Pourquoi les chats ronronnent-ils ? - Scilabus 26

Savez-vous ce qu’est le ronronnement du chat ? Pourquoi ils ronronnent et comment ? Découvrez que cette fonction est liée à la survie et s’applique aux astronautes et s’appliquera peut être un jour aux femmes…

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***Sources :***

• http://www.spirit-science.fr/doc_musique/Sensation-sonore.html
• http://omf.paris-sorbonne.fr/IMG/pdf/chart_pitch-micro.pdf
• http://en.wikipedia.org/wiki/Voice_frequency
• An acoustic analysis of purring in the cheetah (Acinonyx jubatus) and in the domestic cat (Felis catus)
• Effects of different sports on bone density and muscle mass in highly trained athletes
• How cats purr http://onlinelibrary.wiley.com/doi/10.1111/j.1469-7998.1991.tb04749.x/abstract
• http://www.asc-csa.gc.ca/fra/sciences/eosteo.asp
• Hyoid apparatus and pharynx in the lion (Panthera leo), jaguar (Panthera onca), tiger (Panthera tigris), cheetah (Acinonyx jubatus) and domestic at (Felis silvestris f. catus)
• NEURAL AND MECHANICAL MECHANISMS OF FEILINE PURRING
• https://www.youtube.com/watch?v=Yhj5gjcY77I
• https://www.youtube.com/watch?v=7_zKkBKu1fs
• http://en.wikipedia.org/wiki/Solf%C3%A8ge
• http://upload.wikimedia.org/wikipedia/commons/a/ad/Piano_key_frequencies.png
• http://science.nasa.gov/science-news/science-at-nasa/2001/ast02nov_1/
• Whole-Body Vibration Therapy for Osteoporosis: State of the Science
• A comparative acoustic analysis of purring in four cats:
http://lup.lub.lu.se/luur/download?func=downloadFile&recordOId=2292761&fileOId=2292764

*** Images : ***

"615 Age and Bone Mass" by Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/, Jun 19, 2013. - OpenStax College. Licensed under CC BY 3.0 via Wikimedia Commons - http://tinyurl.com/n5nrpfx

"Blausen 0686 Osteoporosis 01" by BruceBlaus. When using this image in external sources it can be cited as:Blausen.com staff.
"Blausen gallery 2014". Wikiversity Journal of Medicine. DOI:10.15347/wjm/2014.010. ISSN 20018762. - Own work. Licensed under CC BY 3.0 via Wikimedia Commons - http://tinyurl.com/k4x6xl3

"Bone normal and degraded micro structure" by Gtirouflet - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons - http://tinyurl.com/n62b2td

*** Musique : ***
Josh Woodward, "already there", Album "ashes"

*** Sous-titres : ***
Marianne Lalande

Next episode

S01E25 - Naviguer plus vite que le vent ? - Scilabus 27