Name: パーカーソーラープローブ - 毎日スマートに 198 (The Parker Solar Probe - Smarter Every Day 198)
Uploaded: 2021-01-14T10:07:54.000Z
Duration: 13 min 50 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

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And you tried to explain it to someone else, and they just didn't believe you.

This is the story about a man named Eugene Parker who in 1958 wrote a paper about solar winds.

NASA has named about 20 spacecraft after distinguished researchers.

However, NASA has never named a spacecraft after researcher during their lifetime.

A few days before you're not 90th birthday, Jean to announce that we're renaming the solar probe plus spacecraft to be known from now on as the Parker Solar probe.

I'm certainly greatly honored to be associate ID with such a heroic scientific space mission by heroic, of course.

Every human that has ever lived has looked at the sun and thought about it.

And this is mankind's best effort to understand it.

It is time for us to go to Kennedy and ask hard questions.

So, uh, there is a NASA press side over here.

We're gonna go in there and see if we can find the scientists.

So This is the press building and all these different stations.

Air said it with people that are involved in the launch and science way.

So I'm the physical sciences division, Dean at the University of Chicago.

So now I'm sort of responsible for all the physical sciences in Chicago.

But my history in the nineties was a researcher much junior than Gene.

And he is now happy to be watching a launch of the the probe.

It's his life's work, is incredibly humbled and just loves physics.

He loves astrophysics and loves to understand the universe by sitting down writing equations, trying to understand how the physics and the cosmos works.

That stuff we know on Earth, how does it get translated out there and hey would do that from it on early age.

And then when he came to the ears of Chicago, he was very puzzled by what was going on with you know, for example, comet tails and other issues with the solar system as a whole and sat down and wrote the equations that we call hydrodynamic equations for what would look like this plasma from the sun all the way to the edge of the solar system.

And what he found was that there would be the solar wind.

And he had a very hard time publishing that paper because people didn't believe it.

There is no wind, supersonic speeds coming from the sun all the way to the earth.

There's nothing between the sun and the earth.

And there shouldn't be any problem flying out there.

It turns out he was right, and those who were very skeptical about him, what made him see it like what made him think it was there.

So people had the equations that explained the universe, right, so people would make models and they assume there was nothing.

So if you assume there's nothing between the sun, the earth, then you know your solution will tell you zero.

But if you look a little deeper and say, Well, wait a minute.

And he found, Yes, there is this whole solar wind and nobody believed him.

He got a bit lucky compared to many theorists because his theory was proved four years later.

And that's what Marina to did very precisely on its way to Venus and made it very clear that that's the solar wind.

Parker solar probe really was, You know, decades of work by many, many scientists Getting close to the sun is no piece of cake.

The most impressive technological jump was the solar, the shield.

Before we go talk to the people that actually built the Parker solar probe, my daughter and I thought I'd be really fun to make a model version for herself.

So we went to the craft room and made some awesomeness be jealous.

After talking to Angela, I kind of think of the spacecraft now like a shield on a Roman soldier, right?

And no matter where the spacecraft is, it is always pointing that shield towards the sun to protect it from the enemy, which is, you know, the thermal loading that would kill this thing in 10 seconds.

As a matter of fact, anyway, there's two things that to be developed in order for this mission to happen.

The 1st 1 of these high temperature solar panels.

Let's go talk to the Johns Hopkins Applied Physics Lab.

This is Philippe from Johns Hopkins, right?

Over mechanical, that beauty lead mechanical for the Parker solar probe.

Says this is a day that for me has been for years in the making.

10 years in the making, real and for for the space community.

For NASA, this was a mission that was proposed in 1958.

So there's people that have been waiting for this for 60 years, So you got on right at the tailing, Got right on.

Do you call it the Sun Shield or the So we call it the thermal protection system.

Um, and it's it's really what's letting us fly this mission.

That's the reason why we haven't pointed in 60 years because we had come up with the right materials to do it.

So the shield is a carbon carbon foam san.

It's between two carbon carbon reinforced panels.

When we're close to the sun, wherever in their last three orbits of the close approach, the top of the shield will see 1300 degrees Celsius.

When you get to the bottom, you're at 300 degrees Celsius.

So what we do, but the radiators air for the solar rays?

Um, one of the really interesting challenges.

And this was figuring out how to power the spacecraft because we're going close to the sun, right?

And so you have all of the solar flux you could ever want in the world, but the ones you could melt him, right?

So the moment you get in your way out there, it's gone.

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パーカーソーラープローブ - 毎日スマートに 198 (The Parker Solar Probe - Smarter Every Day 198)

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