How To Make Colour With Holes

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Күн бұрын

Scientists are being inspired by nature to design the next generation of security devices. Arrays of nanoscale holes create beautiful reflected colours that are almost impossible to forge. This video was supported by TechNyou - check out their series on logical fallacies: bit.ly/WBsD31
Soon these nanoscale security devices could replace holograms. They are many times more reflective than holograms, and although the structures are smaller scale, they are lower aspect ratio and therefore easy to manufacture in bulk.
The electron wiggle simulation is from PhET, the best physics simulations ever: phet.colorado.edu
Special thanks to Thomas from Copenhagen who showed me around the city including the science museum where he assisted with the soap bubble demonstration.
Clint Landrock is the Chief Technology Officer for Nanotech Securities: www.nanosecurity.ca
Music is "Firefly in a Fairytale" by Gareth Coker

Пікірлер: 1 600

@jamesmayers205 7 жыл бұрын

So funny because they joked about talks with the australian government about inclduing this on notes and now new australian $5 note that rolled out last week actually ended up with this technology

@gusstavv 7 жыл бұрын

3 years of negotiating this include

@randomdude9135 5 жыл бұрын

@@GregBowler Store the excess laugh so that you can laugh whenever you want.

@Competitive_Antagonist 4 жыл бұрын

Aren't these just generally called holograms? I've seen things like this decades ago.

@RDCST 4 жыл бұрын

@@Competitive_Antagonist No, this are more like hollowgrams. ROLF!

@randomdude9135 4 жыл бұрын

Wow! I laughed at my own comment 8 months later

@StopChangingUsernamesYouTube 5 жыл бұрын

So if I cut my hair _really precisely,_ I could save on hair dye? Sweet!

@prestonang8216 4 жыл бұрын

William Shreckengost Well if the wind came it could change colours or just become normal again, neat!

@overloader7900 4 жыл бұрын

You would need a laser

@someonesomewhere8869 4 жыл бұрын

@@overloader7900 A shovel would so work as well. Not.

@overloader7900 4 жыл бұрын

@@someonesomewhere8869 pepe the frog officially died in 2016

@someonesomewhere8869 4 жыл бұрын

@@overloader7900 pneumonia sucks. Wash your hands.

@syrus3k 10 жыл бұрын

"I cannot comment on that" = "Yes, absolutely. That's 100% correct"

@alejandrobailon1761 5 жыл бұрын

Man I don't know who or where you are but look it up on Google, that was a definite yes

@someonesomewhere8869 4 жыл бұрын

It was a no if you happen to look it up on bing.

@darrenreuben4222 9 жыл бұрын

do you intentionally have those wings in the back ground to make you look like a fairy princess ?

@SilhSe 5 жыл бұрын

1:30 Fairy Princess! 😍

@GeodesicBruh 5 жыл бұрын

Lol

@D1GItAL_CVTS 5 жыл бұрын

"I cannot comment on that."

@just-the-slooperman-trampi3250 4 жыл бұрын

I think he looks good! For this tiny part of what makes up his life, let him have his moment

@maxcai3795 3 жыл бұрын

It makes it look like he's leaning towards me

@rubenito84 8 жыл бұрын

1:30. First male Victoria's Secret model

@WigantX 8 жыл бұрын

you won the internet, sir

@bish6124 8 жыл бұрын

Lol omgggg😂

@justAguyDs 7 жыл бұрын

@adnaanali6956 7 жыл бұрын

Ruben FZ he

@amandachang247 7 жыл бұрын

@KartikKapilaMusic 9 жыл бұрын

Probably the only video where Derek is clean-shaved

@MaidaA22589 8 жыл бұрын

There's also the Experiments A Capella xD

@erik_raven 6 жыл бұрын

What?

@DirectHitDerek 6 жыл бұрын

Kartik Kapila you called?

@rupaprasad1920 5 жыл бұрын

There is one more

@Willam_J 4 жыл бұрын

If he entered the clean room, or if there was even a chance that he could have, he would not be allowed to have facial hair.

