Light Fantastic: the Science of Colour

The Institute of Physics produces annual Schools and Colleges' lectures. Prof. Pete Vukusic from the School of Physics at Exeter University delivers the 2007 lecture.

[@trentstevens1157]

I was in this lecture when he gave it. It was to around 150 or so inner city 14 yr old schoolkids and their teachers in London in '07. The filming doesn't show it but it was a tough crowd: he handled them exceptionally well. I spoke to him after the lecture and before taking my own students back on the bus to my school in East London: he seemed like a genuinely good guy. I could see he tried to pitch the delivery to suit and try to engage the actual audience in the lecture hall. He succeeded. It's a tricky balancing act, not knowing which students from any of the 8 schools that attended, had covered what material already. We've invited him to school to give six talks so far to different yeargroups since '07; to his credit he's always done this willingly and at no cost to us. His direct input has changed how some of my science staff do their own teaching and this in turn influences our students positively. I'd like to thank him here for all the great outreach work he's done for us over the years.

[@redcoresuperstar]

If this guy was my physics teacher growing up, maybe I wouldn't have hated physics so much. Great lecture!

[@nikolatesla-collaboratelea7061]

You can really feel the inner passion from Pete's lecture. I have learnt a lot about the Science of Light. Very well presented.

[@diegotrazzi]

This guy really knows how to teach and get your attention. Thanks for sharing this :)

[@PHlophe]

Diogo, its passion to the subjet matter.

[@iwayansuandi]

I would've missed this if I didn't know English. Coming from a non English speaking country. Thank you professor and the internet 🙏

[@sankarkumarm1305]

Very good lecture professor. I could not stop the video in the middle. I listen the 65 minutes with full of joy. Thank you professor..

[@yoservs]

Well done, absolutely great passionate lecture, with crystal clear explanation.

[@kelstory9223]

I'd love to be as engaging as he is. What an excellent lecture!!

[@geoffwoade]

this guy is my university lecturer, he's so fucking good

[@wbarlow95]

This guy is such a legend

[@fractalnomics]

13:17 Pit viper, the camera is a thermo-electric IR camera (it exploits the Seebeck effect); my question is does the snake use thermoelectrics? The test would be to see if it can see pray in the dark through glass. Glass is thermolectric, air is not.

[@ycs5567]

Excellent lecture. Inspirational and Informative :)

[@PaulRamen]

Now this is some great talk !

[@manoahmed02]

This answers a lot of things , thank you :)

[@Gabriel11Genuino]

You got that right, with this presentation or called lecture. I learned something very interesting. With this cool topic, I know much stuff to learn about it. Thanks!

[@somdeepkundu2506]

Beautiful lecture,♥️

[@psanderson2123]

Very engaging presenter. There is some pretty amazing science out there.....

[@Nongdamba500]

Please keep up the good work 👏 👏 👏

[@klowjp]

Excelente video

[@maultx]

wonderful

[@musicworth1]

Long time ago but I was impressed

[@ravibotve]

excellent explanation in practical way........... really he give deep insight to see a object thanks

[@harputtepesindebirdervis1699]

one word. perfect

[@UKGraffitiWriter]

thanks

[@johndavies9589]

I do wish people would stop saying that the three types of cones are sensitive to the three primary colours of red, green and blue. The so-called red and green cones are actually sensitive to very similar range of colours, so much so that it would be more accurate to call them lime, green and blue cones.

[@hejalll]

Isn't the color white rather than ultraviolet. The board on which he's pointing on is white, but without light it appears black. But is red no longer red when less light is pointed at it, or is red always red, regardless of how much light is projected onto it?

[@zerozerotwosix]

I wish I had a teacher/lecturer like him. Most of the teachers in my school are sleeping.

[@shiloh.patten]

Is there a program or website where you can type in a specific THz frequency and see the exact wavelength of such specific frequencies?

[@shiloh.patten]

+Technology outdoors Yes, but you're missing the point.

[@shiloh.patten]

+Technology outdoors Each color has it's own frequency range. I've mapped out the matrix of time, sound, and light so that it proves that unless you use the objective color system for the notes, then people with chroesthesia are actually "crazy". How we perceive color may be subjective, but, each color is objectively placed within the RGB system. it's rooted in time (Hz). for example, Green is objectively in the center of the piano, just as Green is objectively in the center of the rainbow. This isn't pseudoscience, anymore. There are 12 hours on the clock, 12 notes in music, and 12 colors in art. All is connected on this vibrational level. This is the end of time as you know it. The end of something marks the beginning of something new. I've figured out the universe. I win. :)

[@RMoribayashi]

You see iridescence every time you look at the back of a CD. The pits are small enough to cause the diffraction of light

[@shiloh.patten]

I was studying the numeric value between colors, and, realized that whole system needs revision. However, I could only find information through Wikipedia on it. They seem to change often. My question is, how are the frequency of colors determined? How can one look at a specific saturation of color, such as 732,274,744,098,816 Hz, to determine exactly which adjective to call this range? I believe this color is indigo, but, I need proof. Who can show me what it looks like? How do we do this? If one could explain the problems science is having to make the precise determination, I can tell you exactly how to fix it.

