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  • You thought you were SO smart! You thought you KNEW where lightning came from, but you

  • don't. Because it comes from the SUN.

  • Howdy light bulbs, Trace here comin' atcha from DNews with your weekly space update!

  • Lightning is a fairly common way for nature to showcase its raw power. Molecules in the

  • clouds bump and grind on each other, creating a buildup of static electricity. As the cloud

  • becomes positively charged, electrons snake up from the negatively charged ground called

  • step leaders. When the electrons meet SHHHHKKKKK!! Lightning! Science is awesome.

  • Anyway, that's what we USED to think, turns out there's a bigger, badder baller on the

  • block. The friggin' SUN.

  • A new study in Environmental Research Letters found the solar wind may be affecting the

  • amount of lightning we're seeing on the ground. The sun is constantly producing a stream of

  • electrons and protons travelling a million miles an hour flowing in all directions away

  • from it. This is commonly called the solar wind -- because Earth is bathed in the high-speed

  • little buggers constantly, and during periods of high solar activity, like now, the solar

  • wind "blows" even stronger.

  • Though we think of the sun as a solid ball, it's a giant nuclear furnace made of gas that

  • takes 27 days to fully rotate. The particles it emits are therefore fluctuating in a predictable

  • pattern as well. The scientists describe the solar wind as waves, because it can vary in

  • density, temperature and charge, based on where the sun is in its cycle.

  • When these high-energy particles hit Earth's magnetic field, we get aurora, and they usually

  • just bounce off and keep going. However, when a relatively slow wave is overtaken by a relatively

  • fast wave it overwhelms Earth's magnetic shield and some of the particles break into the upper

  • atmosphere, charging up the clouds and causing an increase in either frequency or intensity

  • of lightning. They weren't exactly clear on which of those it was...

  • It's not just our sun causing this static buildup, when OTHER stars explode millions

  • of light-years away, they ALSO send out these high-energy particles and some of them do

  • eventually hit us too. Mathematically, this is mind boggling, right? What are the chances

  • of a star exploding millions of years ago at JUST the right time to shoot out a particle

  • which after millions of years will hit US and cause a lightning strike that will FINALLY

  • give me super powers? WHAT ARE THE CHANCES?!

  • Knowing this, the scientists say, might help improve long-term weather forecasting. Somehow.

  • Are you blown away by this solar wind thing? Tell us in the comments below and get funky

  • with it. Make sure you subscribe and also, space friends, NEXT Wednesday we doing a Google

  • Hangout with NASA/JPL and it's going to rock. Literally. Because we're talking about Meteors.

  • Check the description for the link to RSVP and get your questions ready! I'm super excited

  • about this, it's going to be every month!

  • Subscribe for more videos every day of the week and come say hey to us on twitter at-DNews,

  • or me at-TraceDominguez, and thanks for watching, y'all are the bestest.

You thought you were SO smart! You thought you KNEW where lightning came from, but you

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B1 中級 美國腔

太陽導致地球上的閃電! (The Sun Causes Lightning On Earth!)

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    Jack 發佈於 2021 年 01 月 14 日
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