@veggiet2009 7 жыл бұрын

Wow, as a graphic designer I really want a printer that could do this

@Hirschi74 7 жыл бұрын

just take a small needle, a really small one, then take some time, and take some precission, i mean really good precission. C'mom, you're an designer. Use your imagination :)

@user-qq4wu8sc2k 7 жыл бұрын

Some powerful laser should help. If it can evaporate tiny layer of material for few impulses then you can do electromechanic guiding system to move it across the image. Or maybe better get two lasers. It will give you ability to evaporate only small interferential points.

@anandsuralkar2947 5 жыл бұрын

Whoa

@tihzho 5 жыл бұрын

You can just use interference blue pearlescent pigments with clear ink, but not with a inkjet!

@lastyhopper2792 Жыл бұрын

@@user-qq4wu8sc2k i think it is impossible to focus the light to be that small

@MrWolfy43 9 жыл бұрын

"Most people know that it's a form of electromagnetic radiation..." Psh yeah of course I knew that. Duh.

@jasonbatmanrogers 8 жыл бұрын

+MrWolfy43 By most people, that means anybody who paid attention in 3rd grade science class.

@kellyorator9007 8 жыл бұрын

+Jason Rogers no one teaches that light is a form of electromagnetic radiation in 3rd grade.

@jasonbatmanrogers 8 жыл бұрын

Yeah, actually they do. That's a REALLY basic piece of information, akin to: things fall when you drop them, water is wet, etc... It's super basic. Maybe not 3rd grade in some schools, but certainly by 5th grade.

@jasonbatmanrogers 8 жыл бұрын

Yes, technically no. But in the everyday vernacular, water is related to the concept of "wet". So in this context my statement was accurate.

@jasonbatmanrogers 8 жыл бұрын

Well that's because you're of at least average intelligence.

@veritasium 11 жыл бұрын

It's called Catalyst and it's on ABC1 in Australia Thursdays at 8pm starting Feb. 7. It may be posted online if you're not in Australia. More details to come.

@RedMachineCCCP 11 жыл бұрын

You were able to explain in 5 minutes what my Waves& Optics teacher couldn't explain in an entire semester! My teacher made interference sound difficult, but thank you Derek, for clearly explaining scientific concepts in a palatable way, and thank you for not ignoring the math!

@hhtlib 10 жыл бұрын

oh yeah thats why a cd looks like that

@majncraftchlapik 10 жыл бұрын

Oh yeah i never thought about that.

@SC-zq6cu 6 жыл бұрын

A CD actually looks like that because of gratings and not holes.

@danielsteger8456 5 жыл бұрын

@@SC-zq6cu he was talking about the butterfly wing technology not the hole one

@SC-zq6cu 5 жыл бұрын

@@danielsteger8456 He was talking about the rainbow colours of cd. As far as i know those colours in cd are caused because of gratings and not holes like in the butterfly wing.

@danielsteger8456 5 жыл бұрын

@@SC-zq6cu it said in the video that butterfly wings get their colour by trapping light in their gratings in their wings. they are not holes.

@FlunkTVGaming 8 жыл бұрын

I guess this is why the back of a cd looks all rainbowish sometimes.

@dot_frost 8 жыл бұрын

+GameZap! cds have tiny little holes in it created by a laser burn. that´s how we put data into cds. and that's why it is rainbowish

@AlroyVincent 7 жыл бұрын

Thank you so much, you really amazed me xD

@FlunkTVGaming 7 жыл бұрын

FckThtShit11 Yeah, I know. That's why I said what I said?

@HoFFCam 7 жыл бұрын

It does not apply to rewriteable discs. There it is different molecular state of a material. hmm. I might be mistaken that they are also colorful.

@compwiz00 7 жыл бұрын

Even blank ones which haven't been written still have a single very tiny spiral groove to guide the burning laser. If you burn only half of a CD, you can see where the laser has been.

@veritasium 11 жыл бұрын

I got it! I'll see if I can include something like this in the vids to come. I'm also looking at quantum computing so a discussion of measurement will be essential there too.

