Ben Bradley

Jasper, GA, United States

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Ben hasn't completed a profile. Should we look for some other people?

Comments & conversations

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Ben Bradley
Posted 8 months ago
Spencer Wells: A family tree for humanity
He says at 13:22 that "ice actually sucks moisture out of the atmosphere." What is the mechanism for this? I'm trying to imagine how it works. Certainly sublimation (going from solid to gas) is slower than evaporation (liquid to gas) so any precipitation would be slower to go back into the atmosphere from ice, but is there more to it than that?
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Ben Bradley
Posted over 2 years ago
Where to find cutting edge teaching and learning methodologies?
Salman Khan of Khan Academy fame discusses in his TED talk about "inverting the classroom" - students watch the pre-recorded lecture on video on their own time where the student can repeat portions not understood. The classroom is where students work problems and are helped by the teacher as needed. The Khan Academy site lets each student go at his or her own pace, and keeps track of progress. Many or most core topics could be learned individually on computers, allowing the arts (music, drawing/painting, drama, dance) to be taught experientially in the social construct of school. More and more schooling and learning systems are online, and many are free on the Internet. There is very little a motivated student can't learn, and at little or no cost other than the time investment. Here's an amazing collection of free learning sites: http://noexcuselist.com/