Im not getting anything by selling these... theyre just AWESOME!!!! just search ebay for ''dichroic cube' :-)

Why isn't this video called "Super Freaky Diochric Sexy Cubes?"

For those who aren't colourblind I'd like to share my experience. Grey. Lighter grey. Darker grey. White. Grey. Ooh, finger! I hope this has been enlightening.

Shine on you crazy diamond

I have a feeling that being stoned in thunderfoots house could be a lot of fun.

3:33 "...one finger comes in from the bottom, which is like, super freaky" that's what she said

I was watching this in awe the way your were showing how the light works going through those cubes, so I called my wife over to show her how pretty the light and all that, thinking she'd be impressed. Well... At least I think they're cool and want one.

You have now acquired t h e *D I C H R O I C C U B E*

Would have been cool if you'd talked about thin-films and why these things work. Some absolutely fascinating science behind it.

The old style dentist lamps (200W halogen) use a dichroic reflector to reflect mostly visible wavelengths (combo white) while allowing significant amounts of infrared to pass through (so that the patient isn't slow roasted).

30 Seconds into this video and I'm already looking where to get one for myself! Also as a Lighting Designer for theatre, Light Science is something Ive studied for years and Love and Never heard of these things. Thank you SO MUCH for sharing this!

I thought I just getting a Thunderf00t's Pink Floyd Playlist intro from that thumbnail.

I completely forgot about dichroism. Optics and crystallography really shouldn't blow my mind as much as they do, it's largely geometry at these scales, but they're just endlessly surprising.

We use a lot of these optics in laser show projectors. Specifically dichroic glass for combining the red, green and blue wavelengths into a single beam, and often times polarizing beam splitters for combining two diodes of the same or similar wavelength before sending it to the dichro array to join the output beam. Even having worked directly with this stuff for years it still amazes me.

I like how he has Microsoft Edge, Firefox, Internet Explorer (somehow) and Chrome all pinned to his taskbar.

Your enthusiasm is so infectious! Thank you for being a timely reminder for me! :)

I am working for a manufacturer of projectors. We use dicroic mirrors to combine light from 3 LEDs, send this to a DMD chip and then through a lens. It is so fun to watch these things in action.

My dad worked for NASA as well as the DOD and was part of the optical engineering teams that created the "cold filters" used in many different applications. He gave me many different types of dichroic lenses in all sorts of geometry to play and experiment with. He would give me lenses and different types of lights and I had to write up my findings. I felt like a real scientist and nothing could have made me happier.

You should seriously upload more frequently mate. Your vids are awesome, keep up the good work.

Just now saw this video from you and it has inspired my creative side! My mother and brother both have birthdays coming in a few months so I'm going to get a few of these nifty little cubes and put them on a rotating pedestal with an LED light behind it so that it'll slowly rotate through the colors. I think it'll make a nice little (mostly) homemade light that is a lot more interesting than just a basic color changing desk decoration.

These are great for combining lasers, I plan on using one to make an RGB laser. Idk if this was mentioned I didn't watch the vid yet, but it's actually two different dichroic mirrors glued together, one reflects blue, one reflects red, but green passes both, explaining the green effect. And when you rotate it most of the light goes through the glass hence white light. They are also used to combine infrared and red lasers in cd/dvd combo players. Again I didn't watch the vid yet I might be repeating stuff.

Thunderf00t, love your channel. I learn so much about science by watching. Thanks.

I just bought a couple of these for a Christmas present, I'm so excited!! Thank you for making this video

Always look forward to the nice bit of reason and knowledge thanks Mr thunderfoot.

Thunder foot thank u so much for showing me something that's so awsome but that iv been overlooking for years I now know what I want for Christmas thanks for making the everyday amazing

Well thunderfoot you have given me the best holiday gift idea! Kids are gonna have a blast AND be wondering what's going on!! Cool and learninfull!!

man you have been touching on subjects that relate to my own research for my 3D printer, and the material science behind it, as well as the recycling/refining unit and some of the energy research to power it all, lol.

Thank You Thunderfoot...often the 'simple' things that mean so much . Cheers

I love this video because it's just honest. Thunderf00t found a really cool thing and shared it with us.

When I was a kid I took things open, and i've found one of these cubes (very small) in a cd player. Thanks for letting me know what this is Thunderf00t!

thunderf00t, thanks so much for not spoon feeding me on exactly how they work, I am off now to find out for myself :)) these things are incredible!

love your enthusiasm.

Thanks Phil. I was struggling to think of something to buy my 85 year old retired physicist dad for Xmas. I think he must be bored with just getting a bottle of wine every year. He will love one of these. The funny thing is, my mum is not exactly scientifically literate, so my dad and I will probably spend much of Xmas day afternoon trying to explain to her how it works. Happy Xmas.

Very cool, and what a great use to put them to in the projectors.

Your passion for science is infectious

This is awesome on so many levels. I might get myself a few of these.

Dang I love your channel @thunderf00t!

I love these things! I gave them as stocking stuffers last X-Mass.

Adding this to my wish list! Thank you VERY MUCH!