@KhaiGK Жыл бұрын

How are you doing

@_ericfish7 8 жыл бұрын

I wish you were my science teacher

@veritasium 11 жыл бұрын

Very true! I actually had interviews from New York City about this, but somehow in all my travels the footage got lost. I was pretty gutted but I needed to move the story along anyway. But I'll be coming back to this point within a few weeks.

@TheStarCycle 5 жыл бұрын

One of the coolest videos I've seen in a while, especially the visualization of how soap bubbles cancel out certain wavelengths of light.

@veritasium 11 жыл бұрын

thank you! I spent a lot of time working on it and people like @minutephysics gave me great advice, cutting things out and telling me to add diagrams, animations, etc.

@CakesByChoppA 11 жыл бұрын

Great vid. also great to meet you the other day! Subscribed :)

@aug3842 3 жыл бұрын

What if I replied to this comment

@youtubeshortsviral1361 3 жыл бұрын

🗿 ok Oh sh...

@aarceus5389 2 жыл бұрын

How long has it been since you guys had a chat? Also were you verified when you guys had a talk?

@NormanBEnz-dt3hr 5 жыл бұрын

0:13 "most people know that [light] is a form of electromagnetic radiation..." uh, no. *most* people do not know that.

@RenaudAlly 4 жыл бұрын

@@coyotedomino why? Is your reasoning that science is common knowledge?

@TonecrafteLuthiery 8 жыл бұрын

The only thing that could make this channel more like VSauce is if the guy popped up into the frame at the beginning of every paragraph.

@Hirschi74 7 жыл бұрын

HEEEY! VSAUCE! Michael here!

@mattpeter2845 10 жыл бұрын

Coolest part of this vid imo: seeing the cool clear part of the austrailian bill. I had no idea they were like that.

@Chris_Cross 5 жыл бұрын

Excuse me, it's called a note.

@adibferdous826 7 жыл бұрын

Derek is looking awesome after clean shave.

@JM-lh8rl 7 жыл бұрын

Adib Ferdous Totally

@MarkHuang88 11 жыл бұрын

So good to see your videos again. I've been waiting a long time for them. You are my favorite 'science' youtuber of them all (MinutePhysics, Sixty Symbols, SmarterEveryDay, etc). Hope you can post more frequently.

@surajjadhav1131 8 жыл бұрын

The way you explain things is the best ever... I have seen.. I appreciate your efforts for making such videos :)

@realmetatron 9 жыл бұрын

See Richard Feynman's lecture series on QED here on youtube to understand the physics behind this. He explains it in the first of the four lectures.

@VoraciousPhantasma 8 жыл бұрын

THIS IS THE GREATEST VIDEO I'VE SEEN IN YEARS

@veritasium 11 жыл бұрын

you may have seen cyan, which is actually a mixture of red and blue that looks like a light green.

@volcano819 11 жыл бұрын

This is pretty cool. A lot of the concepts you've described are what I've been studying in my mineralogy class because it deals with looking at rocks that have been sliced into sections of about 30 micrometers thick (called thin-sections appropriately enough). These thin-sections are then examined under a petrographic microscope so that the minerals in the slide can be identifed by how the light behaves when it passes through them.

@srpenguinbr 8 жыл бұрын

here in Brasil, the Reais (the money we use here) can change the colors from blue to green, depending on the point of view.

@srpenguinbr 8 жыл бұрын

+Felipe Lorenzzon how does it work?

@anirudhkonduru7054 8 жыл бұрын

+Felipe Lorenzzon lol

@hey7328 8 жыл бұрын

+Felipe Lorenzzon the holes are in on an angle so they get bigger and smaller depending on point of view

@levislimak103 10 жыл бұрын

"I cant comment on that"..........that just screams yes I have been in contact with the Australian government

@batya7 11 жыл бұрын

Incredibly cool! Imagine using this for fashion fabrics and textiles!!

@elainethepotterful 8 жыл бұрын

These are great explanations!

