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Unfortunately we aren't all situated with the funnest of lectures when concerned with the hard sciences. Theory is explained to us and we do our best to understand the words on a paper, or coming from the professors mouth.
In order to break out of this redundant pattern for those suffering what was mentioned above I have your mix-up.
A university has taken the task to explain through badass experimentation to explain the sciences of chemistry and physics.
Physics - Polarisation
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Chemistry - Chlorine
Featuring a scientist with an awesome hairdo
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Both videos are just a taste of what the channels have to offer.
Physics (sixtysymbols)
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http://www.youtube.com/user/sixtysymbols
Chemistry (Periodicvideos)
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http://www.youtube.com/user/periodicvideos
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All in all, I would suggest you make friends with a professor or teacher that have these resources available to see this stuff first hand.
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I might regret this, but here is a video featuring heavy cooling of ethanol. If you try it, please really consider any safety hazards.
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