So let me start off with, this is brilliant and the results are amazing and you're a fricken genius. I dunno if you ever saw the video on my channel where I'd talked about trying to do exactly this. I even bought literally the exact same holograms from the same ebay supplier. But where I failed was removing the backing layer. I managed once or twice by epoxying the back of the hologram to give me something to grab and physically tear the layers apart but only ever got it to work with an "amorphous" hologram, never the images. I'm stunned it was as easy as soaking it in hydroxide and I'm kicking myself for not thinking of that. I just assumed (apparently incorrectly) that it was impossible so was going to go the hard way of making my own holograms just to have the exposed surface so I could then plate it and make my metal stamp, but now I see there's no point. This is way easier. And of course you took the concept much further than I'd ever have imagined and made the metal stamps which I'm stunned work so well. I still have all the stuff so I'm 100% going to have to try this.
Wow! I must have missed that part. I remember your gecko tape videos -- was that where you mentioned it? I'd be stoked to see your video on making original holograms too. I think a lot has changed since the HeNe sandbox optical table days in the 1990's. BTW, the neural net interface chip is coming along (well, actually, I took a little break from it, but am ready to proceed :) Let me know your sched regarding this.
@@AppliedScience It was in the magnetic levitation table video. I was making that table because I was working up to the holograms and I talk about my attempts at chocolate holograms at the beginning. I'd been putting off the second part of that video where I actually make the holograms because I wanted to buy a nice piece of optical breadboard to use as the actual table base both for the weight but also for the nice mounting holes. I think I'm gonna try your method with one of the really big holograms I have left from that project. I got a rose that blooms as you tilt the hologram, it's stunning. I want to make it out of chocolate to put on top of a cake. I think it's about time I get around to the hologram stuff, just finishing up 3 bio projects I've been working on, then will get back to the physics stuff. I'll dm you about the chips!
@@thethoughtemporium You might be able to skip making a silicone mold to get a large hologram. If the outside edges of the chocolate are freezing first and causing the center to rise slightly while it's still pliable that would leave a pattern on the edges but the center would melt smooth again, which is what seems to be happening. You may be able to freeze it before larger distortion has a chance to happen by, say, dumping liquid nitrogen on top, (that would also press the center down into the pattern as an added bonus). The thinner the chocolate the faster the bottom will freeze and the less likely it will curl or distort. (Once I get my cryocooler liquid cooled I'll try this myself to validate the process. Oh also, could one directly melt something like wood's metal into the pattern to bypass the nickel plating step for making a master as well?)
8:20 A huge +1 for a video on chocolate tempering and crystal structure! I've seen too many hand-waving explanations, but an actual physical demo would surely be fascinating.
Yeah! Looking at crystal structures, tempering, using microscopes; for a food item sounds like a great idea. In other words: metallurgy, but with chocolate. That sounds like the best of multiple worlds. I wonder if Ben will make chocolate alloys at some point...
For those out there thinking about doing this: careful with the type of silicone you use for the mould! Some are not safe if you are planning to create moulds for food or diy masks. The one used in the video is a platinum catalyst which is the correct one to use for this.
I found it much more difficult to deal with the chocolate than to deal with the holograms or silicone molding. No joke! It's really touchy stuff -- one drop of water, or one degree over temperature ruins the whole thing.
I've been interested in holograms for a long time (since I was a kid when I made my first one). I'm surprised that I haven't done a video about it yet, so it will be a doozy with lots of interesting stuff put together.
@@AppliedScience There used to be an amazingly detailed, 45 minute video featuring Swann Rack describing how he made his own DCG glass plates at home on TH-cam. I think it was on Daily Tips channel but it's sadly gone. A transcript of the video lives on on this site: www.allreadable.com/2428KxGU You can see some of Swann Rack's work on his own channel: th-cam.com/video/OQlbsenykyI/w-d-xo.html I was fortunate to make some holograms with Inaki Beguiristain who is a modern master of this obscure art and science. Your chocolate holography is great, btw. I like the way you show how much perseverance it takes!
I remember in metallurgy/metallography class talking about how tricky chocolate would be to analyze using the standard polishing method since it's so soft and melts easily. Would ve interested to see how you might tackle this challenge!
Yes, exactly. Another difficulty is finding a solution to differentially etch the chocolate to show the crystal boundaries. I poked around with it a while ago, but never got anywhere. It seems like it should be possible though.