@flashbash2 7 жыл бұрын

0:13, well according to all your street videos, I'm highly skeptical about this claim

@snkatk 9 жыл бұрын

I wonder. If you had a surface of nano-mechanical plungers, each 100nm wide and able to actuate pependicular to the surface 100nm, could you create a system for a display? THere is some precedent for this, DLP projectors have tiny mirrors on a chip that can move around. Now those mirrors are (according to wikipedia) 5.4µm, which is a way bigger, but they also needed thier pixels to pivot in two directions, if we have it acting as a solinoid, 100nm might be a viable option. Though what strikes me as the biggest difficulty would be the distances between the holes really. I'll have to give this some further thought.

@simonsuarez7561 3 жыл бұрын

This is one of the best explanations of Diffraction I've ever seen

@SocratesAlexander 5 жыл бұрын

One of the best episodes ever. (As good as "the roundest object" episode. And many other, as well.)

@Steph-wz3uj 8 жыл бұрын

Your a pretty fairy

@codedgoat3868 8 жыл бұрын

+Stephanie Giersz augh... I hate to be an annoying grammar police but please, use correct grammar. *you're

@blackseoulite 8 жыл бұрын

+Donald Trump 😂

@Chris_Cross 5 жыл бұрын

*you're

@LiftPizzas 7 жыл бұрын

If you had moved to the US instead of Canada, would this have said "color" or "colour" in the title?

@f4ke444 6 жыл бұрын

That my find sir is a great observation of the butterfly effect. Wich has nothing to do this video but its cool

@user-de1xi2uf8d 6 жыл бұрын

The entire english speaking world except the US spells it as "colour"

@lizziedsouza2844 6 жыл бұрын

Wait so in the U.S they call it color?

@wuestion9473 6 жыл бұрын

Nobody asked. :D USA is a hipster.

@toadstar1004 6 жыл бұрын

no u In the USA, it is indeed “color.”

@aidanwansbrough7495 5 жыл бұрын

That's very interesting! You explain these things really well, thanks!

@MrA7Xfan13 11 жыл бұрын

this is so interesting, i love it!! i can watch these videos all day long, i'm so hooked into this it's crazy:)

@JZ0ver 5 жыл бұрын

“I cannot comment on that” is the another form of yes 😃

@samramdebest 10 жыл бұрын

but where does the energy go from the light that gets destroyed, by interfering with itself?

@GordanCable 10 жыл бұрын

Great question! I think it goes into corresponding bands of constructive interference in higher and lower frequencies, but I'm really not sure.

@SuperVelvetEars 10 жыл бұрын

Possibly it might have something to do with the fact that there's electric and magnetic parts and I think they're out of sync so constructive interference in one is destructive interference in the other which should keep energy conserved. Not 100% certain though.

@samramdebest 10 жыл бұрын

SuperVelvetEars GordanCable But if you only send the frequencies that get destroyed and not the other ones, than no energy can go to constructive interference

@GordanCable 10 жыл бұрын

Yeah, thats not how white light works. White light consists of all frequencies of visible light. The video doesn't mention what would happen if monochromatic light hits a film. Great question though, I wish I could give a better answer.

@SuperVelvetEars 10 жыл бұрын

I've read around a bit on this and this is what I understand: Think of it like two people moving a skipping rope up and down, there will be points where the rope will be stationary (nodes) and points where the skipping rope is moving the most (anti-nodes). The nodes aren't moving, but still contain energy in the form of pressure acting on it. It's a similar thing with light, just because you can't see it doesn't mean it's not exerting a force and I think the force is magnetic, though it's very hard to get a straight answer to this on the internet!

@Huse022 2 жыл бұрын

Have you heard about Multi-Layer-Optical film? Very similar in that they manipulate light using nano layers of two different alternating polymeric materials with different refractive indices. Those films look pretty neat!

@samakotaish4974 11 жыл бұрын

Nice video dr.derek... You're such a great person and I respect you a lot :) thank you

@JoshuaRando 10 жыл бұрын

I wonder if you could do this to your skin? RAINBOW SKIN!

