Why RED BUBBLES are impossible… or are they?!
ฝัง
- เผยแพร่เมื่อ 24 ก.ย. 2020
- Take a look at a bubble and you’ll see all the colors of the rainbow... right? WRONG. Bubbles are actually missing colors!
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Creator/Host: Dianna Cowern
Editor: Levi Butner
Production Assistant: Hope Butner
Thanks to
Ben Ryder for the amazing footage of wave interference from his TH-cam channel: / @benaryder
The awesome folks who shared their bubble pictures with me on twitter!: Andy Callaway, Philip Palermo, lifewithjess, Danny Thomas, Cate McCleery, @SbastienAndrie4, and so many more that didn't make it into the video.
Special thanks to our Sally Ride level patrons: David Cichowski, Fabrice Eap, Henning Bitsch, Kenneth Hunter, Margaux Lopez, Patrick Olson, Vikram Bhat, wc993219.
Join the Physics Girl Patreon community! ►► / physicsgirl
Sources:
Wave interference video footage provided by Ben Ryder's TH-cam channel: / @benaryder - วิทยาศาสตร์และเทคโนโลยี
Diana: "Why it’s impossible to make a red bubble… or IS it?!"
*Vsauce Theme intensifies*
hey vscause micheal here
I thought the same
I wanted this comment
hey michael vsauce here
Yes! What about Fox News? There's a red bubble!
Dianna, you've always been so bubbly. Excited for your next videos! YOU GOT THIS 🔭
Indeed
Correct!
Me too awaiting her next video!
You two girls were my favorite pbs content creators
rule of thumb: only describe a girl's personality as bubbly(?) -otherwise it means something else
8:32 where it cancels out and enhances over and over is frickin awesome
good luck with independence!
Math : polynomial
Factor higher degree polynomial
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One time see it......
If two lasers cancel each other out completely, where does the energy go?
@Olof Andersson I really want to know as well. Since no one has answered you in 6 months now I will guess. My guess is it goes to imaginary space, the place when you take the square root of negative numbers.
@@foolo1 the energy is converted to other form of energy
Diana: "Why it’s impossible to make a red bubble… or IS it?!"
VSauce: Finally, a worthy opponent! Our battle will be legendary!
Congrats! You was faster than me 😍
Or, will it?
"First we need to define a battle..."
Math : polynomial
Factor higher degree polynomial
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One time see it....
She has the scroll then? lol
I enjoy the “in the moment” explanation. It would probably NOT be better in an animation. The way you do it is easier to abstract. Great video
I personally disagree but I understand your point
I agree.
Math : polynomial
Factor higher degree polynomial
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It would be better but it wouldn't be ~better~
Jumping over to Patreon to do what I should have done already.
Math : polynomial
Factor higher degree polynomial
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One time see it.....
Honestly Diana is the only thing keeping me going towards my stem degree at this point
You got this. I’m also working towards a stem degree too. We can do it!
@@mohammedimaad4454 you realize that's a pic of lady gaga right you creep? Lmao
Im a senior in highschool, taken AP physics 1, AP Physics b and now im taking c. Im aiming for a mechanical engineering degree in the future (I mean next year)
@@Thanhnguyen-pu5se you got this!!! I survived AP physics so you can too :)
@@ChoralAlchemist ayyy let's goooo! Maybe we'll work together sometime in the future!
"If you don't trust me"
I wouldn't be here if I didn't trust The Physics Girl.
It's the mark of the intellectually honest person though - telling your audience not to take everything on trust.
Math : polynomial
Factor higher degree polynomial
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One time see it.....
I'd be here just because the lockdown is depressing and it's nice to see someone who's chirpy
6:47 Is that shade being thrown in a discussion about how wave interference can result in the cancellation of certain colours? Meta.
