I hope the "younger" generation watches your videos and becomes curious to learn more. This is a first class demonstration of the polarization of light.
@SoumilSahu5 жыл бұрын
We are watching alright. I'm only 17 and her videos have me HOOKED
@styropyro5 жыл бұрын
awesome demonstration of polarization optics! i'm jealous of that optical breadboard BTW
@jeriellsworth5 жыл бұрын
It's nice, but I never seem to have enough of the lego bits to bolt down to do what I want.
@jafinch785 жыл бұрын
I've made 1-2-3 blocks before and the optical breadboard seems like an interesting project that is an almost really large scale 1-2-3 block that maybe someone in a machine shop or machine shop at a school can make more cost effectively than purchasing. Especially when made with recycled material like some have locally from say around where I am at the moment... the Schupan Boneyard: schupanboneyard.com/ps/schupan_boneyard_aluminum_and_plastics_catalog.cfm#SIG=STAI
@electronash5 жыл бұрын
styropyro Congrats on the Motherboard docu. I'm glad you also had chance to get the point across about science / educational channels getting videos taken down just for a few reports about the perceived "danger". Keep up the good work. P.S. Great to see you back, Jeri.
@electronash5 жыл бұрын
The optical bench brings back memories for me. I used to work in telecoms factories, mainly building passive optical mux / demux devices, but also splicing some EDFA (Erbium-Doped Fibre Amplifier) stuff. It was quite interesting, but I don't think they ever mentioned the hazards of us staring directly at the IR beams for months on end. I know it was probably only a few mW, but we were never given goggles. Mikeselectricstuff is an amazing channel. Agreed. Everyone should also watch his presentation on the Eidophor... kzbin.info/www/bejne/aV6lp4CZpqqWb5o
@Garganzuul5 жыл бұрын
@@jeriellsworth Out of curiosity, are there any particular ones you are looking for? Acoustic-optic modulators fascinate me, for one...
@musbtrump5 жыл бұрын
Thanks for returning Jeri.. I love your explations, often on subjects or devices I never knew existed. Interesting stuff. Keep it up Please! Are you still doing any pinball projects, would love to see collection?
@CrucialMuzic5 жыл бұрын
Absolutely love how simple your explanations are. And it makes me happy to see that you're releasing videos more consistently again :)
@vincentssoul23695 жыл бұрын
Can't stop thinking this channel probably Sheldon's favorite one :)
@garybevis86915 жыл бұрын
Hi jeri, great demo, you make the difficult seem simple, and that is a gift.
@jeriellsworth5 жыл бұрын
This comment means a lot to me.
@garybevis86915 жыл бұрын
@@jeriellsworth Hello, I just discovered your channel, I am impressed with your knowledge and easy to follow style, also I'm slightly smitten. I hope you do more videos soon. We have a number of common interests and I appreciate what you have accomplished and I understand how difficult it is to make a good video. To teach and share as YOU do is commendable as well as a great gift, and I want you to know that. 73's KI7TWX
@badacktor5 жыл бұрын
that optical breadboard is very swanky, your equipment and endless knowledge is incredible, and mike’s channel has been a favorite since big clive recommended the video wherein mike exploded an rcbo/gfci. utterly spectacular.
@tonysfun5 жыл бұрын
You have not just great mind, but all the great toys! I wish I was living next to you lab! Thanks Jeri.
@DietterichLabs4 жыл бұрын
Nerd thunder through Applied Science is what led me to you. Definitely subscribed.
@DextersTechLab5 жыл бұрын
So good your back making videos Jeri!
@JanKowalski-ip2kb5 жыл бұрын
Jeri You are the best. Greeting from Poland. Thanks for returning.
@jerryg505 жыл бұрын
Great demo. I always liked to watch your videos about electronic circuits and various. Thanks!
@tonythediyer85375 жыл бұрын
Love that grid table. The castAR glasses have some neat optics too. So glad you are doing regular videos again.
I am quite at a loss to know how to speak to such a genius as yourself - you who have made transistors yourself and was not overly concerned about hydroflouric acid. Some years ago I taught myself enough electronics to be able to automate model railways, and it was while this was going on that I first came across your wonderful videos on youtube. I also sent off on ebay for that joystick with the c64 games on it (long before the c64 mini). I am not an electronics genius, I just learnt a bit about how to use voltage comparators for sensing, to use TIP 120 NPN transistors to switch stuff on and off, motor controllers & c. I did reprogram a DCC system so that it could make use of the timer 0 interrupt to do useful stuff like populating the serial buffer & processing the DCC packet buffer....I am not a practical person though, so my wiring is rubbish. Trying to use fibre optics to get the LED lights to go into the inside of buildings without the hassle of soldering loads of wires (the LEDs I will just plonk into a breadboard), but, damn, the light emerges as tiny ineffectual pinpoints - sort of ok for on the side of buildings though. You inpsire me though to figure out a solution. You are a hero to many.