I used to work for a hologram manf in the mid 90s as an electroformer. The man in the hologram of that book was one of the sales man and I worked with some of the peopel who made the holograms that are on the visa and mastercards. As an electroformer I would make masters of the hologram and "shims" as they called them for printing holographic labels, baseball cards, the stickers on the motorola startac batteries... This process is called electroforming. We would receive the hologram made in photoresist on a piece of glass. It was explained to me that the laser would etch an interference pattern into the photoresist and the apsect ratio of the grove is what created the holographic image. We would placed in an acrylic jigand hold it in place with tape on the edges. We would paint conductive paint over the tape and on the jig to an electric screw terminal.We would coat the hologram and jig in the silver solution except we sprayed it on. We would put this in a tank of nickel sulfamate solution as a cathode in a soft nickle plating process. We used soft nickle plating which gave a dull gray finish on the back of the shims instead of a hard shinny nickle platting that is normally used in nickle plating things. I believe it had to do with tensile strength. I don't recall exactly. We would plate it for many hours to get a few hundred microns thick. We would start a a low current and as more nickle built up on the holgram we could increase the current since is was now a bigger conductor which would speed up the process of plating the "silver master" I think we called it. When it was thick enough we would peel the nickle plate off the hologram and have a negative which I think was also refereed to as a negative mother since it had a negative image. We would cleanup the "mother" and smooth any sharp spots on the face of the nickle plate. We would spray the silver master /negative mother with I think it was potassium dichromate. These chemicals were all sprayed in a ventilated hood while we wore respirators. This chemical would allow us to plate the face of the negative master and peel new layer of nickle off to get what I think they called a positive father. We did this many times depending on the number of nickle tanks that were free to make positive copies of them. We did this process for creating negatives and positives from the negatives . It was very critical in this plating process not to get contaminates especially greasy ones on holographic images on the plates. handling the plates just on the edges with bare hands could ruin them due to the grease from our hands to run off and across the plat. Even if I handled something in the spray booth with my bare hands and then sprayed water onto the plate, would cause the over-spray to bounce off the object I handled and take the grease with it and to the plate and ruin it. This is why spraying a release on your hologram was a bad idea. We used the cleaner "simple green" to try to remedy problems . It worked best but didn't always work The final shims I don't recall if they were positive or negative but they needed to be exactly 100 microns thick and the thickness over the whole shim had to be within a certain tolerance that I cant remember, but we had to use strategies of moving the nickle anodes around to make sure it plated evenly across the surface.They would take the shims and form them into a cylinder, I was not part of this process so I don't know it well. They would take a solid metal "roller" that was part of the machine that printed the holograms and submerge it in liquid nitrogen to shrink it and slide the cylinder made of shims over the roller to make a fiction fit. I think they ran a UV setting plastic film trough the machine which would set into the holographic shims to be the holographic product ..label...sticker... I thought you would like an explanation of the process from someone who has done it before. One suggestion I would like to make is that I heard if you put butter in chocolate is hardens shiny, maybe you will get better results
I would love to see a video on chocolate tempering! A lot of the food-focused tempering resources online rely on hand-wavy black magic explanations of what's happening when tempering or why certain steps work. I'm particularly interested in what's going on in tempered but still liquid chocolate: what fraction of the cocoa butter is crystallized, how big are the crystals, what's the mix of different crystal types, etc.
@@adamtucker7736 Do you have a source to recommend? I've tried both the Serious Eats and ChefSteps methods and find them to be pretty fiddly. Massaging the bag doesn't seem like enough agitation, and the ChefSteps method requires you to get in and out of the bag several times to seed.
Wow, amazing! Love the video as always and will have to try your metal process! I found an effective way to remove chocolate without affecting the surface texture was to use a layered mold (laser cut acrylic) where the diffraction grating/bottom and the tops would be pulled away from both sides, then you can easily pop it out from the non-textured side and easy to clean, as well as quickly laser cut diff designs for the middle layer (or adjust the thickness with multiple layers). Model/output seen here: twitter.com/samykamkar/status/1259720942470656000
Ah! what a cool topic! When I first saw Tech Ingredients video on the subject, I wondered if you had any ideas on how to improve the process. I also found The Thought Emporiums videos on silicone molding diffraction gratings to make gecko tape equally interesting (th-cam.com/video/vpTX32KdVBQ/w-d-xo.html). It would be amazing to see some sort of holographic collaboration sometime!
Now that's my kind of science: snappy, obscure yet flashy, but most importantly delicious! Would love to hear more on tempeing, whether it's chocolate or metal or conductive metalized chocolate!
You just gave me an idea! Gold-plated holographic chocolate! It doesnt get much more flashy than that! I wonder if one could sputter gold onto chocolate, and maybe even do so while preserving an existing hologram.
I've been trying to crack a good way to make holographic edible designs for a minute, and although I don't know if I'll be able to pull this one off, it's so super helpful to understand what makes it happen!
Because it's holographic, you should really consider sending a message to Simply Nailogical. She would definitely be interested and give you a huge shout-out!
For an additional, even easier and very effective method of tempering chocolate, look up "cocoa butter silk"! With the silk, you only have to melt the chocolate, let it cool to a certain temperature, add the silk, mix until incorporated and it's tempered! I do this regularly with my home chocolate batches.
Mr Lawson my first thought was that it couldn’t play back, that the tensile strength of chocolate is too low, it would fly apart as soon as it spun up in the CD player. Doing some math, CDs spin at 500rpm when reading the inner track, 12cm diameter CD has a velocity of 3m/s (6.7mph) along the outside edge, for a centripetal acceleration of 75m/s^2, more than 7.6 times the pull of earth’s gravity. Intuition tells me that chocolate cannot possibly hold up to that stress, but a quick web search shows some research into tensile strength of dark chocolate and values seem to be around 1MPa, so perhaps it could work...