EDIT: Oh wow, your lead-in hinted at it but that announcement at the end actually caught me off guard. Wishing you loads of luck and oodles of fun with the channel moving forward! That would explain the animation budget :P
It's really PBS's loss. She's one of those presentators who's enthusiasm and sense of wonder makes others interested and they, themselves, ask why things are the way they appear.
Glad to hear it's not an end but rather the beginning of another chapter.
What’s wrong with PBS?
@@donnasummer6285 I'm wondering the same thing.
Try sneezing with a nosebleed. :(
Josh lol true
Blood mist!
Fff
Math : polynomial
Factor higher degree polynomial
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I sneeze through my mouth 😬
3:11 The thing shown as an example of a "coating, like of paint," is not a coating of paint; but it IS a coating. That's a naturally-occurring crystalline form of bismuth. The iridescence on the surface is oxidation.
I was so relieved when you said you were still carrying on your channel. I thought we were going to lose you and that would have been awful. All the best.
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
I wonder how many times she said "string theory" in the outtakes.
I love your stuff and look forward to any new vid you bring out. I make it a habit of showing them to my grandchildren. Very intertaining, informative, and yet easy to understand. Please keep up the awesome content. Good luck.
Excellent explanation. Understanding bubbles and colour helped when I encountered dichroic filters. That is a whole other madness! Good luck with your solo venture.
This same phenomenon is used to determine the atomic and molecular structure of a solid/crystal. The field is called diffractometry, and it can be done not only with photons (light) but also with, for example, electrons or neutrons
I remember seeing on one of the physics YT channels, a lab with a nuclear reactor where they used a neutron beam to see inside an internal combustion engine, that was pretty wild.
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
@@mr.knight8967 and this is relevant to my comment why? lol
"where was I?"
You were being adorable
Math : polynomial
Factor higher degree polynomial
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One time see it..
I recommend your videos to my students, they're so fun and well explained. Looking forward to many more of them
“Suspicious, huh?” 😂 Dianna is adorable!
9:45 Diana, you scared the bejesus out of me for a second there.
Math : polynomial
Factor higher degree polynomial
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One time see it..
I'm sure we are all going to love your newly independent channel, good luck!
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
All the very best for the future Dianna!!!
Thanks for inspiring me and soooo many other children to persue there passion for physics....
Your enthusiasm and playfulness is so contagious and delightful. It's always a joy to watch your videos, especially for me as a physics teacher.
I wish you so much success and joy for your future! :)
Me: the math behind this is awesome and surprisingly useful.
Also me: colors pretty!
(Sidenote: here's an idea, try this with 2 wavelengths, one at half of the other.)
So eyes with different configurations of receptors see soap bubbles differently? If you're an animal with many more than three color receptor types, bubbles must look even more amazing!
well in more detail, colours that are almost in phase or almost out of phase add or subtract to a lesser degree. So really, it's not a specific blue being subtracted to make magenta, it's a bunch of near by colours kind of putting a dent in the spectrum.
If your eyes have different wavelength receptors that are still somewhere kind of close to ours, they'll look quite similar, though different parts of the rainbow would be very subtly brighter or dimmer.
Where things will drastically change is if their receptors are much shorter wavelength (think 1/2, or 1/3, etc) the less saturated pale colours where the rainbow repeats further down on the bubble could look very different to them.
But if your eyes were that different, everything else would look completely different too.
If I remember correctly the Mantis Shrimp has the most sophisticated sense of vision in the animal kingdom. I wonder how that creature would see the soap bubbles?
Excited to see where things go from here. I love how excited you always are in these videos, it's what keeps me coming back.
Really enjoyed the presentation (including string manipulation); even the bits I already knew (e.g. oil bubbles) were compelling. I also wear anti-reflective coating on my spectacles which works the same way and STILL did not work out "why not red?" until your big reveal. I worked out a red laser would see a red bubble but I did NOT guess how interesting the result would be! thank you!
If only you were my physics teacher in high school, you would have been one of my favorite teachers!
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
If you guys want to have some fun, try watching the shadows of bubbles when you shine a flashlight on them!