I used to have one of those cubes when I was a kid. Good fun with light, educational.

I've a few of these, great things to play with. My big one sits on a "tensegrity table" beside my solar radiometer. Fun way to occupy the mind when at a loose end.

love your passion while talking bout it..

I need this for Christmas! great vid!!

I'm getting one of these soon for a projector I'm building, this was super helpful

Hey Thunderf00t, you've given me a great idea for a potentially amazing disco "ball". I can't wait to start designing it. But I have to work in the morning.

"Now go home and get your fuckin' dichroic cube!" -- Frank Vincent, Goodfellas, 1990

Thoroughly love your videos. Purchased

Might pick some up - Sounds like a low-budget filmmaker's dream come true.

I saw no ads.

I love your videos. Rich content!

You are having too much fun with these thunderfoot

Buying them now, thank you for the tip. Ebay lists some as hot items, China must thank you for the shout out ;)

Thank you for showing this I ordered one last night.

I just ordered 4 of these. dang i bet the seller of these cubes are happy about this video! even if only 1% of people bought some after watching thats a 1000 extra sales that they probably wouldnt have had otherwise.

Double like for showing us this, i had to get some for myself, these things are awesome

Thank you for the Christmas present idea

Mind blown!, thank you Mr. fOOt.

They are pretty fun. We have been working a little bit on using a similar optical construction to build a thermal imaging camera in the lab. By splitting the the beams and doing correlation you can actually derive the long wave length parts of a picture with one of these and a standard RGB sensor (if you are interested you can look up Horton, Mitchel Dewayne, "A Novel Technique for CTIS Image-Reconstruction. "). However it is currently a very long computation to do, so it isn't really practical for a real-time video camera yet. Since you have done a lot of great thermal imaging videos I would just let you know the true awesomeness of what is possible with optics these days. You seem like you would appreciate it.

Nice video, simple yet cool. Like it.

The genius part has to be in figuring out how to manufacture them. A single beam splitter is relatively straightforward, but building two perpendicular to each other... That's the kind of thing that would make engineers cry in despair.

Thanks dawg, these are pretty cool. They'll be good presents for my lil broskies

Thanks for the christmas suggestions

A mobile hanging in a window made of these would be pretty awesome. Attach little vanes to the bottom of them to catch little air currents to make them spin and twirl around.

as soon as you said what they were called i hoped over to ebay and bought one :D

This is fascinating and I love it! Disco lab!

Went straight to eBay, top bloke.

I have to get a couple of these!

More videos like this! I love scientific curiosities.

Nice, pulled some from a salvaged RPTV one time and must of played with one of these for ages. Had always wondered more about it. Also found a lot of other amazing pieces of ,.. whos knows what, but some were transparent until combined with others and rotated to make blues, reds and greens. Also some ridiculous lenses, multi lenses in one and other lenses that I have no idea what to call, recommend diving into a more modern rear projection TV and pulling some amazing stuff.

So basically prisms interfering with each other. So simple but fun. Thanks

4:14 "they're actually used in something you use on a regular basis, they're used in colour projectors" >tfw you've never used a colour projector before

just looked them up on ebay - they have gone up in price! - thank you for sharing

This is another one that Tim from the Grand Illusions channel would love.

I would be very interested to see what a laser would do with those

I laughed like a child, this is awesome

What I found neat was that the beams of light coming out of the cube rotated 180 degrees for every 90 degrees that the cube itself was turned.

That is neat as I like interesting things which illustrate scientific principals

I was waiting for you to put 2 in line.

Funny that you should release this video now, I just recently repaired an Epson 3 LCD projector model EX7210.

such a simple concept but very usefull

My cube has arrived. Cant stop looking at it. People at work think im odd. My little girl is going to love it! (She better had anyway)

That was really cool! Thanks.

Aslo, these are used in 3-CCD colour video cameras.These cameras use three monochrome sensors and by spiltting the light with a dichroic cross cube can use one sensor for each colour.

waiting for another BUSTED crowdfunder

I love your channel

TIL Thunderf00t is colorblind

The cyan color mid rotation is great

For people not afraid to be seen dumpster diving: many projection TV contain a few dichroic optic. The shape to look for is a large flat screen and the back cover slanted about 60 degrees (0 degrees being horizontal, 90 degrees the vertical line of the front), There is two models: Model with 3 micro mirror array: The white light from the arc lamp is separated into 3 colors using many dichroic optic The image is formed on each mirror array A cube prism combine the 3 images for projection Model with 1 micro mirror array: The white light from the arc lamp goes thru a color rotating wheel The mirror array produce each image synchronized with the color wheel The image is projected as is Brief, there is no cool dichroic optic with the model that use a rotating color wheel. Beside the optic, I keep the arc lamp, the inverter that drive the lamp and the 400 volt power supply. The lamp is 100 watts, 60 hz operating at about 100 volt when warm. The light intensity is high enough to burn the skin at a distance of 3 feet. You can replace the incandescent bulb in older projector... Create a light beam scanning the sky like in some circus/amusement park or large sports events, .... The inverted just need the DC power input from 320 volt to 400 volt... no need to be regulated ; just a diode bridge and capaitor would work and it need the turn on command from 3 volt to 12 volt applied on two of the pin on the small connector ; it is 3 opto-isolator... no danger to experiment until you find the correct 2 pin.