[@DADDYnick007]

very interesting

[@sidewaysfcs0718]

Erm ....i'm afraid there's a slight over-generalization here. Red is red because either 1. it absorbs green (specifically the complementary green of red) 2. it absorbs all wavelenghts except red in fact, if an object absorbs green, it looks red even if it transmits several other wavelenghts like yellow and blue

[@nastynategreenlotus]

That's fucking awesome.

[@10o.-.-_-.-o010]

There are 3 shapes: a yellow square, a brown circle, and the green rectangle encasing both.

[@xenoidaltu601]

Good lecture. I'd be cool if he explained why mandrills have Structural Coloration in their buttocks as an extra example not associated with micro structures like butterflies do.

[@diegocastro4594]

The frustrating thing here is that Anaconda's vid of Nicky Whatever has more views than this

[@KRT054]

White light is not made up of the 6 or 7 spectral color emissions that we see when white light is diffracted or split by a prism. It is the atomic nature or arrangement of our gaseous atmosphere which is more responsible for the splitting up of white light into its spectral arrangement. The mostly carbon dioxide atmosphere of the planet Mars would show an entirely different arrangement of spectral emission than what we observe within Earth's atmosphere. But, I am sure that you already know this. A gas spectrometer gives rise to this understanding.

[@SJIsles]

Am I the only one who caught the mistake from 16:20 to 16:24? If you are in a dark room, your pupils will be dilated, not shrunk. The reason the doctor needs to put the chemical in the eye is to ensure it remains dilated as the doctor shines light into the eye to look at the retina. What an elementary mistake.

[@zack_120]

Real science 👍👍👍

[@hooktenpushups]

my fav is @8:00

[@HavokTheorem]

1 hour video? Ain't NOBODY got time for dat!

[@artembluntzki7376]

21:30 I thought I was actually color blind for a second hahahaha

[@knud220]

I couldn't stop thinking of Doctor who, while he was explaining all of this...

[@wellspokenrambler]

1:01:50 "look, a butterfly" that is a sunset moth come on otherwise an excellent lecture

[@FarnhamTheDrunk1]

the lecture is full of mistakes actually...

[@gommer6969]

I think paying 4 light is so wrong when we could all use one big light and fiberoptics through magnifacation its been possible and im crying foul get on i people think about it

[@thekaiser4333]

Vukusic ... A Chetnik?

[@somdeepkundu2506]

29:20 woooo

[@JustGotHeated]

Magenta? Cyan?

[@daddiojones238]

I enjoyed 5th grade the first time.... what a fucking hustle. Hey guess what 1 plus 1 is two...wow

[@SimonSeindal]

!!!!!!!!!!!!!!!!!

[@MaximumBan]

1:00:59 Feminism is gushing out of him! Way to go to equality. 👍

[@Tankbustabro]

poor Ben got the hard job

[@synisterfish]

The scientific worldview is only concerned with mechanisms in 'parts to whole' relationships; explaining arbitrarily the inquiry: "How is it...?" If that is good enough for you then 'that's great'... but it's certainly not philosophy.

[@gonnabesoalright]

ok but why would he hOLD THAT SNAKE NO

[@classica1fungus]

2:21 low key britney spears diss.. How dare you sir!!

[@mistyjordan7147]

A beet color is darker.

[@zubystaro]

AM PROUD BEING BLACK COZ AM A MIXTURE OF ALL INGREDIENTS

[@oceanwong4906]

No those are printed colours.

[@Pianoguy32]

double negative !

[@yanikkunitsin1466]

"Colour alternative vision", "colour standard vision", "my eyes aren't perfect, don't get me wrong"... isn't it too much PC and kowtow? It's defective cone cells, not "alternative" cone cells. Jeez...

[@FarnhamTheDrunk1]

8:33 "that clearly is violet" haha wtf this color is SO NOT violet haha...

[@Rando-vu6hl]

E

[@csquared973]

the girl in the front row is really hot!

[@ernststavroblofeld1961]

Yugoslavs… LOL

[@roflmagister5]

This guy speaks like tabloid papers write.

[@StringDeposit]

yes, i cant watch it. he's acting like a busker for my attention.... I'm watching the video . . , I'd love to follow the lecture, stop talking to me like I'm an 8 year old . . . even 10 seconds is too long .

[@ahmednasseh]

You are just extrapolating everything for the sake of evolution propaganda..examples that you used have nothing to do with evolution they can perfectly be explained in a more intelligent way. Intelligent design. Poor students! you've just gotten a very tendentious teacher.

[@zfarahx]

You seem to be quite tendentious yourself.

[@landarchconcepts420]

Yes, evolution is a dead dog as modern biology reveals - Darwin was wrong! Shame scientists like this guy have to reiterate the propaganda to developing minds in order to beguile them into the religion of atheism when so many cutting edge scientists in multiple fields from physics, biology, palaeontology to cosmology and chemistry have made it clear - there is zero evidence for macroevolution in any of the fields.

[@csquared973]

the girl in the front row is really hot!