As cold as it gets

[Chronox5]

If you are disappointed that the actual condensate isn't shown, it's because light would excite the atoms too much, heating the whole thing up. That's why you can only take pictures indirectly by photographing a shadow of it for example.

[mphello]

DAMN, BOSE-EINSTEIN CONDENSATE!  YOU COLD!

[happinesson]

complex inter link study of different branches of science, different machine and invention resulting to cold molecules! they are such an expert!

[boomshizzIe]

WTF i wanna SEE the material, ive only read crazy stories of its properties, i would actually like to see what it looks like

[fuunguus]

@boomshizzIe We aren't able to make enough to get a good snapshot of it.

[volvoergosum]

Well today I did read some German made a super Photon/BEC

and it opens the way for a new type of shortwave Laser

in turn this laser wil be capable to aid in even smaller circuit production

[liveevery]

This full video looked like a giant ad. Please show us the experiment in action?

[secret212000]

this is incredible!

[djskyline701]

0:25 ....DID THIS GUY JUST CALL ME A DICKHEAD?!

[kossmikham]

@djskyline701 Yes. Yes, he did.

[chargerfish1]

@djskyline701 what?

[23GrandMasterK]

@djskyline701 well... you are one. :)

[Typho0n86]

@23GrandMasterK one what

[Maarrii94]

@djskyline701 Decade, you dickhead.

[djskyline701]

@Maarrii94 A decade Ago.... Thank you so much for clarifying. I honestly believed he called me a dickhead...

[karozans]

That's great, now I can finally get a cold Pepsi.

[gaynorglowellxsingh]

That was a great teaching tool. I learned a lot. I am working on a theory and this video has answered one of my questions. Thanks

[TheNataliaRR]

If you work fast and speak to people Hello, you have scar, other think you are idiot.

[theratsofEzekiel]

Is this condensate completely synthetic? It couldn't occur in certain parts of the universe, travelling as a wave condensate and "recondensing" like an Earth raincloud?

[daf867]

and yet they still wouldn't legalize marijuana...

[Opheliaimmortal777]

The atoms do indeed get cold enough, this is regular science. And its extremely exciting.

[meusicalentall27]

Can you guys do a vid on superfluidity? There are only old ones on youtube :(

[Neutrinoghost]

What is the point of all the lenses? I know they are there to focus light, but the path of the lazer seems very complicated!

[jad0halimeh]

you have several lasers, not just one. for example, if you want to cool Rubidium 87 isotope atoms into a condensate, then you need 4 different lasers. Then you use one of those 4 beams for other purposes besides cooling, such as imaging in order to see the atom cloud as it cools. Also, for any one beam, you have to do a lot of stuff. In "laser cooling" you shine 3 pairs of lasers along 3 axes, so that's 6 beams that come from just one beam. Also you need proper light polarization (circular).

[jad0halimeh]

For that you also need more devices. Plus, not everything you see on that optical tables is lenses. You got mirrors, mechanical shutters, Acousto Optic Modulators, half-wave plates, quarter-wave plates, irises, etc... It's a pretty big technological challenge to build such experiments, and even after they start to work, any malfunction requires A LOT of effort to find the error that causes it. It is, however, truly fascinating to manipulate matter in such a way. I hope this helps.

[Neutrinoghost]

@jad0halimeh Awesome reply, thank you

[Sierrafox17]

the guy talks about creating the second machine like him and his buddies whipped one up in the garage on their spare time haha

[Gqgangsterz10]

So the moon has parts that reach -240ish c ,

What would happen if it got cold enough that the atoms began to act like superfluids ?

Anyone know?

[mictian101]

-273.15 degrees C is absolute zero. Physicist's use Kelvins, and they are trying to reach a state of "no entropy," from what I can tell, no movement. They are within nanokelvins of zero. I don't know what the threshold for this state of matter is, but I think the moon is too warm :)

[blackcraft2]

@mictian101

You can not reach a state of no entropy.

you can get close to it, but particles will always have energy.

the closest to absolute 0 will be a few nano kelvin at best,

you can not stop the movement of a particle,

It is proven to be impossible.