@@jpe1 Would the laser ruin the track? I don't know how much heat would be applied through it. I'd expect they'd go for as little as possible, but might still be too much. Maybe chocolate is the secret to a one time read disk. Easily disposed of in tight situations (just eat it lol). Secret agent seen eating pounds of chocolate in back alley 😆
If you do the chocolate tempering video, I wonder if Alex French Guy Cooking would be interested in a collab--he did a good video on chocolate tempering a while back.
The silver plating reaction is called the tollens test, and was used to show the presence of aldehydes in solution. In this case, the aldehydes are the linear form on glucose that are formed when sugar is dissolved in water :)
Add holograms on chocolate to the huge list of things I would have never thought of. But hey, at least now I understand how holograms work.. At least superficially. No doubt it'll come in handy. Cool experiments as usual, Ben!
Reminds me of this old thing: th-cam.com/video/XUy8lELWhJg/w-d-xo.html And now, small CNCs are cheap enough for your average hobbyist. There's a thought.
@@JeffShepherdphotos Yes, it is a similar and related mechanism that explains the colour in butterflies' wings and in hummingbirds, but it is not quite due to refraction. It is rather reflection, and selective absorption. In this case, we have a diffraction grating that has a microscopic pattern and creates an image. In the case of butterfly wings, you have a series of layers (like scales) one on top of another. Because these layers are so thin, they are of about the same size as light itself, and this makes it so that if the size of the light just matches up with the size of the layers, the light gets amplified and reflected. If they don't match up exactly, the light wave gets absorbed by the material. So, the layers are the size of about blue light, so this light gets reflected. This is the principle of an area of study called "photonic crystals".
😮😮😮😮😮Holy shit! Where can I get the P-38 bar? I’d have one of those sent to my dad in GA. That’s impressive and I saw Thought Emporium’s video on how to make holograms and how you make transferable ones.
I love how The Thought Emporium was inspired by you to make gekko tape and in turn he inspired you to make Holo-chocolate and added a bonus in the video. You guys are great. Edit: Tech Ingredients needs credit for initially popularizing the idea.
30°C Is deffinitly way too hot let alone 32°C. Well i guess it also depends on where you live, but still 30°C seems WAY too hot for ''normal'' room temperature. Where I live normal room temperature is about 20 - 24°C
I love how these videos go from zero to a hundred so quickly. One second you're talking about making a silicone mold to pour chocolate into then next thing you know you're analyzing custom made electroplated dies with an electron microscope, all in your garage. Just awesome man!
Thats just awesowe! At first i thought that you will print holograms directly on chocolate like on any other surface which would be pretty complicated. But when i saw the method you use, i thought that this simplicity is just ingenious!
Mars Inc.: Yea we actually invented this quite some time ago, we have no interest in it. Mutes phone... Mars Inc.: Get somebody on this right away! I want a holographic logo on every candy bar we make!
I feel like you could totally take a shortcut on the metalizing of the mold by doing an aluminum vapor deposited coating instead, which would give you better control and consistency, and TBH, would probably cost less than the nickel plating in terms of initial set up, since aluminum sputtering doesn't require crazy high vacuum to do. EDIT: I'm becoming entirely too used to what Ben means when he says it's expensive, it was under $300 for the nickel plating kit, and you might actually have a hard time doing a vacuum chamber capable of doing aluminum depositing under that price unless you won the surplus jackpot.
It makes me cheer every time I see an Applied Science video because the topics are so fricken intriguing! I can never guess the next video but it's always interesting!
I could have sworn I'd seen this video already [EDIT: Oohhh right, I'm thinking of the Tech Ingredients video -- nvm] [EDIT2: Cool -- this is a nice iteration on the ideas presented in that video. Do you have any clue as to how feasible it would be for someone to imprint their own designs? Do you need lasers or something to make these?]
I must try to draw some holographic pattern with my laser marker. It is a pulsed fiber laser of great precision but I don't know if i can get small enough dots
Definitely. The real trick is making the "activator" stannous chloride stick to the surface. I'd suggest adding a pinch of sodium lauryl sulfate, but depending on the specific plastic, there may be better options. The link in the description has the best info I could find on the silver process, but nothing detailed about preparing plastic.
The only channel on TH-cam that starts by telling you the results and showing you the end within the first ten seconds. *Even the channels we love like practical engineering and especially tech ingredients do scummy sleazy clickbait intros and titles and thumbnails* . Ben is the only one who refuses and makes you stick around by sheer awe and respect ❤️
I liked the mid 90s styled holograms. Nothing says 1993 like a 3D globe hologram over a 2D grid. Reminds me of a visit to the Science Museum in London as a kid. It was all space, lasers and holograms 😀
How on earth do you get to think of all that awesome stuff? Better vantablack, camera lenses, now holograms (?) on chocolate (???) I am speechless after each and every video, great work!
