An Giang info: Youtube daily report May 15 2018

Thanks to Brilliant.org for supporting SciShow Space.

[ ♪ Intro ]

The Milky Way is our home, so you'd think we'd know a lot about it.

And we do.

But a whole galaxy is a pretty big place, so there's still plenty of weird stuff that

we're trying to figure out.

And that's the cool stuff!

So, here are three questions scientists are still trying to puzzel out.

One is our galaxy's shape.

We know that we live in a spiral galaxy, with long, sweeping arms packed with stars.

But why's it like that?

After all, stars form from a fog of gas and dust called the interstellar medium, or ISM.

And the ISM is everywhere within the galaxy, so why do stars congregate in the arms?

Well, we don't totally know -- but we're making progress.

One clue comes from structures called filaments that astronomers in the 1980s started to find

at the cores of some galactic arms.

Filaments are dense regions of the ISM that are incredibly thin, up to a hundred times

longer than they are wide.

They can stretch for hundreds of light-years but, weirdly, seem to exist on all size scales,

kind of like a fractal.

Together, they form a sort of galactic skeleton for the Milky Way, providing ingredient-rich

places for new stars to form.

The European Space Agency's Herschel Space Observatory has even found filaments connecting

all the closest star forming regions!

But exactly how many of these structures there are and how they play a role around here is

still up for debate.

That's not the only mystery our galaxy's stars present.

As astronomers have mapped out the positions and speeds of nearby stars more accurately,

they've found they're less predictable than expected.

Instead of mostly circling in a flat plane, a research group discovered in 2012 that many

stars seem to be moving up or down about 10% as fast as they're circling the galactic center.

When mapped out at large scale, the Milky Way's stars even seem to be rippling with waves.

Studying these waves is called galactoseismology and, like the study of seismic waves here

on Earth, it may reveal clues about unseen events.

The waves are probably the result of a big collision with the Milky Way... but where's the collider?

Researchers aren't sure, but they think there are two likely possibilities, both of

which would've happened about 100 million years ago.

One's kind of standard: an interaction between our galaxy and one of its many satellite galaxies.

The other, though, is really cool: It's possible that the Milky Way collided with

a massive dark matter structure, and its gravity stirred up all those stars.

Although we can't see dark matter, we know it's all around us, especially near our

galaxy's outer edges.

But just because we can't find the culprit, doesn't mean it's gotta be dark matter.

Whatever the collision was, its trajectory probably carried the other object to a place

beyond the galactic core and basically out of sight from Earth.

There's also at least one piece of evidence suggesting a dwarf galaxy might've been

the culprit instead.

Astronomers have found a few stars traveling so fast that they couldn't have come from

our galaxy, so they might have been knocked loose during that big collision.

Either way, we'll have to work fast to figure this out because those waves of stars will

probably disappear in another hundred million years.

Then again, maybe we won't have to work that fast after all.

Finally, stars aren't the only thing traveling weirdly fast around here.

For decades, astronomers have observed a few clouds of gas moving at strangely high velocities

-- up to 90 kilometers per second faster than the stuff around them.

At that speed, it would take only a year and a half to travel from the Sun out to Neptune!

Always on the lookout for a clever name, researchers call them high-velocity clouds.

These clouds are mostly found in the outer, halo region of the Milky Way, and they're

often observed to have a low metallicity, or abundance of heavier elements.

And they're not small, either: They can contain millions of times more material than

the Sun and span tens of thousands of light-years.

Scientists have four main ideas about where they might have come from:

[yawn ort] The oldest hypothesis, proposed by famous

astronomer Jan Oort, suggests that the clouds might be the far-flung leftovers of the process

that formed the Milky Way.

With only the weakest gravitational pull affecting them, that far-off material would've taken

billions of years to get here, speeding up along the way.

Another idea is that -- because they do have such low metallicity -- high velocity clouds

are the remnants of an ancient collision between the Milky Way and another galaxy.

