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Leah Segal

Educators
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Everything posted by Leah Segal

  1. Feynman describes how his father taught him from a young age that knowing the name of things does not tell you anything about the thing itself. A segment from the 1981 BBC Horizon interview "The pleasure of finding things out"
  2. [color=rgb(103,103,103)][font=Arial][size=3][background=rgb(251,251,251)]In this video, produced by the National STEM Centre and the Institute of Physics, Michael de Podesta has a unique twist to demonstrate static electricity and charge. Small pieces of paper are attracted to a statically-charged balloon. Amazingly, so is a sausage. This short video illustrates an engaging demonstration that can readily be used with students.[/background][/size][/font][/color]
  3. New Equipment released at the 2012 CrossFit Games.
  4. Cars sliding in the portland ice storm...
  5. High school students demonstrating the C of M with a fire extinguisher and a canoe. The mass of the canoe with students is guessed at 200+ kg. Apologies for the size of the file and the orientation of the phone camera.
  6. [color=rgb(51,51,51)][font=arial][size=3]When sunlight shines through a small hole, it casts a circular image on the wall regardless of the shape of the hole. The size of the hole also doesn't affect the size of the image.[/size][/font][/color] [color=rgb(51,51,51)][font=arial][size=3]This counterintuitive demonstration shows that the hole is acting like a pinhole camera, producing an image of the sun on the wall. Therefore the size and shape of the hole have no effect on the size and shape of the image.[/size][/font][/color] - Website
  7. [color=rgb(0,0,0)][font=arial][size=3]Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This technology may someday be used to build cameras that can look “around” corners or see inside the body without X-rays.[/size][/font][/color] [color=rgb(0,0,0)][font=arial][size=3]Photography is about creating images by recording light. At the MIT media lab, professor Ramesh Raskar and his team members have invented a camera that can photograph light itself as it moves at, well, the speed of light[/size][/font][/color] -TED Website

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