@BOLL77085 жыл бұрын
I had no idea this kind of polarizer existed. Great demonstration with the two dots, that confirmed exactly what you had described in a very practical way. Feels like I'm back in physics class 😄
@ohabbal81695 жыл бұрын
So cool! Even though I'm in an engineering field, I never knew such thing existed! Beautiful..thank you !
@miklov5 жыл бұрын
Came for the nice optics bench, stayed for the introduction of filters I didn't know about =)
@recumbentogiro265 жыл бұрын
You make the complicated look simple. Have you ever considered being a teacher? You would be brilliant! Thank You for taking the time to make all these fascinating videos.
@kentvandervelden5 жыл бұрын
An enthusiastic seconding of the teacher suggestion. Many alternatives to being a traditional teacher as well, such as mentoring for STEM and First programs or even just being a mentor for that special science or engineering minded student needing some support. The school counselor would have great ideas.
@spacefolder5 жыл бұрын
She’s actually OUR private youtube teacher :)
@lazerkate5 жыл бұрын
I thought exactly the same thing while watching this.
@robertjohansen74826 ай бұрын
Another amazing demo, reminds me of some work I was part of in a electro optics lab in 2007
@DAVIDGREGORYKERR5 жыл бұрын
I is nice to see you back again.
@LutherRayable5 жыл бұрын
You are a smoking hot nerd with a great gift for teaching. Thanks for a great lesson on polarization. Combined with your experience in roll cages,cars, transponders and transducers- it would appear that you are well on your way to building a spaceship. The face you make when nerd thunder is mentioned totally cracks me up! XD
@Hydroculator5 жыл бұрын
Jeri Ellsworth! Now that's a name I've not heard in a long time. A long time. Great to see you making videos again!
@kabkab84415 жыл бұрын
I love this channel, people doing home spun experimentation GREAT!!!
@kabkab84415 жыл бұрын
Thanks for the heart. I like your optics bench. Does it float? Maybe you should build an interferometer and try some experiments verifying Newton's law of gravity, or real image holograms - just a thought.
@xch3no25 жыл бұрын
Beautiful device yes, thanks for the fascinating demonstration. But I really do hav to say what's beautiful is your crazy smart IQ. Thanks again, good job, keep sharing the knowledge.
@amicklich67295 жыл бұрын
Mike's channel is great - as is yours! Always such very unique, fascinating content. Best
@phaZed95 жыл бұрын
That was a great demonstration and explanation! I could play with that for days.
@Anvilshock5 жыл бұрын
Please don't look into laser beam with remaining eye.
@FroggyMosh5 жыл бұрын
Your workplace / lab is so cool.
@etienneguyot90695 жыл бұрын
So simple demonstration and so excellent!
@stephanegilbert88005 жыл бұрын
Thank you for this great explanation. Please continue doing so.
@taylerchew5 жыл бұрын
the last part is awesome great demo
@playoffl36ron85 жыл бұрын
SHE'S BACK!?
@Anvilshock5 жыл бұрын
That green laser light and the warm colour temperature setting of your camera makes this video look outright festive! It's our most favourite Jeri The Electronics Elf Ellsworth! :D I take it the converter you have there is a reject due to the two beams being misaligned, right? Or is this normal, and anyone using it will either have to see making them coaxial again, or will not bother because their application doesn't require them to be coaxial because there'd be some beam splitting involved anyhow?
@rigfix5 жыл бұрын
Hi Jeri, thanks a lot for a great video. I really appreciate it. This is something that I have wanted to learn more about for quite some time. It would be great with more videos about optics. BTW, you have a very good way of presenting :)
@carldavis82285 жыл бұрын
Fantastic video, and thanks for the tip about Mike's site. Will go there now.
@SuperVorticon5 жыл бұрын
Back to your roots. I remember you from your core memory video. Brilliant! It's also amusing to read all the google eyed comments from smitten admirers. Enjoy it :)
@garagemonkeysan5 жыл бұрын
Why does it not surprise me you have your own home optical table and equipment. I know you're the real Toni Stark. : ) Great video.
@davidgermain5 жыл бұрын
Welcome back.
@campbellmorrison85402 жыл бұрын
Excellent explanation, I just pulled one of these from a projector and wondered how it worked
@00Skyfox5 жыл бұрын
Fascinating stuff! What I've never been able to understand is circular polarization. I can understand the photons of light all oscillating in one plane or another with traditional polarization, but spinning in a circle and still being polarized boggles my mind.
@YusakuGod5 жыл бұрын
nice to see your back!