Hey, where have we heard that before?

A related hypothesis is that the material is made up of gas stolen gravitationally from

a satellite galaxy.

That seems especially likely for the clouds found in the southern hemisphere, which is

in the direction of the Magellanic Clouds, our closest galactic neighbors.

One last idea is that these clouds actually came from the Milky Way all along.

Perhaps a powerful supernova explosion hurled them away from the galaxy's disk, only for

gravity to claw them back before they could fully escape.

There's even a chance different clouds could have different origin stories.

To figure that out, astronomers are studying the composition of each cloud in detail.

If they were created in different ways, there might be a signature of their home still waiting

to be detected.

We'll just have to wait for the results.

We don't yet know the answers to any of these Milky Way mysteries or many others out there.

But put them all together and our galaxy suddenly seems a lot less isolated and our cosmic neighborhood

a lot busier.

Just watch out for any flying galaxies.

One place within the milky way where we can figure out the answers to big questions relatively

quickly is Brilliant.org.

Inspired by these existing questions about the milky way, I'm working on the Dark Matter quiz.

Leading up to it was a lesson and quiz on the fate of the universe that I looked through

to prep, but this starts off pretty easy.

So this question wants to know what is the dominant source of mass in our solar system.

So the Sun!

So I got it right and so did 72% of the other people in the Brilliant community.

Which is a neat thing about Brilliant because you can see how you did but also see how other

people did when they answered the question.

I think what sets Brilliant apart from other education sites is this community aspect.

On Brilliant you can answer questions that other people have submitted or you can even

submit your own questions to be answered.

So check it out for yourself and let us know if you submit a question and I'll try to solve it.

And the first 777 people to use that url to sign up for an annual premium subscription

will get 20% off.

Plus, you'll be helping to support SciShow Space when you do, so thank you!

[ ♪ Outro ]

For more infomation >> 3 Things We Still Don't Understand About the Milky Way - Duration: 5:42.

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12 huevos sorpresa de Miraculous Ladybug Barbie Soy Luna Frozen en español toys surprise for kids - Duration: 17:44.

Hi, my friends, I'm Olga and this is the channel of surprise eggs and toys

in this video we are going to open 12 eggs of chocolate surprise 1 of frozen la

disney movie other than pp and the more sympathetic pig another of the

canine patrol

the bravest puppies other than one of the series of I am moon

another of our friendly children little yellow friends other planes

disney movie with many planes

another of transformers the robots that transform into vehicles

another lemon is a little fish that he loses and he has to look for his daddy

another one of the most friendly ones characters

and another one of barbie the most beautiful doll also another one of masha and the bear

Massa is the funniest and hottest girl wheels action cars

and let's start for the surprise egg of frozen to that

no one wins her is elsa's sister let's remove the egg wrapper

see what we find inside the egg of chocolate what will be our surprise

let's see we remove the monitorio and we break the chocolate egg

to see that there will be here is the house alone and here inside is the surprise so

let's open it we take out

everything and here we are going to see what there is a piece of paper with what you can touch

see what things can touch us today that I have put it upside down I'm going to stop it

well look at all these figurines for collect from the frozen movie with

the precious characters and what are the that has touched us let's see here is

in a bag we are going to take it out

what is a pendant with the face of anna what

cool look what a pretty go eyes coolest greens he has I love

let's leave it here and let's open now the surprise flight of pep puppy

this very nice appointment that is in the beach with the swimsuit and the umbrella

see what we have removed the packaging

and what will it have inside we are going to see it in the chocolate egg we're going to

break it

and inside there is a purple capsule and inside is the surprise so

let's see what there are tears and what is this we get everything and I'm going to