@osvaldasbeniusis6796 10 жыл бұрын

would probbably hurt alot to get those holes punched in you and would probbably heal soon..

@majncraftchlapik 10 жыл бұрын

Skin is already really rough and not smooth at all. Glass can be really flat so the holes wont mess up

@ans234a 9 жыл бұрын

Your skin already has holes where do you think sweat comes from?

@bitmeister 9 жыл бұрын

Actually it wouldn't hurt at all. It's a nano needle, smaller than a mosquito's bite. But it wouldn't work because this effect requires the structure to be rigid, whereas skin is soft and would simply fill the hole up as soon as the needle is removed.

@bitmeister 5 жыл бұрын

@Aniket I reckon you'd only be able to see a spot of color, since our skin isn't flat.

@spitzbubezumquadrat 10 жыл бұрын

the thumbnail looks as if he was some strange kind of fairy

@dmac48 11 жыл бұрын

Gotta love those PhET physics simulations from U. Colorado!

@davidflores909 10 жыл бұрын

Wow, thank you for the links. They were very useful. It's interesting to see how the receiver electron behaves inversely to the waves, as the transmitter moves to creates the waves.

@1231rb 9 жыл бұрын

So to remove the green wvelength to form magenta, the thickness of the soap film would have to cause the the crests of the 1st reflection to align with the troughs of the 2nd reflection (and vice versa)....causing destructive interference, the removal of the green wavelength, at that spot on the soap film. Is this correct?

@eBvsaca 9 жыл бұрын

Yes it is.

@1231rb 9 жыл бұрын

gracias

@shin1300 8 жыл бұрын

Why do they named it Blue morpho butterfly if it has a color of gold and white?

@felixkakashi1449 11 жыл бұрын

Interesting! I actually have been watching a series of videos on the birds of paradise from the Cornell Lab of Ornithology and they talked a bit about iridescence and structural colors. This video was very helpful in making sense of a lot of concepts that they just skipped over. Thanks!

@avigyabhattarai8158 5 жыл бұрын

wow back after a couple of years and we got new notes and with some features of nano structures within them .. cool

@derpyhooves7349 7 жыл бұрын

Oooooh god, that is genius, I FINALLI got it! So when u explain how the green is removed, since u've got 250 nm between the first and the second wall, multiplied by two it gives 500 nm which is the exact distance that green light travels for a full wavelength, and so it meets the green light that is the same "state" (troth or... what was it called again xD). I got it at like... The fifth view of this video.

@hatimhatim2008 7 жыл бұрын

i just got it after you explain ._. lol thanks still i'm quite confused about how that tiny tiny hole can reflect light, at first i imagine it would be like filtering the wavelength of visible light and only allow certain wavelength to pass through, but it seems like it's not the case

@DANGJOS 3 жыл бұрын

@Derpy Hooves Yes, but be careful though. The graphic was greatly simplified. If the green light is shifted a full wavelength, then that actually means it should *constructively* interfere, not destructively interfere. However, it does indeed *destructively interfere* because there is a 180 degree phase shift upon reflection of the soap surface. Another confounding factor, that was also simplified, is refractive index. It actually shouldn't be 250 nm because the wavelength of green light is actually shorter in the soap film, since the light is travelling slower.

@GabeNewellDFTBA 10 жыл бұрын

What if you accidentally punch out that film on your bank notes?

@ThisIsDavidBlack 9 жыл бұрын

It's the same as the rest of the note, just without the coloured opaque part. You can't really damage them easily, I've never tried but I'd imagine it would be hard to tear one. They're a bit like very thin laminated paper.

@Lynxx377 11 жыл бұрын

My work as an undergraduate student is on nanotechnology, and these kinds of examples inspired me a lot to study about it all... Also, when I had Optics, these things made everything more clear to me. Cheers!

@Gairhym 10 жыл бұрын

These videos are so amazing.. Thanks!!!

@benb.564 9 жыл бұрын

Is the same process used to create that shiny 3d mark on a credit card?

