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Swinging Atwood's Machine - YouTube
https://www.youtube.com/watch?v=M_ls9daiSXs
Slow motion footage of a Swinging Atwood's Machine with a mass ratio of about 2.75. Build for Mechanics class at Olin College of Engineering
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Meliscaeva auricollis hoverfly feeding on pollen - YouTube
https://www.youtube.com/watch?v=2z1ZDIvAHnQ
A male Meliscaeva auricollis hoverfly feeds on Hogweed pollen at Afton Marsh, Freshwater on 30th May 2012. Further information at http://bedfordshirewild.blo...