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This video explains how particles originating from deep inside the core of the sun creates northern lights, also called aurora borealis, on our planet. See an extended multimedia version of this video at forskning.no (only in Norwegian): http://www.forskning.no/artikler/2011/april/285324 ----------- This video is produced by forskning.no in collaboration with the Department of Physics at the University of Oslo. Production, animation and music:…
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This video is part of a series of twelve video clips, demonstrating the use of airscalers for the removal of dental calculus. The series shows the cleaning activity in a manikin model from the operator's point of view. The video's are used for training of dental students at the College of Dental Sciences of the Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands
Scaling teeth with airscaler
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