@Anvilshock5 жыл бұрын
Uh, she never turns her back towards the camera …
@karanmarwaha66055 жыл бұрын
Jeri, you are an inspiration!
@davescruton28295 жыл бұрын
Great to see you Jeri!
@51nw5 жыл бұрын
another great presentation Jeri, i learn so much from you. you have a great way of explaining complex subjects so less than genius people like me can understand. love ya lots:)
@DrTeddyMMM5 жыл бұрын
Love all you do!...Thank you!
@helmutzollner54963 жыл бұрын
Wow! Excellent flic! Thank you Very, you do the coolest experiments. Very interesting indeed.
@solotron73905 жыл бұрын
Hey, Jeri, try cross polarizing two filters to block most of the light, then add a third filter aligned like the first (i.e., sandwiching them). To your astonishment, and contrary to logic, the polarization of the first filter will be restored.
@jeriellsworth5 жыл бұрын
Yeah. I love that.
@solotron73905 жыл бұрын
@@jeriellsworth Thought you might.
@2000freefuel5 жыл бұрын
@@jeriellsworth it's almost begging to become an optical switch...
@NiHaoMike645 жыл бұрын
I recall Physics Girl did that, but the third polarizer (in the middle) was at an in between angle compared to the other two.
@mikesradiorepair5 жыл бұрын
What's even more fun is to pass light through a third polarizer. With one left to right and one up and down no light gets through. Add the third at a oblique angle and the light reappears. Saw this demonstrated many many years ago on "The Mechanical Universe". Here's a link to the video. Yes, it's probably older than half of you watching it but still very informative. The lecture that covers it starts around 20 minutes. kzbin.info/www/bejne/iYWtk6edYtVne6M
@naraic0o5 жыл бұрын
might be worth stating that the third oblique filter needs to be between the two original perpendicular filters. interesting video, for anyone who wants to skip to the demo it's the last 4 mins or so.
@superdau5 жыл бұрын
Ever since I found that out as a kid when playing with polarizers (salvaged from calculators or generally any stuff with LCDs), this has become one of my favorite "weird" physics experiments.
@mikesradiorepair5 жыл бұрын
@@superdau It is a cool and weird experiment much like the double slit experiment where a beam of light passing through two slits makes a series of bars of light appear on the surface behind it.
@kinpatu5 жыл бұрын
therealnightwriter It’s not due to reflection. The probability of a photon passing is the cos^2 of the angle between the polarizer and the photon’s electric field. Furthermore, after passing through (if it does), the photon assumes the polarization of the polarizer (hence the name polarizer is apt, rather than just polarized filter). With only two orthogonal filters all of the light that propagated through the first filter is blocked by the second filter because cos(90 deg)=0. Introduce the third filter in between at 45 degrees to both and you have a 50% chance of passage at each interface, so 12.5% of the light can pass through the aggregate filter set.
@peteabc15 жыл бұрын
Ty, never saw this. That's like magic :D.
@almosthuman44575 жыл бұрын
You have some pretty cool toys. For a moment, I thought Val Kilmer was going to pop into frame with a beaker full of yogurt.
@LasseHuhtala5 жыл бұрын
That was the movie that got me interested in light and polarization, and also embrace my nerdhood. :-)
@seantownsend25 жыл бұрын
Thank you for making new video again.
@Giblet5355 жыл бұрын
I got in a lot of trouble at 8yo for sacrificing dad's Ray Bans to science. I still think he overreacted.
@zvpunry19715 жыл бұрын
Today I learned about polarization conversion systems and a potential source for them (broken/discarded projectors and VR-headsets). Until now I looked for broken/discarded LCD screens to get large sheets of polarization filters and completely ignored projectors. The next time I visit the electronic waste dumpster, I'll look for projectors too. One use for polarized light sources is photography. Everyone knows how some reflections can be removed with a polarization filter in front of the lens. This works because some of the natural light is polarized. If you want to take a picture with artificial light, put a polarization filter in front of the light source (or maybe such a polarization conversion system) to get rid of most reflections and glare.
@g0fvt5 жыл бұрын
I stumbled across a weird effect with a camera polarising filter, I did the usual trick of stacking them and rotating one expecting a null. An effect I remember with polarised sunglasses. Strangely the camera ones behave differently when one is flipped over, sorry for the vague description. Love your videos, keep up the good work.
@Roberto-dd1te5 жыл бұрын
Great video! Please keep making more
@KISHORENEDUMARAN4 жыл бұрын
Awesome explanation and demo!! this helped me understand google glass tech
@Fightosaurus5 жыл бұрын
Put the polarization filter in front of Jeri, and any way you orient it, she's still brilliant!
