Thursday, July 23, 2009
Your Text description. Fill it Or leave it blank.
Interesting phenomena, I didn’t know that rainbow light was polarized
"An early electrostatic influence machine, invented by Wilson in 1804. A ball electroscope observes the output voltage."
From: youtube description video
Science bob explain quickly how to produce sounds from a straw and how to make a chicken voice using a plastic glass.
http://www.youtube.com/watch?v=RwJr6Iugcrkendofvid
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This videos shows how polyurethane foam is made, you need just mix together the polyol and the isocyanete. A chemical reaction will happen and the total volume will grow up 30 times the original size.
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http://www.youtube.com/watch?v=gjUFTiHYN5kendofvid
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Find out how the materials absorb heat and the relation between heat and temperature for different materials.
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http://www.youtube.com/watch?v=rOib92FriZYendofvid
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Instead of these materials you can use a simple magnet from speakers, paper clips and adhesive type to build your own electrical motor.
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http://www.youtube.com/watch?v=zRQkYWpeMsYendofvid
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This video shows a different kind of electrical engine, it uses two coils as electrical magnets to attract, alternately, a piece of iron and generates movement.
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http://www.youtube.com/watch?v=3jr39mU8H8kendofvid
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Water and ice when looked at infra red camera can help us to understand how light and heat are related.
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http://www.youtube.com/watch?v=Lcf9wyW_3GEendofvid
[starttext]
Infra red light can be thought of as “heat”
The warmer something is, the more brightly it glows in the infrared.
Apiece of glass may be bright, but it is cool, so it will appear black in the infra red camera.
Even though a person may stand in shadows her body heat shines in the infrared.
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What causes an eclipse of the moon?
An eclipse is nothing more than a shadow, actually a huge shadow. Don’t believe on me? What this video and learn more about eclipses and our natural satellite, the moon.
[endtext]
Have you asked for yoursel why doesn't moon falls on earth? Watch this video and find out that actually it is falling, all the time.
http://www.youtube.com/watch?v=BvjeP3SfD1gendofvid
[starttext]
Have you ever thought why there aren’t green stars?
Looking to the sky at night we can identify some red stars, yellow stars and blue stars indeed, we’ll never see a green star.
Watch this video and find out the answer.
[endtext]
What a star really is? How matter ( gas and dust) collapse by the gravity force?
What is the end of a star?
You can find the answers for these questions and much more information about the stars evolutions on this video.
Play baseball with molecules and learn what makes the sky blue or sometimes red!
This video shows the effects of solar winds on earth, the hazards, boreal aurora and the earth's magnetic field protection against solar particles
Marshmallows contains air inside, the vacuum will reduce the inner pressure and make the air inside the marshmallows expand, thus the marshmallows grow up.
The effect of a polarizer on a rainbow light
Your Text description. Fill it Or leave it blank.
Interesting phenomena, I didn’t know that rainbow light was polarized
Make at home one Wilson's machine
"An early electrostatic influence machine, invented by Wilson in 1804. A ball electroscope observes the output voltage."
From: youtube description video
Music from a straw and a chicken in a cup
Science bob explain quickly how to produce sounds from a straw and how to make a chicken voice using a plastic glass.
The magic of polyurethane foam: polyol and isocyante
[starttext]
This videos shows how polyurethane foam is made, you need just mix together the polyol and the isocyanete. A chemical reaction will happen and the total volume will grow up 30 times the original size.
[endtext]
Is possible to boil water inside a balloon?
[starttext]
Find out how the materials absorb heat and the relation between heat and temperature for different materials.
[endtext]
Simple way to build an electrical motor
[starttext]
Instead of these materials you can use a simple magnet from speakers, paper clips and adhesive type to build your own electrical motor.
[endtext]
Different kind of electrical engine
[starttext]
This video shows a different kind of electrical engine, it uses two coils as electrical magnets to attract, alternately, a piece of iron and generates movement.
[endtext]
Infra red images of everyday life 2
[starttext]
Water and ice when looked at infra red camera can help us to understand how light and heat are related.
[endtext]
Infra red images of everyday life
[starttext]
Infra red light can be thought of as “heat”
The warmer something is, the more brightly it glows in the infrared.
Apiece of glass may be bright, but it is cool, so it will appear black in the infra red camera.
Even though a person may stand in shadows her body heat shines in the infrared.
[endtext]
The huge shadow called eclipse
An eclipse is nothing more than a shadow, actually a huge shadow. Don’t believe on me? What this video and learn more about eclipses and our natural satellite, the moon.
[endtext]
Why doesn't the moon falls down on earth? Actually it falls!
Have you ever thought why there aren’t green stars?
[starttext]
Have you ever thought why there aren’t green stars?
Looking to the sky at night we can identify some red stars, yellow stars and blue stars indeed, we’ll never see a green star.
Watch this video and find out the answer.
[endtext]
Stellar evolution video: how stars live and die
What a star really is? How matter ( gas and dust) collapse by the gravity force?
What is the end of a star?
You can find the answers for these questions and much more information about the stars evolutions on this video.
What makes the sky blue?
Play baseball with molecules and learn what makes the sky blue or sometimes red!
The effects of solar winds
This video shows the effects of solar winds on earth, the hazards, boreal aurora and the earth's magnetic field protection against solar particles
Marshmallows in a vacuum chamber
Marshmallows contains air inside, the vacuum will reduce the inner pressure and make the air inside the marshmallows expand, thus the marshmallows grow up.
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