Wonderful !!! I'll show it to the students in my class.
I made a video showing this effect on the wings of the morpho butterflies. The blue on these wings is an interference color. You can see shades of green as well.
I remember reading QED by Richard Feynman where he talks about this with his little clock analogy
:O whoa congratulations!!! How can we support you outside of financial contributions on patreon?
Like comment subscribe! Haha no, you’re already supporting by watching. Thank you Jannerius :)
It also helps (slightly) to sit thru as many pre and post adverts as you can tolerate. My limit is usually 60 to 90 seconds total.
@@physicsgirl If you want to premiere videos - on perhaps an hour's notice - then people who don't use patreon can make donations through youtube.
@@physicsgirl wait, his name is John Lannon, diana
Math : polynomial
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One time see it...
You’ve led me down a rabbit hole I’m not fully prepared to travel down... 😂
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
Always excited to watch your videos. They are always extremely clear and easy to follow :)
This is the second video of yours's that I've watched and had to sub. Love your energy and such a smile that I'm sure you could walk into a room of angry people and within minutes everyone would ne happy and smiling. The way you explain everything doesn't leave questions and confusion. So awesome channel !!
This video is well timed.
I was just looking at oil sheen on the ground yesterday and thought about asking you to explain why oil sheen looks rainbowy
Now I don't have to
What a strange coincidence. But a good one.
The interesting thing is how oil sheen =doesn't= at all look like a rainbow.
Pause screen at 0:32 and look at the pattern on the bubble.
A cute heart is in the center upside down
Humans can recognize patterns really easily.
I have been watching for the longest time, I am excited to see you move on. And I love how enthusiastic and bubbly you are about every video topic, you have soo much fun with it!
I'm so glad you're continuing your youtube channel even though you're no longer with PBS, I love your videos
"so much light that some cancels out with others"
This isn't quite right. Even if you had a really dim source of light, such that 2 photons never touched the film at the same time, you could still see the colours in a long exposure photo.
What is really happening is that each photon is being split into a superposition of bouncing off the front and back of the film, and going through. And light waves can destructively interfere with their own superpositions.
Thanks for the mind-bending additional information :-)
Are you sure this is really like the slit experiments? (like have gone through the math or something) or are you just speculating, or repeating what you learned?
My face is full of red bubbles 😔
I'm so proud of you for going out on your own takes a lot of courage keep up the great videos
That was excellent. You can do massive projects with all kinds of complicated equipment, or you can sit at a desk playing with soapy water and string, and either way you're engaging, entertaining, and very very informative.
Keep on keeping on, and good luck with your new direction.
@Physics Girl Hi Dianna! I'm glad you made a video about soap bubbles and color, which is one of my favorite things. But guess what. You *can* get red in a soap bubble with white light. You just need a certain light source. Specifically the common *triphosphor fluorescent* light bulbs or tubes. I actually used Kaleidagraph to graph the intensity of the colors in thin soap films, based on the mathematics of interference (adding sine waves together with a phase shift). I have actually been able to accurately predict the colors in the soap bubble all the way out to 1500 nanometers or so, and the colors repeat after about 1600 nanometers. This is assuming the fluorescent light illumination, and a refractive index of 1.35 for the film. At about *800-850 nanometers,* there is a spot where the 611.5 nanometer spike, and 630 nanometer area of the fluorescent light add together, and most other colors, except one peak at 488 nanometers, cancel. This creates a red-like color I like to call "interesting red". So there's actually no reason that you can't get red in a soap bubble. You just need a light source with *discrete* emission spectra (rather than the continuous incandescence of the sun and light bulbs). And as long as those wavelengths are in the right place, red can appear. It's really cool! Thanks for the great video, and talking about something I've found fascinating for a long time!
Nice. I come for the jokes on the end card, but the videos are always good :-)
It's like a five-minute buildup to a dad joke. I love it.
