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Offline Andrew K Fletcher

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« Last Edit: 15/08/2007 15:17:50 by Andrew K Fletcher »


 

Offline Andrew K Fletcher

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Some interesting experiments
« Reply #1 on: 16/08/2007 07:16:59 »
The above experiments are short videos of simple but fascinating experiments that anyone can try for themselves. First is a trick with a coathanger and a coin that will amaze people.

Second is a lemon battery, which ok it's not a lemon battery more like a lemon generator as no power is put into the lemon but power comes out, and if you connect several lemons together with reversed polarity connections the power output increases.

these would prove great for a classroom exploring physics.

The others, well Ill let you decide
« Last Edit: 16/08/2007 07:19:44 by Andrew K Fletcher »
 

paul.fr

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Some interesting experiments
« Reply #2 on: 16/08/2007 07:27:03 »
The last one is my favourite, i have never seen or done that one before........goes off to look for a transparent container...
 

Offline daveshorts

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Some interesting experiments
« Reply #3 on: 16/08/2007 14:51:14 »
It is convenient that the anti=gravity one is on a white background isn't it - so hard to see the strings....
 

Offline Bored chemist

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Some interesting experiments
« Reply #4 on: 16/08/2007 18:03:04 »
The "lemon battery" is a battery (strictly a cell- the 2 lemons in series make a battery).
It converts cheemical enery (the energy expended in refining the zinc coating of the nail) into electrical energy.
 

Offline Andrew K Fletcher

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« Last Edit: 17/08/2007 12:59:08 by Andrew K Fletcher »
 

paul.fr

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Some interesting experiments
« Reply #6 on: 17/08/2007 14:23:28 »
Andrew, just a few points.

Of the first few you posted i only watched the coke one, the problem (for me) was the long intro of the first, it sort of put me off waiting.
then again, i think microwaves should work faster.

In the "beautiful science experiment", the narrator does mention that It is a trick! Which it is not. Also there is not explanation given as to why the reaction happens.
 

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Some interesting experiments
« Reply #6 on: 17/08/2007 14:23:28 »

 

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