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Activity Movies [Flash] New Flash Activity: Investigating Pulleys Join Molly and Spidey as they learn about the power of pulleys and how these simple but important machines are put to use. Select the link below to get started. Remember if you have a projector and white board and would like to present the activity to your class, choose the larger version where available for maximum impact! The file size is the same so don't worry about it taking longer to download.
This is a beautiful lesson designed and presented by Rob Miller on Scrib. What I really like about this series of activities is that it allows the students or in Rob's case his teachers to articulate their own learning. It is never about a single app.
MIT Understanding Lasers and Fiberoptics full course by MIT Lasers are essential to an incredibly large number of applications. Today, they are used in bar code readers, compact discs, medicine, communications, sensors, materials processing, computer printers, data processing, 3D-imaging, spectroscopy, navigation, non-destructive testing, chemical processing, color copiers, laser "shows", and in the military. There is hardly a field untouched by the laser. But what exactly is so unique about lasers that makes them so effective?