This is so awesome! My sister recently sent me a Twitter pic of someone that'd done this and it blew her mind. I'd seen it before and told her how it was done, but so cool to see you do this so soon after that! I would LOVE to see the different crystal states of chocolate if possible. I think it's fascinating.
As far as I know, You pretty much can't see the crystal phases of cocoa butter in a microscope (maybe cryo-TEM ?). This is typically done using X-ray diffraction. Of course, chocolate microscopy is very useful for lot of other things. For examples: doi.org/10.1016/j.jfoodeng.2010.09.023
You probably thought of or tried this already, but did you consider gluing the hologram face-down to a more flexible substrate? That way the silicone mold might be unnecessary. Can't get enough of your videos by the way, super awesome stuff!
You are legitimately a wizard.
LAMINAR FLOW
Now that I have your attention. Hi Destin, I love your videos!!!!!
wusup
Lich next.
So let me start off with, this is brilliant and the results are amazing and you're a fricken genius. I dunno if you ever saw the video on my channel where I'd talked about trying to do exactly this. I even bought literally the exact same holograms from the same ebay supplier. But where I failed was removing the backing layer. I managed once or twice by epoxying the back of the hologram to give me something to grab and physically tear the layers apart but only ever got it to work with an "amorphous" hologram, never the images. I'm stunned it was as easy as soaking it in hydroxide and I'm kicking myself for not thinking of that. I just assumed (apparently incorrectly) that it was impossible so was going to go the hard way of making my own holograms just to have the exposed surface so I could then plate it and make my metal stamp, but now I see there's no point. This is way easier. And of course you took the concept much further than I'd ever have imagined and made the metal stamps which I'm stunned work so well. I still have all the stuff so I'm 100% going to have to try this.
Wow! I must have missed that part. I remember your gecko tape videos -- was that where you mentioned it? I'd be stoked to see your video on making original holograms too. I think a lot has changed since the HeNe sandbox optical table days in the 1990's. BTW, the neural net interface chip is coming along (well, actually, I took a little break from it, but am ready to proceed :) Let me know your sched regarding this.
@@AppliedScience It was in the magnetic levitation table video. I was making that table because I was working up to the holograms and I talk about my attempts at chocolate holograms at the beginning. I'd been putting off the second part of that video where I actually make the holograms because I wanted to buy a nice piece of optical breadboard to use as the actual table base both for the weight but also for the nice mounting holes. I think I'm gonna try your method with one of the really big holograms I have left from that project. I got a rose that blooms as you tilt the hologram, it's stunning. I want to make it out of chocolate to put on top of a cake. I think it's about time I get around to the hologram stuff, just finishing up 3 bio projects I've been working on, then will get back to the physics stuff.
I'll dm you about the chips!
@@AppliedScience Are you ever going to post an update to the geko tape?
Wow my favorite channels conversing!!
@@thethoughtemporium You might be able to skip making a silicone mold to get a large hologram. If the outside edges of the chocolate are freezing first and causing the center to rise slightly while it's still pliable that would leave a pattern on the edges but the center would melt smooth again, which is what seems to be happening. You may be able to freeze it before larger distortion has a chance to happen by, say, dumping liquid nitrogen on top, (that would also press the center down into the pattern as an added bonus). The thinner the chocolate the faster the bottom will freeze and the less likely it will curl or distort. (Once I get my cryocooler liquid cooled I'll try this myself to validate the process. Oh also, could one directly melt something like wood's metal into the pattern to bypass the nickel plating step for making a master as well?)
"...this nickel plating machine I happened to have in my garage..."
Yeah, not like an electron microscope, which everyone has one in their garages
@@atropos91 -- I don't have one. May I borrow yours until this weekend? Please and thank you. :)
his science experiment is like an adventure, where he discovers many things in garage along the way
"I wanted to see what they looked like so I put in my electron microscope..."
You can buy plating kits very easily on eBay.
8:20 A huge +1 for a video on chocolate tempering and crystal structure! I've seen too many hand-waving explanations, but an actual physical demo would surely be fascinating.
👍👍👍
Yeah!
Looking at crystal structures, tempering, using microscopes; for a food item sounds like a great idea. In other words: metallurgy, but with chocolate. That sounds like the best of multiple worlds. I wonder if Ben will make chocolate alloys at some point...
YES YES YES!
+1 for an exploration of chocolate tempering!
i'm craving for this to happen
For those out there thinking about doing this: careful with the type of silicone you use for the mould! Some are not safe if you are planning to create moulds for food or diy masks. The one used in the video is a platinum catalyst which is the correct one to use for this.
Maybe JELLO?
You can use PDMS sylgard 184.
Another very good silicone by SmoothOn that is basically made for this task (e.g. making a box mold): MoldStar
COOL!
No shit
14:52 * Casually uses an electron microscope the same way I'd say I used my toaster *
to be fair he did make it himself so he would be more casual with with than you would with your toaster
Poor Claire, she can't even temper chocolate :
LOL! This thought came up for me too.
