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Experiment: Bending Water with a Plastic Comb Rate Topic: -----

#1 mooeypoo 


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Oh look, Pwnies!
Yes, yes, I seem to have an affinity towards bending stuff, specifically wet stuff. Last time I bent a laser beam using water, and this time I’m going to magically bend water using a plastic comb.

Science magic! Okay, well, it’s not quite magic, it’s science magic, which means it has (as always) a perfectly good explanation to it. But - can you guess it?

(Read more and watch the video...)

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#2 ecoli 


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murderator
who's the hottie with the comb? :D
[/FONT][/COLOR]It's about time I changed my signature
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#3 User is online  swansont 


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Shaken, not Stirred

ecoli said:

who's the hottie with the comb? :D


Are you implying some sort of thermal effect here? :confused:






:D
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#4 smiles 


Quark
a wonder, how water brings charges :eek:
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#5 Baby Astronaut 


Molecule
Ok, the positive charged part of the water's attracted to the comb and moves toward it. Yet if the water's (negatively charged) electrons repel away from the comb, why doesn't the right side of the water bend away from the comb?

Instead, the right side of the water also bends towards the comb following along with its left side.

Posted Image


But I'd have assumed the water to bend in opposing directions, as shown below.

(note: image originally by mooypoo; it's been altered by me only for illustrative purposes here)
Attached Image: Image1.jpg
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#6 insane_alien 


Genius
the positive and negative bits of water are attached to each other pretty firmly. even if you discount the force provided by surface tension.

they charges in water aren't really distinct, they are both in the same molecule(the hydrogens are slightly positively charged and the oxygen is slightly negatively charged)

the reason it all goes over to the one side is that the force of attraction between the negative comb and the hydrogen is greater than the repulsion of the comb nad the oxygen because the oxygen is slightly furter away.
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