Thursday, July 23, 2009
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
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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.
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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
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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.
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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!
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!
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