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Why do Onions make you Cry?
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Korri
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Miffed Why do Onions make you Cry?

????

Old Post Nov 17th, 2003 06:59 PM
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Dr. Leg Kick
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beacause i told the onions to do so.


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Old Post Nov 17th, 2003 07:00 PM
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Matrix_man
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what he said ^


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Old Post Nov 17th, 2003 07:00 PM
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Matrix_man
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lol citric acid....


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Old Post Nov 17th, 2003 07:01 PM
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Korri
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well the onions made me cry

Old Post Nov 17th, 2003 07:01 PM
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Dr. Leg Kick
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The lachrymatory factor activates the nerve endings of pain fibres in the top layer of the cornea," explains Professor Jonathan Dostrovsky, director of U of T's collaborative program in neuroscience and a professor in the Department of Physiology. "When these pain fibres become active, they send signals to the brain and give rise to the sensation of pain in the eye," he says. "At the same time, these signals also activate the part of the autonomic system [the system responsible for the optimal functioning of the body] that controls the lacrimal gland [the gland that produces tears] leading to increased production and release of tears."


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Old Post Nov 17th, 2003 07:01 PM
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Dr. Leg Kick
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i did a small project on this. ^info from website


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Old Post Nov 17th, 2003 07:02 PM
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Raz
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A quick google search found this:
quote:
When you slice through an onion, you break open a number of onion cells. Some of these cells have enzymes inside of them, and when they are sliced open, the enzymes escape. The enzymes then decompose some of the other substances that have escaped from sliced cells. Some of these substances, amino acid sulfoxides, form sulfenic acids, which then quickly rearrange themselves into a volatile gas.

The gas reaches your eyes and reacts with the water that keeps them moist. This changes the chemical's form again, producing, among other things, a mild sulfuric acid, which irritates the eyes. The nerve endings in your eyes are very sensitive and so they pick up on this irritation (this is why our eyes sting when we slice onions). The brain reacts by telling your tear ducts to produce more water, to dilute the irritating acid so the eyes are protected. Your other reaction is probably to rub your eyes, but this will actually make the irritation a lot worse, of course, if you have onion juices all over your hands.
http://www.howstuffworks.com/question539.htm


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Old Post Nov 17th, 2003 07:02 PM
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Korri
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oooh rite!!

Old Post Nov 17th, 2003 07:02 PM
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Dr. Leg Kick
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good job raz.


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Old Post Nov 17th, 2003 07:03 PM
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Matrix_man
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wow....thats a lot better than stupid citric acid.....im dumb.... huh


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Old Post Nov 17th, 2003 07:04 PM
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Dr. Leg Kick
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well u tried. smile


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Old Post Nov 17th, 2003 07:05 PM
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Matrix_man
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laughing out loud


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Old Post Nov 17th, 2003 07:05 PM
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Dr. Leg Kick
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2


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Old Post Nov 17th, 2003 07:06 PM
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Korri
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3

Old Post Nov 17th, 2003 07:11 PM
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Dr. Leg Kick
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NO! impossible. it cant be.
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Old Post Nov 17th, 2003 07:12 PM
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Matrix_man
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......7?


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Old Post Nov 17th, 2003 07:13 PM
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Dr. Leg Kick
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thats impossible!! lol ummm 3409682086023486043860830830.2
ill be back in a few minutes.


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Old Post Nov 17th, 2003 07:14 PM
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Korri
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ONIONS SUCK!!

Old Post Nov 17th, 2003 07:15 PM
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Matrix_man
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yes


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Old Post Nov 17th, 2003 07:16 PM
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