[libbern]

@mictian101

yeah. The background radiation in space is about 5 kelving or so:O (I believe)

[liveevery]

@libbern 2.7 K

[liveevery]

@mictian101 There is no name for that 0 entropy state. However, most atoms will turn into BEC (bose einstein condensate) before they get to that state.

The main problem with the last few nanokelvins is that to "see" the BEC, we must shine a light on it. This "light" carries energy and hence once it shines on the BEC, it raises the temperature a bit. There are other considerations as well.

[Sierrafox17]

yes but that is no where close to the temperature needed to make super fluid you need to be below 2 kelvin i believe.

[daleetMeh]

The atoms do not get near cold enough. The temperatures they are discussing in this video are millions of times colder than anything scientists have observed which occurs naturally.

[noeyedeer2jk89sx]

I thought he was saying ettins for a while...

:(

[porkachov]

Not bad. Nice and informative. I'm sure the fella at the end is gay.

[universetechnique]

Hello please check universetechnique, universetechnique2, greatsorcerer, greatsorcerer2, thaijellybean242. Thank you. Enjoy learn something new. View all my favorite. Thank me later. Be a part of what I know.Welcome to my life. You have been selected to view the opening movie trailer of the movie Touch of Fluid.Remember I was here. Thai

[pgormley596]

suck it clean

[basmikiemike]

give me a break!!! al those lenses and they are standing there just in there plain clothing!!! and what about dead skin falling from your body...( dust!!!!!! heloohooo) and the ceiling of this "lab" is creating farst amounts of dust........just the kind of circumstance you would have in a lab!!!! yeah right.......

[basmikiemike]

give me a break!!! al those lenses, and the are standing over it in their normal clothing.......do you know how many dead skins is dropping of a human everys second???? that a lot of dust !! and you don't want that on your lens on this scale!!!!!!!

[rihnosaur]

That's why if you were to step into the actual lab, you will notice big Hepa filters and canopies (to create a positive pressure on the optics table) over most optical experiments to minimize the amount of dust. Similarly, this is why these kinds of experiments require constant cleaning of critical optics and constant recalibration and adjustment.

[miamiboy74]

looks interesting; perphas ibm

[coppersreno]

manipulating matter in the future. Everything is slowly piecing itself together.

[Jimmy4240]

i watched a video in class n this liquid gas was in a glass cup and they cooled it down to a bose einstein condensate and it leaked through the glass cup

[Dentarthurdent54]

That's superfluid.

[dorgodorato]

What will we do with mater lasers?

/imagines a lightsaber

[dizzo95]

Magetic fields can Travel through near absolute zero kelvin ? as if it isn't affected by the cold & has enough power to hold an atom from a cooling chamber wall.

magnetic fields keep atoms away from the freezing camber walls - so the condensate forms. Helium 3 can not freeze - 23% of helium in the universe that can't be explained..maybe the particles in the univerese have decayed and been recycled several times because of freezing .except for Helium 3 - but photons can freeze or slowed ?

[Darkfoster22]

Magetic Fields around it not like a shield.Then useing lasers to cool it.

[truvelocity]

This video is about showing the credibility of the process to see the condensate.

Well done, very interesting and thank you for posting this. My attention span is really top notch when it comes to this kind of fascinating info.

Kudos to the scientists and engineers who worked so long and hard to figure out how to make this measuring device.

[wawens]

They don't show the condensate, just talk, talk about it, and don't say anything of interest. Waste of bandwidth.

[thrashedreality]

They did show it. Look at time 3:15 to 3:20! They can only produce a very small quantity and if you paid attention, they need use microscope to see it.

[maestroadam]

lol

[heminder]

you're just being ignorant. also, they did show it in the video.

[wawens]

They show a wobbly blue spot and spend the rest of the time saying nothing. I am not ignorant.

