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Laughing from expressive expressions about fun, fun, and other feelings sometimes. Laughter is a normal reaction to a healthy person on ridiculous positions as it can be a defense against spontaneous fear positions. Laughter is an expression of empathy and mutual understanding between humans, a means of human communication throughout history. Laughter is now used as a therapeutic method through hormone secretion and immune strengthening. After several episodes of laughter, the proportion of white blood cells in the blood increases. Laughter helps to strengthen the muscles of the face and abdomen and blood circulation in the heart, which leads to raise blood pressure and increase the proportion of oxygen in the blood and in clinics for children there is a clown. When a person laughs, 17 muscles move in the face and 80 muscles in the whole body and the breathing speed increases. Cheers are louder and are usually in a crowd of people reacting to a teaser. The result of sugar may arise after drinking alcohol.
1:59
Turning everyday activities into extraordinary learning opportunities.
9 Jan 2008
1204
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2:05
....Science Funny Fun Music
27 Jan 2008
855
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2:30
I hope you can !!
1 Nov 2008
938
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1:01
Can you balance 11 nails on the head of just one?
22 Nov 2006
358300
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1:22
put water in a can, boil the water, turn the can upside down in iced water. This crushes the can so you don't have to use your muscles
28 Dec 2006
1288
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2:49
Ever Wondered How Those Clouds Are Formed? Watch This Video And Make Your Own CLOUDS!
14 Feb 2007
5098
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1:23
how to find the north
23 Feb 2007
699
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0:34
How to balance 11 nails on the head of only one nail.
8 Jun 2007
1113
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0:49
Engineering students doing some research =P
10 Jul 2007
667
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0:26
Teacher testing baloon for hydrogen
10 Jul 2007
1709
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0:47
latest variation of a segway type gizmo where you don't have to use your hands
27 Jul 2007
926
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1:14
milk + fluo dyes + soap + UV : cool science and art
4 Sep 2007
2170
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