I found it much more difficult to deal with the chocolate than to deal with the holograms or silicone molding. No joke! It's really touchy stuff -- one drop of water, or one degree over temperature ruins the whole thing.
@@AppliedScience Oh yeah, working with chocolate is quite the challenge
Let's just get Brad on here and see what kind of "alive" shop organisms he can come up with...
@@AppliedScience To make the tempering easier, you could use a sous-vide cooker. Alex French Guy Cooking did a video on it.
Nobody tell the Nailogicals or Claire fromthebonappetittestkitchen
Or we could tell them and have some QUALITY quarantine content :P
They have to know!!
Collaboration!!!!
Finally chocolate bar makers can prevent cheap counterfeits!
Next up on Applied Science : White Chocolate UV thread.
lol omg :D Next up: Swiss manufactured hologram chocolate...
a little note here: the tempering process is ruined, but the chocolate is still reusable, just restart
"dedicated video on making original holograms" --> aw yiss
I've been interested in holograms for a long time (since I was a kid when I made my first one). I'm surprised that I haven't done a video about it yet, so it will be a doozy with lots of interesting stuff put together.
@@AppliedScience Please?
Pretty please?
@@AppliedScience you mean back when they were -cool- vintage? jokes aside, yes please!
@@AppliedScience There used to be an amazingly detailed, 45 minute video featuring Swann Rack describing how he made his own DCG glass plates at home on TH-cam. I think it was on Daily Tips channel but it's sadly gone.
A transcript of the video lives on on this site: www.allreadable.com/2428KxGU
You can see some of Swann Rack's work on his own channel: th-cam.com/video/OQlbsenykyI/w-d-xo.html
I was fortunate to make some holograms with Inaki Beguiristain who is a modern master of this obscure art and science.
Your chocolate holography is great, btw. I like the way you show how much perseverance it takes!
Kids: "In the future, we will have holograms"
Ebay: "Vintage hologram stickers 10¢"
(>,
You have 1 reply, but I can't see it? 🤔
I remember in metallurgy/metallography class talking about how tricky chocolate would be to analyze using the standard polishing method since it's so soft and melts easily. Would ve interested to see how you might tackle this challenge!
Yes, exactly. Another difficulty is finding a solution to differentially etch the chocolate to show the crystal boundaries. I poked around with it a while ago, but never got anywhere. It seems like it should be possible though.
Luquid nitrogen?
Just to toughen the thing for polishing, sandin paper under it
I used to work for a hologram manf in the mid 90s as an electroformer. The man in the hologram of that book was one of the sales man and I worked with some of the peopel who made the holograms that are on the visa and mastercards. As an electroformer I would make masters of the hologram and "shims" as they called them for printing holographic labels, baseball cards, the stickers on the motorola startac batteries... This process is called electroforming. We would receive the hologram made in photoresist on a piece of glass. It was explained to me that the laser would etch an interference pattern into the photoresist and the apsect ratio of the grove is what created the holographic image. We would placed in an acrylic jigand hold it in place with tape on the edges. We would paint conductive paint over the tape and on the jig to an electric screw terminal.We would coat the hologram and jig in the silver solution except we sprayed it on. We would put this in a tank of nickel sulfamate solution as a cathode in a soft nickle plating process. We used soft nickle plating which gave a dull gray finish on the back of the shims instead of a hard shinny nickle platting that is normally used in nickle plating things. I believe it had to do with tensile strength. I don't recall exactly. We would plate it for many hours to get a few hundred microns thick. We would start a a low current and as more nickle built up on the holgram we could increase the current since is was now a bigger conductor which would speed up the process of plating the "silver master" I think we called it. When it was thick enough we would peel the nickle plate off the hologram and have a negative which I think was also refereed to as a negative mother since it had a negative image. We would cleanup the "mother" and smooth any sharp spots on the face of the nickle plate. We would spray the silver master /negative mother with I think it was potassium dichromate. These chemicals were all sprayed in a ventilated hood while we wore respirators. This chemical would allow us to plate the face of the negative master and peel new layer of nickle off to get what I think they called a positive father. We did this many times depending on the number of nickle tanks that were free to make positive copies of them. We did this process for creating negatives and positives from the negatives . It was very critical in this plating process not to get contaminates especially greasy ones on holographic images on the plates. handling the plates just on the edges with bare hands could ruin them due to the grease from our hands to run off and across the plat. Even if I handled something in the spray booth with my bare hands and then sprayed water onto the plate, would cause the over-spray to bounce off the object I handled and take the grease with it and to the plate and ruin it. This is why spraying a release on your hologram was a bad idea. We used the cleaner "simple green" to try to remedy problems . It worked best but didn't always work The final shims I don't recall if they were positive or negative but they needed to be exactly 100 microns thick and the thickness over the whole shim had to be within a certain tolerance that I cant remember, but we had to use strategies of moving the nickle anodes around to make sure it plated evenly across the surface.They would take the shims and form them into a cylinder, I was not part of this process so I don't know it well. They would take a solid metal "roller" that was part of the machine that printed the holograms and submerge it in liquid nitrogen to shrink it and slide the cylinder made of shims over the roller to make a fiction fit. I think they ran a UV setting plastic film trough the machine which would set into the holographic shims to be the holographic product ..label...sticker... I thought you would like an explanation of the process from someone who has done it before. One suggestion I would like to make is that I heard if you put butter in chocolate is hardens shiny, maybe you will get better results
This is Sufficiently Advanced Technology
A Holo Taco of chocolate! 🌮
Looking forward to a Simply Nailogical video on this.