[heminder]

well, if you have a better technique to image it, please do share...

[rihnosaur]

Please see my response above. They actually show an image of the condensate. Why do you say that they do not show it??? An image is an Image its in false color .....but it is an actual physical image of the atoms in the condensate cloud.

[spot0914]

But... are they gonna' show what it looks like or is it highly transparent...?

Hmm...

*Ponders*

Maybe we're supposed to imagine it?

[Darkfoster22]

If you see it sould stop the Bose-Einstein condensation becuase you need energy hit it and go to eye eta so you can see it.

It should be transparent

[rihnosaur]

If what you mean is: can you see it in the visible portion of the electromagnetic spectrum?the simple answer is No. The optical transition used to image the condensate is in the near infra red and your eyes are not very sensitive to this wavelength (~780 nm). However, your standard home security camera is so you can certainly take a picture of it and do a false color image (kind of like the movie predator) that depicts the condensate.

So yes they DID show you what it looks like on the video!

[MathiusDragoon]

I don't mean to complain or anything, but the audio doesn't seem to be quite synched up to the video. This may have already existed in the source media, or as an inevitable consequence of editing. I actually think it's an excellent video. For whatever reason, i get bothered when they don't synch up, and it really distracts me.

[asemaq]

Oh a decade ago!!! LOOOOOOOOOOOOOOOL

Amazing science though. Respect.

[Nanovirus5995]

nice science and equiptment but at the start it did sound like he said "...even the dick had a go..." lol but nice

[FaustusTheAwesome]

hahahahaha it does sound like he said even the dick had a go!

[randompast]

Score for physicists!

[AVAMagneticlev]

? Is any applacations for new partical,What change in condition ends particals,how Wide is wave length or frequecy that partical is created in and after creation can to by tempchange exsist out side of this frequecy at all. Sorry so many questions.What exciting work luck buggers.

[Baburote]

Brilliant.

Whats the gas you use?

Can this tech be applied to other Atoms?

(What happens if you cool down iron as an eksampel?)

[wowstyle]

rubidium was used for the first bose einstein condensates. First is 84 was used then 85 as the properties of the atoms were much more appealing

[rihnosaur]

Also 87Rb is used quite sucessfully,

Other alkali elements like Li and Na can be cooled below the BEC transition temperature.

They have tried with Ne but it is too unstable due to atomic interactions.

[wichertdies]

0 kelvin is just an arbitrary limit we've placed because our understanding of elementary physics. in all reality, waves don't react the same as a particle, hince their properties as waves become enhanced as cooler temperatures are reached, which means that its probability of being isolated becomes closer to an approximate number. basically the bose einstein condensate becomes a way of predicting atoms the same way scientists can predict photons (ex. lasers, atomic laser, see how they connect?)

[wichertdies]

0 kelvin is just an arbitrary limit we've placed because our understanding of elementary physics. in all reality, waves don't react the same as a particle, hince their properties as waves become enhanced as cooler temperatures are reached, which means that its probability of being isolated becomes closer to an approximate number. basically the bose einstein condensate becomes a way of predicting atoms the same way scientists can predict photons (ex. lasers, atomic laser, see how they connect?)

[mcgorgomagan]

This would be great if they actually showed us the video they had captured with the digital microscope.

[pauldve]

@mcgorgomagan 1:37 is the cooling video in the top left. not as exciting as it sounds

[rabidfish02]

I lived in NZ for a year. Every American should explore beyond their own political boundries. Interesting video, I liked it a lot!

[iggy4323]

so they realise that other parts of the world are just as good, and in some cases better than, America, or what?

[jwhojunit]

0k will never be reached

[TheAmericanPirate]

And the car is just a fad. Telephones will never catch on. An individual person will never need their own computer... etc.

Never is a very, very long time

[DAKJcrew]

Do you have anything to back this up, theamericanpirate is right.

[Mtr374]

their lips don't watch what they're saying...still gave it 5/5 though =)

[FireleaderJoey]

Sweet!