October 2009 Archives

Recently, we've presented a few of our demos from Thinkwell's Physics with Prof. Ephraim Fischbach. Now we're going to change gears and look at some of our demos from Thinkwell's Chemistry. As with Physics, these Chemistry videos are full of interesting experiments.

In this video, Prof. Gordon Yee from Virginia Tech shows that a material's density will differ depending on its temperature. This simple concept's impact can be seen all around us. Ocean currents are partially maintained through differences in temperature, and we can see this principle at work in hot air balloons and lava lamps.

Enjoy yourself as we dive into Chemistry in Action with Gordon Yee, and keep a look out for more Chemistry demos in future posts.


Physics in Action: Conservation of Energy

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Welcome back for another one of Prof. Ephraim Fischbach's demonstrations from Thinkwell's Physics.

Today we'll look into conservation of mechanical energy. One of the fundamental principles of physics, it states that with only conservative forces (for example, gravity) acting on a system, the sum of kinetic energy and potential energy of that system remains constant.

In this video, Prof. Fischbach risks life and limb to demonstrate this principle with the Giant Nose-basher. (No noses were harmed in the filming of this video.)


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This page is an archive of entries from October 2009 listed from newest to oldest.

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