...and the eatable DVD was born.
This idea died even before the first clogged DVD drive arrived at the local electronic recycling center.
Still watching the video, but I'll be disappointed if he doesn't eat at least 1 hologram :)
Chocolatiers here in Switzerland do that and I always wondered how they do it!
I would love to see a video on chocolate tempering! A lot of the food-focused tempering resources online rely on hand-wavy black magic explanations of what's happening when tempering or why certain steps work.
I'm particularly interested in what's going on in tempered but still liquid chocolate: what fraction of the cocoa butter is crystallized, how big are the crystals, what's the mix of different crystal types, etc.
Tempering chocolate IS black magic. Understanding the science behind it doesn't stop it being magic ;)
I second this! Ben, _please_ do this.
@@DancingRain absolutely
Try Sous Vide as a method to temper chocolate. Easily controlled, just don’t get water in the chocolate
@@adamtucker7736 Do you have a source to recommend? I've tried both the Serious Eats and ChefSteps methods and find them to be pretty fiddly. Massaging the bag doesn't seem like enough agitation, and the ChefSteps method requires you to get in and out of the bag several times to seed.
Wow, amazing! Love the video as always and will have to try your metal process! I found an effective way to remove chocolate without affecting the surface texture was to use a layered mold (laser cut acrylic) where the diffraction grating/bottom and the tops would be pulled away from both sides, then you can easily pop it out from the non-textured side and easy to clean, as well as quickly laser cut diff designs for the middle layer (or adjust the thickness with multiple layers). Model/output seen here: twitter.com/samykamkar/status/1259720942470656000
Ah! what a cool topic! When I first saw Tech Ingredients video on the subject, I wondered if you had any ideas on how to improve the process. I also found The Thought Emporiums videos on silicone molding diffraction gratings to make gecko tape equally interesting (th-cam.com/video/vpTX32KdVBQ/w-d-xo.html). It would be amazing to see some sort of holographic collaboration sometime!
I am pretty sure that our host did the gecko tape molding thing a few years before Thought Emporium. th-cam.com/video/9XQfYKYO380/w-d-xo.html
"this nickel plating machine I happened to have in my garage"
Yep, who does not?
Now that's my kind of science: snappy, obscure yet flashy, but most importantly delicious!
Would love to hear more on tempeing, whether it's chocolate or metal or conductive metalized chocolate!
You just gave me an idea! Gold-plated holographic chocolate! It doesnt get much more flashy than that!
I wonder if one could sputter gold onto chocolate, and maybe even do so while preserving an existing hologram.
This isn't science! This is engineering!!
@@bielanski2493 Engineering and science are not mutually exclusive.
Does this mean we can make chocolate CD and DVDs?
omg. Watch out sor the Swiss special services.
Oh, yes +1 for a chocolate tempering and crystal phases video! That would be incredible!
Chocolate companies should contact this guy. Kids would love these things.
Everyone: Wow, hologram on chocolate? so cool!
Me: but can I eat it?
Dont tell Claire about this....
tempered holographic chocolate. I'd love to see her break down trying. uh, wait, I didn't mean it like that...
I feel like a chaos goblin for sending this video to Simplynailogical, but I regret nothing. This is such a cool technique!
She needs to see this!
This is exactly the kind of thing Cristine needs to see!
I was reading the comments to see if anyone had tagged her yet 😂
Tech Ingredients VS Applied Science Holographic chocolate showdown.
sorta-clear-40, it sorta works.
More Tech ingredients & Applied Science collaboration..
lol, Chocolate tempering. (looks at Claire from BA)
Thanks for another fantastic video!
I've been trying to crack a good way to make holographic edible designs for a minute, and although I don't know if I'll be able to pull this one off, it's so super helpful to understand what makes it happen!
Because it's holographic, you should really consider sending a message to Simply Nailogical. She would definitely be interested and give you a huge shout-out!
For an additional, even easier and very effective method of tempering chocolate, look up "cocoa butter silk"! With the silk, you only have to melt the chocolate, let it cool to a certain temperature, add the silk, mix until incorporated and it's tempered! I do this regularly with my home chocolate batches.
I couldn't help but notice: the process of going from a plastic master to a nickel mold is a lot like compact disc manufacturing in reverse.
it is called electroforming. I believe they do that for vinyl records too
A chocolate CD?