You are so brave to go at it on your own. Thanks for the great channel, I for one will definitely be sticking with you.
We use the thin film properties of constructive and deconstructive interference to create anti-reflective coatings on camera lenses and eyeglasses. You found a great way to present this effect. Thanks for posting.
THE MOST SURPRISING THING:
WE LEARN THIS ON 11TH GRADE IN SOUTH KOREA
Really? Cool! It is so interesting specifically that you consider the inner and outer layer of a bubble.
7:20
Oh so that's how iphone x got its wallpaper,😂
I hope your future ventures are everything you want them to be! You keep making the videos, I'll keep watching!
Another amazing video, best of luck stepping out on your own Dianna. Can't wait to see what's next 😊
8:40 those are called Newton's rings! 🤓
Wow. I had seen those in pictures in the context of telescope building before, but had never put two and two together. :)
I think I learned a new thing today. Thanks! 😀
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
"If you search red bubble"
It's some company
my first thought was the video was going to be sponsored by red bubble. Missed opportunity there.
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it.....
She said it doesn't exist 🤣
This video blew my mind, sooo cool!! I love how I now know why there are stripes especially in a bubble because it's so fascinating!
@Rocky Boyo
And you can use those colored stripes to determine what light source someone is using, even if you can't see it directly!
This was cool, and something I wouldn't have guessed ... also well explained and animated lol.
Wow, you're making quite a leap, congrats and I'm looking forward to seeing what you do moving forward
=)
Dianna has Severe long-term covid. Share and support her please
Double-slit experiment? Nah, just make some bubbles and see the strips of light
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
You are amazing Dianna and your experiments are wonderful and amazing....... Really this episode of making bubbles is also amazing........ 😍😍😍😍
Best of lucks in this new stage! we'll be here rooting for you and enjoying your videos as always.
Missed opportunity for a sponsorship deal on this one.
With redbubble .com?
Fun fact: Your blood is red, and if you drink Coca Cola, it will stay red
lol
Fun fact: if you drink Coca-Cola every day, your life will be shorter, on average.
Really interesting video, as always. you could even talk a little bit about Rayleigh scattering
and why sky is blue and sometimes it appears reddish.
It's kinda cool that in the middle of one light demonstration (1:48), the Rolling-Shutter effect and the LED pulsing is shown in the horizontal lines in the reflected light.
Seems like physics girl is turning into a woman 🥴. For a moment I thought she was going to mention that she's getting married🥴. Don't pay attention, just rubbish bubbling up my mind without red.
Congratulations and good luck in your future. Love watching your vids. Keep up the great work.
Great video! Learned so much! Thank you and good luck on your new endeavors. All the best! :)
Good explanation. enough detail to give an accurate explanation, without being confusing.
You project a total enjoyment in doing this video. Wonderful. Thank you!
So glad the Physics Girl videos will be continuing! Best wishes to you! :)
Okay. I’m usually really good at following your videos. But this one melted my brain!! Amazing video!! Me and my daughter LOVE your content!!
We’re so proud of you!!! Awesome and exciting content!!! Looking forward to more.
"Oh no. Pleh." Best of your video edits, thanks. Made me smile today.
Omg. Decades ago, now...
I was in Gifted/Talented summer school and did a segment with bubbles.
We focused on things like water tension and how you could actually pass things through bubbles so long as they has solution on them too. It was fun!
Closest we got to red bubbles was by mixing some colorant (paint or some dye?) Into bubble solution and then blowing bubbles onto a bit sheet of paper. Made an art.
So, I knew about thin films and colors and such, but I am SO GLAD I watched! I've never seen the bands of red light. That was AWESOME! Thank you so much for doing that experiment!
It took me a few days but I finally got to finishing the video.....OMG! Congratulations and I’m excited for you! I look forward to seeing the first video of Physicsgirl Production studio!
I am a big fan and love your videos. Happy you are keeping your channel. Looking forward to your future videos.
