Science Lab: Why is the sky blue? Why is the sunset red?
Why does the sky appear blue, even though the air is transparent and the sun's light is white? And why does the sky turn red in the evening, even though it's blue during the day?
Created: January 2009
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Why are summer days longer?
(03'33'') - In Japan, there are up to five more hours of daylight in the summer than in the winter. Why do the hours of daylight vary with the season?
Created: April 2012
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Why does the sun shine?
(03'36'') - The sun brings us many blessings. Why does the sun shine? Let's take a look at how the sun shines.
Created: December 2011
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Why is a soap bubble so beautiful?
(02'13'') - Why does a soap bubble glisten with all the colors of the rainbow? The beauty of a soap bubble is charming and mysterious, different from the sparkling beauty of water or glass.
Created: January 2009
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Why is the sky blue? Why is the sunset red?
(02'14'') - Why does the sky appear blue, even though the air is transparent and the sun's light is white? And why does the sky turn red in the evening, even though it's blue during the day?
Created: January 2009
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How is a rainbow formed?
(03'30'') - Why does a rainbow appear after it rains and how is a rainbow formed? And why can't you catch up to a rainbow, no matter how far you walk? Here we will explore the wonder of rainbows.
Created: April 2009
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Why does the oar appear bent at the water's surface?
(03'12'') - When objects are placed in water, it looks like they bend at the surface. Why do they appear to be bending, even though they aren't?
Created: July 2009
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Why does lightning occur?
(03'22'') - When cumulonimbus clouds gather in the sky, lightning sometimes appears with lots of noise. So how does lightning occur and why does it flash?
Created: September 2009
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Why does the moon appear blurry?
(03'20'') - When thin clouds appear in front of the moon, it can appear white and blurry. Why does this happen? Let's take a look at the secret behind this mystery!
Created: December 2009
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