Mr Lawson my first thought was that it couldn’t play back, that the tensile strength of chocolate is too low, it would fly apart as soon as it spun up in the CD player. Doing some math, CDs spin at 500rpm when reading the inner track, 12cm diameter CD has a velocity of 3m/s (6.7mph) along the outside edge, for a centripetal acceleration of 75m/s^2, more than 7.6 times the pull of earth’s gravity. Intuition tells me that chocolate cannot possibly hold up to that stress, but a quick web search shows some research into tensile strength of dark chocolate and values seem to be around 1MPa, so perhaps it could work...
@@jpe1 Would the laser ruin the track? I don't know how much heat would be applied through it. I'd expect they'd go for as little as possible, but might still be too much. Maybe chocolate is the secret to a one time read disk. Easily disposed of in tight situations (just eat it lol). Secret agent seen eating pounds of chocolate in back alley 😆
@@jpe1 it sort of works and was fun to test out, but it wasn't perfect and was ruined after one play
Melting hologram chocolate.
Good for weight loss :-)
If you do the chocolate tempering video, I wonder if Alex French Guy Cooking would be interested in a collab--he did a good video on chocolate tempering a while back.
You could use a sous vide machine to make the chocolate tempering very easy.
Sweet video! :) I see quarantine is good for Applied Science video frequency... nice job as always!
"sorta clear". Imean, it's accurate
Ahahah
Cadbury: *WRITE THAT DOWN WRITE THAT DOWN*
The silver plating reaction is called the tollens test, and was used to show the presence of aldehydes in solution. In this case, the aldehydes are the linear form on glucose that are formed when sugar is dissolved in water :)
Add holograms on chocolate to the huge list of things I would have never thought of. But hey, at least now I understand how holograms work.. At least superficially. No doubt it'll come in handy. Cool experiments as usual, Ben!
PLEASE do the chocolate tempering crystal video - that sounds fascinating
Reminds me of this old thing: th-cam.com/video/XUy8lELWhJg/w-d-xo.html
And now, small CNCs are cheap enough for your average hobbyist. There's a thought.
Yes!
👍🤣 How about a collaboration with "This Old Tony" to make a diffraction grating ruling engine, for other kinds of candy....? 🤔
sounds like the perfect addition to edibles
Isn't this similar to how blue butterflies produce their blue "color" ?
I think so!
Its all down to the refraction of light.
@@JeffShepherdphotos Yes, it is a similar and related mechanism that explains the colour in butterflies' wings and in hummingbirds, but it is not quite due to refraction. It is rather reflection, and selective absorption. In this case, we have a diffraction grating that has a microscopic pattern and creates an image. In the case of butterfly wings, you have a series of layers (like scales) one on top of another. Because these layers are so thin, they are of about the same size as light itself, and this makes it so that if the size of the light just matches up with the size of the layers, the light gets amplified and reflected. If they don't match up exactly, the light wave gets absorbed by the material. So, the layers are the size of about blue light, so this light gets reflected. This is the principle of an area of study called "photonic crystals".
@@guillermoalejandroperezlob5208 Yes, very true. A bit like like a DVD
😮😮😮😮😮Holy shit!
Where can I get the P-38 bar? I’d have one of those sent to my dad in GA.
That’s impressive and I saw Thought Emporium’s video on how to make holograms and how you make transferable ones.
Tempering Chocolate? No one tell Claire!
What is this? A crossover episode? 😂
I've seen people using the defraction grading on the bottom layer of a 3D print. I wonder if this could be applied to 3D prints.
I love how The Thought Emporium was inspired by you to make gekko tape and in turn he inspired you to make Holo-chocolate and added a bonus in the video. You guys are great.
Edit: Tech Ingredients needs credit for initially popularizing the idea.
Has sciences gone too far?
I would very much like to see the science on tempered chocolate.
30°C Is deffinitly way too hot let alone 32°C. Well i guess it also depends on where you live, but still 30°C seems WAY too hot for ''normal'' room temperature. Where I live normal room temperature is about 20 - 24°C
First holographic images I will make is of more chocolate bars. 🤗
"maybe I will do a video about chocolate tempering..." OOOHHHH YEEESSS!!! PLEASE DOOOO!!!
I love how these videos go from zero to a hundred so quickly. One second you're talking about making a silicone mold to pour chocolate into then next thing you know you're analyzing custom made electroplated dies with an electron microscope, all in your garage. Just awesome man!
16:32 "You can totally get started with very few tools on your own"
Used an entire lab that seems to have cost 100 million dollars! x|
I would love to see a chocolate tempering.
Check out the videos for Hercules Candy, they have some on chocolate tempering.
Thats just awesowe! At first i thought that you will print holograms directly on chocolate like on any other surface which would be pretty complicated. But when i saw the method you use, i thought that this simplicity is just ingenious!
Mars Inc.: Yea we actually invented this quite some time ago, we have no interest in it.
Mutes phone...
Mars Inc.: Get somebody on this right away! I want a holographic logo on every candy bar we make!
it woulnt work tough, any minor melting would ruin it
@@khhnator good point... Well, it could be a quality guarantee at the sametime... maybe for those more higher priced chocolates lol..
but any chocolate covered ice cream would work :D
Egg whites would probably be a good substrate for a holographic Image. The white part of a hard boiled egg is almost like a silicone.