Good for a backward travelling wave and forward travelling wave and very nice explanation is the young double slit experiment
09:09 - Eeek! ... oh, phew! Good luck with the future outside of PBS! Here's to many more years of Happy Physicsing !
Love you girl! showed us again something what is in front of our eyes, and we didn't see/remark it! i saw so much times bubbles, and didn't remarked the red missing! Vow! have to check it....
Woohoo! Go Dianna! Power to you. Love your content and hope you keep growing and producing such marvellous stuff :)
I love how you're always so giddy/silly in your videos! You should make a 2nd channel where you cover all of the same topics, but for which you'd be a tipsy/slightly-drunk in the videos. That would be extra fun to watch! :-)
Another great physics lesson presented in a fun, entertaining, & adorable way... accented with those amazing eyes :)
You make things really easy to understand. I love your videos.
We use this in spectacle lens coatings (and in other optics). The coatings are a quarter of a wavelength thick so the reflection from the back of the coating cancels out. We refer to them as anti-reflective coatings.
Wow bombshell! Congratulations and good for you! Great work as always Dianna!!
Congratulations on this new chapter! We're all rooting for you!
You're like a cross between the teacher I always wanted (your passion for science is super contagious) and Alyson Hannigan from her American Pie days. And my science understanding is only high school graduate level, but it's enough to keep up....mostly. Thank you for sharing science with your gift
Hello from Argentina ! Good luck on this new solo phase, we'll still be here. I love the videos, I can keep hours watching them, except I've already seen most of them so not anymore haha.
I have a Physics question for you: 've had this question for a long long time which no one could answer me yet. I don't know if it is Physics or Chemistry, you let me know. But have you noticed how colors left in the sun just fade away? I'm not sure if all colors, outdoor furniture usually break before. But I've had like decorative bowls and drawings in paper left for YEARS outside, and they eventually end up all "white" (or whatever the object's base color was). Once it even happened with a drawing which was always inside but behind a window which got a lot of light.
You're going to continue to do great on your next chapter of your journey, how exciting.
I found your Rainbow video and subscribed after watching it.
Onwards and upwards superstar 🌟
i have learned more about wavelengths in this one video than in my science class. you actually had me enjoy learning about wavelengths.
Good luck on your journey. I have now become part of your Patreon phamily. :-) I've been enjoying the Physics 101 videos, and enjoy your upbeat attitude. Thanks for making the world a brighter place.
9:09 I found that little laughter so cute, also, great content, and wish you the best for now on, we’ll keep watching
Math : polynomial
Factor higher degree polynomial
th-cam.com/video/vU7-06A3KXM/w-d-xo.html
One time see it..
Thanks! I was wondering about this exact thing recently
Wow, this is amazing and fascinating! 👍🏼😀 Well done.
That video of waves looked very much like the front beach in point Lonsdale in Victoria Australia. This is the town I grew up in and have not been there for over 20 years
Iridescence is an awesome phenomenon, I especially love it in certain animals that use nanometric structures to create color without needing to synthesize pigments.
Best luck in this new stage! Your content is awesome so I don't have doubt you are going to do great! 😃
Awww I remember in thee 80's as a young boy and watching , Thee Mechanical Universe & Beyond w/ my Grandfather and when I was given my first Erector set... Those were thee grande ol days! Best of luck too you Ms. Physics & PB$/Au\!!!
That was very cool, especially with the strings, but I think there is an error in one of the asides. It is suggested that the light crests of waves of a given frequency aren't all aligned (in phase), but that cancellation can happen in two-layer reflection between pairs that are. However, let's apply essentially the same argument to the case of single-layer reflection: the light crests aren't all anti-aligned (180 degrees out of phase), but cancellation can happen in single-layer reflection between pairs that are. That would imply almost no light is reflected from a single layer! So, one has to either explain double-layer reflection in terms of a single wave solution (wave picture), or interference of a photon with itself (particle picture).