@alegend4evr 9 жыл бұрын

A similar effect, but rather than holes they use a surface that you could compare to a set of razor blades in a shaver. Since the surface is rigid and reflective, light will refract around and then sooner or later get to you eyes as the original white light but with it color pattern blended around to make it appear as a random pattern of color (the red, blue, green, etc. colors).

@swarner2014 9 жыл бұрын

Dear Veritasium. One day when I was lying on my back with a straw hat covering my face I found that if I focused my eyes correctly upon the holes in the straw I could see the surface of my eye. When I blinked I could see a line in the fluid upon my eye like a windscreen wiper and particles of dust drifting across the surface. Could you explain this? Does the small aperture cause the light reflected from the inside of my eye to come into sharp focus like a pupil creating a reverse projection.

@MikeTrieu 10 жыл бұрын

Another thing to think about is what if you could make those holes variable in depth or thickness and have that variability programmable on demand? That's essentially what Qualcomm did when they invented the Interferometric Modulator technology for their Mirasol display systems. By modulating the depth of the resonant cavity, they can generate a brilliant and wide gamut of colors using very little power and no other light source other than what's available ambiently. Excellent sunlight viewing.

@rosecastelao6490 10 жыл бұрын

Thanks for the video. I now understand a little bit more about light. You looked great with those blue morpho wings behind you, by the way.

@ariellewest5024 8 жыл бұрын

I wish the US would do something like this. However we (US people) seem to be stuck in the past.

@cortster12 7 жыл бұрын

We do this now, actually.

@blackseoulite 8 жыл бұрын

I have a 100 dollar bill that has the transparent tape on it.

@kengriswold8363 8 жыл бұрын

+Destinee Byrd Very good, the only way I could hold on to $100, would be with transparent tape.

@blackseoulite 8 жыл бұрын

:) *****

@MrSilentfire007 10 жыл бұрын

I enjoyed learning how light can create color just by adjusting the amount of wave lengths that pass through an object. Thank you Veritasium :D!

@1959Edsel 10 жыл бұрын

I have a framed Morpho almost exactly like the one in the video. It's beautiful.

@InvertedCreeper 10 жыл бұрын

Australia has many technologies exceeding that of other countries, we have great healthcare, low crime rates, better security oh and we invented wi fi which a lot of people would have used to watch this video

@SinHurr 10 жыл бұрын

And a killer minimum wage!

@rowanclarke3192 10 жыл бұрын

YAY AUSTRALIA!!! And lots of other countries but mostly AUSTRALIA!!!

@vk3hau 4 жыл бұрын

and the blackbox flight recorder.

@LESLEYYY0 8 жыл бұрын

2:33 lmao he has wings :p

@chydedelaplace8947 7 жыл бұрын

Awesome video, thank you!

@Eaglechopper1 11 жыл бұрын

Plus it looks so cool, i reckon we have the most colorful and vibrant notes

@maytons 9 жыл бұрын

Sad that we see fiat currency as so valuable.

@VoluntaristSociety 8 жыл бұрын

Maytons exactly, the central banks prints more fake money than any counter fitter, so whats the point?

@pastorlarry1950 10 жыл бұрын

The butterfly proves Intelligent Design. No amount of random anything will result in such a wonderful structure.

@pastorlarry1950 9 жыл бұрын

If its not random then it is designed! Obviously, this one example doesn't prove Intelligent Design by itself but it adds to the proof because is it so precisely designed and functional. Evolution only works because it is asserted that it works. It is a world view (just like Creation)

@zeke1220 9 жыл бұрын

pastor Larry Evolution does not *work*, it just happens. *Working* implies that there is a goal and does not apply to natural phenomena.

@pastorlarry1950 9 жыл бұрын

That is an assumption which is what I have been saying all along. But the preciseness (if that is a word) of this butterfly wing is an example of design and "work". One cannot prove with an experiment that this kind of precision "just happens". This kind of precision in our collective experience has always come about by careful planning and design and intelligence. If what you say is true then why do we see in the science literature words such as "tweak" "tinkered with" etc. If nature tinkers with the organism to make it "better able" to survive that is a goal, which implies direction or design or intelligence to know what to do to make it better.