teach the piece of paper with what you can touch look are ornaments for

sneakers with the characters of the series of drawings of pepa veis are put

well the laces of the shoes and the that has touched us is one with a cardigan

rabbit with a carrot I love to cardigan rabbit the carrots because it is

a rabbit or a hare I'm going to remove the chocolate

I've stayed here and we're going to open now the surprise egg of the

canine patrol this egg has a image of ravel you know that the rappel in

English means debris ravel is the puppy that takes the crane to remove

with the word that is of rubble by that's called ravel let's see what it has

the chocolate egg here is the capsule that has chocolate very very

glued let's try to remove everything if

we can

and if not now and now let's see what has inside this capsule to see what

is here we get everything and this is the paper

with what we can touch, they are figures of the patrol characters

of the canine of the puppies and they are to put in the pencil and we have touched

East this is ryder the child who runs the

canine patrol in their missions great and we're going to leave it here and we're going to open

now the surprise egg of I am moon that is super funny that doing us for

the truth let's see what's inside of the egg of the series of I am moon

we remove the packaging

and we are going to see that there is a moon is a disney series is a girl who sings

dance and skate super cool we remove the chocolate and here is our capsule

we still have a little bit of good chocolate is the same let's open it

now remove it to see what is inside what be

nothing more to know this is the piece of paper with everything that we

can touch look at what else chulas are great there are bracelets

key rings earrings rings and we have played this school but it is only

an elastic band to hold us the hair although we can also put it

bracelet look what a very cool image of moon in a pendant shaped like

flower I love let's leave it here and we're going to

continue with the next egg we remove the chocolate that has stayed around here and

let's open now the surprise egg of looking for nemo let's see what it has

this egg from this little fish that they call emo and he's lost and his dad

You have to look let's give here until the egg of

chocolate we all break

and inside we have a color capsule blue to see what's inside we remove everything

the chocolate that has stayed here glued

and we see to see that there is strong this capsule

now and we take everything look at the paper with everything that can touch us we are going to

see are movie figurines looking for the characters' nemo with

suction cup that produces paste in crystals and make us an aquarium a fish tank look at what

nice we have played nemo with a windy you can see it where

We want a window in an aquarium in a fish tank where you think you are

beautiful let's leave it here too and go

to continue now watching the surprise egg of transformers the robots that

transform into vehicles Let's see what this little egg has inside

we remove the paper and let's see what this egg brings

here is we are going to break it

and here is our capsule which is a color well translucent white true

we open here is we take everything out since even the little piece of paper with what he can

touch look what cool are balls jumping with images of the

characters of transformers robots transformers

and we have touched this jumping ball of a yellow transformer robot

Look how cool I love it is beautiful I love bouncy balls, we're going to

leave it here on one side and we will continue and then we are going to open the egg

airplane surprise plains in English I think it is said to be

a Disney movie in which the planes make a race it seems to me

we are going to remove the packaging and we are going to see what's inside here is the egg

we break it and we take out our house lita that she still had a

little bit of chocolate stuck good is equal to see what is inside we take everything

and see what it is to see what we have for here

well look here put what you can touch are aircraft and vehicles of the

airplane disney movie and this from here is the stickers to stick on the

plane that has touched us here we have the pieces is a plane of white color and

we have to put the stickers for to watch it look here are the

instructions how do we have it do so I'm going to ride it and that

finish I teach you that we are going to be Well, I've got it

plane has left me with all the stickers put look up to the propeller

you can spin around let's fly the plane or your plane site and we're going

now to open the surprise egg of children these characters that make me laugh so much

to me they are super fun let's see what's inside

here is the chocolate egg what we break

and inside a colored capsule yellow orange / yellow and orange

this truth let's see what's inside here it is and on the piece of paper it tells us what

that can touch us that are 2d figures of minions disguised as characters

different look and we have played the mini dress and wow and look has a

suction cup to stick it and a base for stand it up if we want that funny

I love what you leave here and we're going to open now this surprise egg behind

of hot wheels that are very cars fun toy to play and have

removed these eggs surprise of the cars with wells and we will see that

they have inside to see we break the egg of chocolate to see what there is expected to be

here this sheet is a little bit stuck on chocolate to the capsule is already what

remove everything and let's see what is here inside

what will this be a lot of pieces of blue color an adhesive and let's see what

It is on the piece of paper that he will tell us to see what is all this because they are pieces tops

