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New INSANE Images of the Sun's Surface! - Video học tiếng Anh
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New INSANE Images of the Sun's Surface!
New INSANE Images of the Sun's Surface!
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0:00
- Hey, hot stuff.
0:01
You've got to check out these
0:03
new impossibly high res images of the sun.
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They're totally mesmerizing,
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but they also reveal new secrets
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about the sun's surface.
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They were taken by the world's most
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powerful solar telescope in Hawaii.
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Now, even though the sun is about
0:17
150 million kilometers away,
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this telescope can make out details as small
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as 18 kilometers wide on its surface.
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That's like building a telescope in Philadelphia
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that can see a quarter in New York City.
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The fine details in these new images are full of
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what look like tiny whirlpools.
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These swirling patterns are an example
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of a phenomenon called Kelvin-Helmholtz Instability.
0:40
It happens when one layer
0:42
of a fluid moves faster than the layer next to it,
0:44
and it forms a small wave
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or a rip curl over the crest.
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Now in this case, it's two layers
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of the hot electrically charged gas
0:52
that makes up the sun's surface sliding against each other.
0:55
And we see the same thing in ocean currents
0:57
and in clouds sometimes.
0:59
Even in the atmosphere
1:00
of big planets like Jupiter and Saturn.
1:03
But confirming these on the sun's surface
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has scientists al hot and bothered,
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because this could help answer the burning question of
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how stars like the sun have atmospheres hotter
1:14
than a million degrees,
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even though their surface is only a few thousand degrees.
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It could even help us figure out magnetic flares
1:21
and eruptions.
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The constant turning of this gas could be
1:25
what starts the twisting
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and braiding strands of magnetic energy around the sun.
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You know, they say you should never look at the sun,
1:33
but I'm glad someone is.
1:35
Follow me for more cool science videos.