@zeke1220 9 жыл бұрын

pastor Larry There is a difference between presuming and assuming. Evolution is surely based on a few presumptions, but intelligent design is based on assumption. What makes you think that this is precision?

@pastorlarry1950 9 жыл бұрын

One of the meanings of presumption is assumption. Evolution is based on the assumption or presumption that it is true, that is there is no Creator for what we see. Intelligent Design is based on the assumption or presumption of an Intelligent Creator for what see. What makes me think that this butterfly wing is precise it the exacting measurement and design that gives the effect of colour. Non-intelligence (or evolution) or random genetics or happenstance will not result in such precision.

@jmbmntis 11 жыл бұрын

10/10 legendary, two months is a very long time to keep this up

@Arhonnys 3 жыл бұрын

wow I saw this information a few months ago when for some reason it became trending and no one explained it like you, I really love your job Dereck 42.0

@X0verXDriveX 11 жыл бұрын

I love your videos, keep them comming!

@SilentRinger 11 жыл бұрын

I just want to say great choice of music, I love Endless Space.

@cutiepiezapzap4369 7 жыл бұрын

I highly enjoyed this surprising episode.

@Eclipsed_Archon 11 жыл бұрын

I never knew that, even seeing as cyan is one of my favorite colors. I was always under the impression that it had a wavelength between blue and green. That's my knowledge for the day, thanks.

@veritasium 11 жыл бұрын

that's annoying! I have no idea but I will try to post on Monday mornings US time so check back early every week.

@killazebra21 10 жыл бұрын

Well done, you put two and two together. You have restored my faith in humanity.

@r00t1337 11 жыл бұрын

Mind=Blown. Just like on most of your other videos.

@mybluemars 10 жыл бұрын

WOW good stuff. Transmitters and basically electron wigglers and green light has a wavelength of about 500 nm, and the little holes are destructive to certain wavelengths of light.

@logandold6894 8 жыл бұрын

love your channel. keep it up :)

@chrispeoples4606 3 жыл бұрын

Dang it, Derek, I needed this video last week when I was teaching thin film interference in my AP Physics 2 class. They would have loved to seen it then....

@baltoen_ 9 жыл бұрын

I love nature. This is why science excites me! It's just awesome!

@sayantikabiswas6996 11 жыл бұрын

Ur channel is mind boggling!! Simply fantaboulous!!!

@koshhe 11 жыл бұрын

Who wouldn't subscribe to your channel?! You are blessed.

@SumireSakura 7 жыл бұрын

Effective Medium Theory is used in Nanotechlogy for calculation of such nanostructure parameters.

@AlexLococo 11 жыл бұрын

That was beautiful.

@jonathanclark3220 11 жыл бұрын

I really like how he actully replys to peoples messsages

@ZachTheInsaneOne 10 жыл бұрын

You are right, and there are even rarer moments when someone accepts the compliment rather than going into an insane argument! This conversation made my day, thank you both! :D

@mumafiedmustangs 11 жыл бұрын

Dam this channel is blowing my mind! Great job!

@Madkevin88 10 жыл бұрын

This is astonishing.

@greysvixen 11 жыл бұрын

Beautiful.

@BlazzingSaber 11 жыл бұрын

Here I am, watching what I've already learned; and it still mesmerizes me.

@veggiet2009 11 жыл бұрын

Seriously awesome stuff right there. now if we make those holes expand and retract with an electrical charge we could create an electronic screen

@ShaggyMummy 9 жыл бұрын

very cool. cyan magenta and yellow are the colors used in most color printers with of course black and the white of the paper

@lurtshiam 11 жыл бұрын

Epic! I'll have to watch that video

@danielbielinski4268 11 жыл бұрын

awesome, just subscribed

@teeboytel 11 жыл бұрын

As a hifi addict, here I can see some really nice parallels between properties of light and sound. This in particular reminds me of acoustic absorbers :D Quite cool!