found a novel way to collect the scent, she also found a slightly
unorthodox way to present it to a wide audience. (02:28)
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December 13, 2012 at 02:29 PM
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Not Right For WatchKnowLearn
Ages: 17 - 18
111 Views:
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Blind people gain an enhanced sense of smell to compensate for the lost sense, right? Right? Wrong. It turns out that it’s a total myth. Avery
Gilbert, a scent psychologist, takes a critical look at some of the widely circulated myths surrounding o...ur less understood sense of smell. (04:44)
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December 12, 2012 at 02:09 PM
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Not Right For WatchKnowLearn
Ages: 16 - 18
109 Views:
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Animals utilize their sense of smell to explore their surroundings. But
what about plants? When you smell a flower, is it smelling you back? Is
it trying to figure out if your nose would make a good pollinator?
Chemical ecologist Consuelo De Mo...raes shows us a parasitic vine that
uses smell to find its preferred host—the tomato. (02:48)
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December 12, 2012 at 02:20 PM
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Not Right For WatchKnowLearn
Ages: 15 - 18
104 Views:
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Smell is one of those senses where context can play a huge role. A
fine cheese and a dirty foot share the same molecular smells, yet one is a delicacy and other is repulsive. In an effort to toe the line on this
attract/repulse interplay, artist a...nd scent researcher Sissel Tolaas
collected bacteria from people, and used it to make cheese. In away, she has created a line of personalized dairy products. (03:51)
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December 13, 2012 at 02:36 PM
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