You broke the cube. Cool vid

That's quite a treasure there in that Dichroic Cube!

Serious post here. IMHO, it's time for merchandise. Thunderf00t lab coats, prisms, dichroic cubes, spectroscopes... Lots of stuff for kids to do. I trust your judgement over mine or any general supplier whom I don't know. Ok, I don't *know* you but I reckon that you are as you appear, and that is mostly a fantastic educator. My 10 year-old grandson has just been made "science ambassador" for his SEN class. If other kids are having trouble, he's to help! We are SO proud, especially given his own... quirks. That'll do. He would love stuff from a web celeb 😁. My biochemist son's in charge of buying science pressies for his niece and nephews, and anyone else who would like one, but he's not allowed to nick chemicals from the lab! Not after... Oops? LOL just kidding. Or am I? 😎 Back to being serious; I've seen a v interesting chemistry channel on YT which shows, amongst other things, how to grow your own crystals - different videos covering different chemicals/techniques. He says that the chemicals can be found on Amazon or other websites - a) that's not very helpful and b) if it were up to me to get the stuff, I wouldn't trust myself to buy the right - safe! - things. Not to mention he has big pots of the stuff. I think an ounce or so would be a more appropriate size for kids' experiments (under supervision, of course) at home. You could write up instructions maybe, or do a video for each? I'm all for immersing my grandchildren in science from a v young age but it's got to be appropriate - no small, especially strong magnets for the 2 year-old for example. You could give reassurance regarding the right age group. No, I don't want you to stop doing your usual, top-notch videos, but as you yourself said, you wanted to come back to doing science and not cliquey sceptical stuff, and whereas I doubt you'll stop being sceptical (good!), doing it on your own terms and in your own time is by far the better choice IMHO. I'm not sorry (even though I shared your opinions virtually all the way), I get more fun watching you do science, engineering, and taking idiotic "inventions" apart. But it couldn't take *too* long to get some glowing blue balls to sell, could it? 😉 It could help fund your videos, too. If you want to look into selling t-shirts, hoodies, maybe even lab coats 😇 there is a company which allows you to give a cut-off date for orders, and if you don't reach the desired number for the most cost-effective run, you can stop it before they start printing (obviously, no money from punters until the items are ready). I got an amazing t-shirt through a charity recently which had been mouth-painted by Henry Fraser (I follow him on Twitter. It has a beautiful tiger head on its front and everyone who sees it is jealous! And yes, it's all based on the painting he did only using his mouth to hold the brush!). It is good quality and a reasonable price (about £15 IIRC - or not far off), sold in aid of charity. Maybe they have a more commercial... Was going to say "arm", but I'll leave it there... Please don't dismiss this out of hand! I'd be prepared to proofread your web pages for it. I've volunteered to proof for charity fundraising, an online shop, mid-Atlantic sci-fi (we wanted it understood by all English speakers!) a couple of dissertations and currently a biochemical thesis and a medical diss next summer. I have 2 BAs from the OU covering a wide range of subjects, inc some science, but mostly linguistics and the technical side of music (I had to proof a handwritten score by Handel for half my own diss! Bloody awful handwriting!). Also have recently joined Distributed Proofreaders to help get out of copyright works online. So I have a few decades of practice at doing it and offer my services free of charge should you choose to go ahead with it. I'm stuck at home more often than not, so I usually have a lot of time. As an aside, I could go over your videos before you upload if you want? Ann other pear off I's rare lea Hertz, moor off ten 'it yelps ;-) Sorry for dumping this on you, especially just before Xmas, but I honestly think it would be popular with your loyal followers and could help keep you online and us on our scientific toes! I'm sure that you have other followers who have a ton of experience in setting up businesses online and maybe an accountant to help out - *all volunteers*! Anyone else agree? If you really don't want to go there, and this post becomes a nuisance, say so. I'll pop back in a couple of days and take it down if you want, or you could do it yourself. No offence taken on my part if you do. If you want me to go over anything, let me know on this video your preferred way of how to contact you.

cool cubes bro

They look like 4 prisms bonded together!

A perfect gift for my nephew. I'll just tell him that this is the "cosmic cube" from the Avengers movies LOL....

I have a Red Green and Blue bulb in a 3 light fixture. I noticed that Green does similar things in the shadows around the room. The other colors split the other two colors but the room out of areas of shadow is white. Green acts differently depending which fixture it is in.

You have several Motherboxes. Steppenwolf will turn up with his army of Parademons and try to claim them.

Saruman! He who breaks a thing to find out what it is has left the path of wisdom! (Seriously though I just bought one :)

You should create more stuff like this. Your busted videos are good as well (but a little bit too long most of the time ;-) ) but these videos are even better.

You are having way too much fun here. LOL

How is the colour coming out of it if its pure glass? Magic?