Now I want an electron microscope
Labs give them away for free, if you pick it up.
Doesnt everyone?
I feel like you could totally take a shortcut on the metalizing of the mold by doing an aluminum vapor deposited coating instead, which would give you better control and consistency, and TBH, would probably cost less than the nickel plating in terms of initial set up, since aluminum sputtering doesn't require crazy high vacuum to do.
EDIT: I'm becoming entirely too used to what Ben means when he says it's expensive, it was under $300 for the nickel plating kit, and you might actually have a hard time doing a vacuum chamber capable of doing aluminum depositing under that price unless you won the surplus jackpot.
It makes me cheer every time I see an Applied Science video because the topics are so fricken intriguing!
I can never guess the next video but it's always interesting!
I love the shoutout to Tech Ingredients too
Now, onto computationally etching the holograms onto a metal master? ;)
"so I happened to have this nickel plating kit in my garage" Life goals
or "I just fired up my favourite particle accelerator..." :-)
His buddy's the architect of the LHC
I wonder if the 10 micron grooves you're seeing are a product of manufacture, like perhaps a lathe used to surface the blank that make the stickers
Do I see a NileRed beaker there?
The plastic holo stamp. The silver nitrate trick. Such cool.
I could have sworn I'd seen this video already
[EDIT: Oohhh right, I'm thinking of the Tech Ingredients video -- nvm]
[EDIT2: Cool -- this is a nice iteration on the ideas presented in that video. Do you have any clue as to how feasible it would be for someone to imprint their own designs? Do you need lasers or something to make these?]
Your nephews most love you.
Also, looking forward to a video on chocolate crystaline structure.
I must try to draw some holographic pattern with my laser marker. It is a pulsed fiber laser of great precision but I don't know if i can get small enough dots
That was super neat & looks like something pretty fun to try out. Heck, looks relatively safe enough to let older kids try out.
Could you use that silver coating technique on 3d printed parts?
Definitely. The real trick is making the "activator" stannous chloride stick to the surface. I'd suggest adding a pinch of sodium lauryl sulfate, but depending on the specific plastic, there may be better options. The link in the description has the best info I could find on the silver process, but nothing detailed about preparing plastic.
@@AppliedScience Ahh wicked! Might experiment with that sometime, thanks for the info!
The only channel on TH-cam that starts by telling you the results and showing you the end within the first ten seconds. *Even the channels we love like practical engineering and especially tech ingredients do scummy sleazy clickbait intros and titles and thumbnails* . Ben is the only one who refuses and makes you stick around by sheer awe and respect ❤️
It doesn't get any better than Chocolate and Electron Microscopes ... except maybe holograms ..... :)
I would love to see your video on chocolate tempering!
I liked the mid 90s styled holograms. Nothing says 1993 like a 3D globe hologram over a 2D grid. Reminds me of a visit to the Science Museum in London as a kid. It was all space, lasers and holograms 😀
Struggled with phase diagrams for metals in school, never occurred to me chocolate solidifying would be similar
the predictions for 2020: hover boards
the reality of 2020: this amazing shit
I wonder what it would take to create such surface features, instead of copying them. My guess would be some form of photolithography?
Rather it is an electron beam lithography process. The diffractive patterns need quite small features.
How on earth do you get to think of all that awesome stuff? Better vantablack, camera lenses, now holograms (?) on chocolate (???) I am speechless after each and every video, great work!
Very cool. Fun project. Thanks Ben.
yo rainbow images, 3d images?!?, COLOR 3D IMAGES!!!!!?!???!? ON CHOCOLATE!! AWSOME!!!!
This was super cool! And I'd love to see a video on chocolate tempering, sounds super interesting.
Definitely in for the tempered chocolate video!! Amazing work as always!
This might actually be the best channel on TH-cam, along with Cody'sLab of course. Thank you, Ben.
Wow. So many cool ideas and techniques used in one video. That's kind of the meta theme of this channel though huh?
This is so awesome! My sister recently sent me a Twitter pic of someone that'd done this and it blew her mind. I'd seen it before and told her how it was done, but so cool to see you do this so soon after that!
I would LOVE to see the different crystal states of chocolate if possible. I think it's fascinating.
8:11 - Yes, chocolate microscopy, please. 👍👍
As far as I know, You pretty much can't see the crystal phases of cocoa butter in a microscope (maybe cryo-TEM ?). This is typically done using X-ray diffraction. Of course, chocolate microscopy is very useful for lot of other things. For examples: doi.org/10.1016/j.jfoodeng.2010.09.023
i didn’t want the video to end! thanks man!
Time to make some trippy looking shroom chocolates! Lmao
absolutely
You probably thought of or tried this already, but did you consider gluing the hologram face-down to a more flexible substrate? That way the silicone mold might be unnecessary. Can't get enough of your videos by the way, super awesome stuff!
I was hoping to see him taking a bite at the chocolate at the end... just like in the astronaut ice cream video!
i wish i could go into the future to see what Ben will come up with in next 2-5 years.