Look, there are different colors that we can already touch different centuries

to decorate with hot wheels vehicles do not

look at this is the adhesive that we have what to put full of different models of

hacker cars and these are the pieces of blue color

to assemble our iron and already had it mounted, look how cool

it's really cool, I'm going to try it out see how the laps I put from here

to have space and let's see wow general wheel is worse da to see

how long it goes around, it seems like it lasts a lot my mother does not stop

now it has lasted a lot going around let's leave it here and continue with the

surprise degrees let's open now the from behind with the image of the 16 sookie to

see what has the paper removed trolls are colorful characters

very funny that they love to be hugs have fun sing and dance

and also the crafts we are going to remove the chocolate and inside we have

a clear pink capsule looks like have that brings the chocolate very very

stuck this case the a-2 and we can remove the most we can that is super stuck

Well, there may be, maybe we'll go seeing what he has inside to travel here

is another little bit and we are going to take the surprise of the capsule to see what is

look at the piece of paper with what you can just play a lot of figurines

different there are six to collect with characters in 22 of the trolls and he has

touched the one of here and of love to the diamond emirates cool this seems to me not what

I had in my collection that I had not touched still great

we leave it here and we're going to open now the barbie surprise egg the

doll look how cool here barbie and gorgeous with sunglasses let's see

what's inside the barbie egg we break the chocolate

and inside there is a pink capsule beautiful and let's see what's inside

sometimes we take everything first we take out the piece of paper look at what

things can touch us steals or what chu look how pretty there are a lot of

beautiful things about barbie and she has touched

a necklace look what nicer pendant of pink barbie I love

You see has a string and everything is here tied pink also lovely that

'granite let's leave it here and we finished with the last egg of

massa and luso this naughty girl that age so much work this bear

to take care of her let's see what she has the chocolate egg here is the house

lita that receives translucent and inside let's see what

we take everything and see what we have done, look at what

can touch us are puppets for fingers of animals and how nice

they passed the one that has touched us Look, they are super fun

let's see the one that has touched us is a penguin thank you and no cell phones what

pretty a penguin and everything has the drawing on both sides to see I'm going

to put the finger the puppet

oh how fun that is bilingual nito the kids at 31 cool and you're

are the surprises that have touched us today I have to ask you a question for

know if you've seen the whole video of what color was the capsule that was inside

of the surprise egg see barbie doll you tell me in a comment and if not

you subscribe to the subscribe channel and very important to give the bell

notifications that there are next to subscribe to be notified by each

once you upload a new video and do not miss you none is very important to give

the bell a greeting and even the next

For more infomation >> 12 huevos sorpresa de Miraculous Ladybug Barbie Soy Luna Frozen en español toys surprise for kids - Duration: 17:44.

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Independent Queen LOL Surprise Doll Drawing and Coloring with Glitter | Learn Colors for Kids - Duration: 9:19.

BROWN

BLUE

PINK

BLUE

PINK

BLUE

PINK

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Use a socket №12

Use a special spray to lubricate the brake drum seat

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What's the worst thing Charle...

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H-King Super Kinetic Sport Glider 815mm PNF Maiden flight - Duration: 22:12.

This is great. Great...I cant believe how much fun this baby is, how easy it is to handle and such a good flyer. Iam really impressed by the performance of such a small glider. I love it and I cant wait to have more fun with this little devil. Oh yeah... Big salute to all RC lovers and pilots all over the world from Captain Blaž & Pilot Robert Slovenia. See you soon...

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3 Things We Still Don't Understand About the Milky Way - Duration: 5:42.