@rouuuk5 жыл бұрын
i caught myself watching ur vids with a smile on my face. actually showing teeth xD
@KevinTwiner5 жыл бұрын
Awesomeness, Merry Christmas 🎄 an thanks for a wonderful breakdown on polarizing
@movax20h5 жыл бұрын
Excellent video.
@tek45 жыл бұрын
I LOVE YOUR TABLE . I really need to make one
@xspeax53975 жыл бұрын
Speaking of education you should wear safety glasses when bringing optics into the beam! I don’t know the power of the laser, but I assume it’s above eye safety ! The experiments are great ! Great video !
@RickBoat5 жыл бұрын
I was getting ready for bed but there's a new Jerri Ellsworth video. O well so much for bed.
@alancordwell97595 жыл бұрын
Very interesting Jeri, thanks. :)
@californiakayaker5 жыл бұрын
Beautiful Demo.
@juglansregia14335 жыл бұрын
why aren't there more people like you in his world??
@jeriellsworth5 жыл бұрын
Its probably good they broke the mold when they made me.
@luiscantu49683 жыл бұрын
Hi Jeri! This was great ✨💫
@electronJarvs5 жыл бұрын
It must be christmas more videos from jeri :)
@anim8torfiddler8715 жыл бұрын
Cam you comment on the small "screens?" I would normally expect a screen/target to be white, with some highly specialized material for optimal reflectivity. In this case black for optimal absorption?????
@ArnabDasBwn5 жыл бұрын
As always this was also an informative video.
@mikeflight95 жыл бұрын
Great video. Thanks. Well, I am new to the polarisation of light but I do know that the laser light is related to spooky action at a distance. lasers have a unique way of moving even space-time if done correctly.
@TheVirindi5 жыл бұрын
This also reminds me of some of the stuff Tech Ingredients was talking about doing. I would definitely be interested to hear more about how these devices apply to your project...if it is okay for you to go into that. I guess the polarizer is used in front of the projector? How much does that really help compared to just using a filter? Does it help with heat a lot?
@andy166665 жыл бұрын
Can't figure out how I got unsubbed. Anyway, fixed now. Awesome content, as always, Jeri! :)
@MikeTrieu5 жыл бұрын
I have a strong suspicion this is the optical stack you used for the Tilt Five ;)
@limsi215 жыл бұрын
And what is the secret way you look exactly same 7 years ago?
@jeriellsworth5 жыл бұрын
Thanks! My secret os 4-6 cups of coffee a day, limit sleep and constant stress.
@MusicLover-vq3ol5 жыл бұрын
@@jeriellsworth I've been doing it all wrong!
@etheroar63125 жыл бұрын
@@jeriellsworth It works. I lived that way for years. I'm 70 yrs old and people tell me I don't look a day over 68.
@JediNg1355 жыл бұрын
The blood of virgins!
@ZuNunchaku5 жыл бұрын
converting and polarization the light
@ethanmye-rs5 жыл бұрын
Did you build or buy the optics table? It's fantastic! An interferometer build would be really cool if you're looking for video ideas.
@jeriellsworth5 жыл бұрын
I didn't build the table. An interferometer would be cool.
@BarriosGroupie5 жыл бұрын
A year from now, Jeri will be demonstrating chirped pulse amplification that won Strickland and Mourou the Nobel physics prize.
@youpattube15 жыл бұрын
It is nice to see you back on youtube. It has been years. You are still a beautiful woman.
@Peter-W15 жыл бұрын
Wow second recording with heavy strike, hope you live in a Faraday cage Jerry ;-) I have polarize problem sometime when I have the sunglasses on when filling gasoline the polarize is blocking the LCD numbers from the gas pump :-) - -... ...- -
@Ivan-bh9cw2 жыл бұрын
Thanks, it helps to understand those systems
@UnrealVideoDuke5 жыл бұрын
Great KZbinr! He doesn't post often enough. Wait a minute, you don't post that often as well. Thanks! Could you suggest Julian Ilett or BigClive? Or even better... BioNerd23!
@anim8torfiddler8715 жыл бұрын
Thanks for this post. It would be great if you could share some links to further information on the filters. Recently I’ve been teaching 2D & 3D animation & graphics at a school that includes a strong photography program where this information would be appreciated. *These filters could be mighty helpful in low-light situations in which opening the iris for more light unacceptably narrows depth-of-field.* Most Animation in the US is of course, now done with computer applications, but Producers such as Laika Films, producers of "Box Trolls," and Nick Parks, designer/director of "Wallace & Grommet" and "Chicken Run" use actual constructed sets and puppets with elaborate lighting set-ups where such filters could be mighty useful. When I first opened my tiny little animation studio I set up a simple camera stand with a fer-Pete's-sake used Bolex 16mm camera. *The stand held large polarizing sheets between the lights and the art stage. A small glass polarizing lens on the camera filtered out any stray light from scratches and dust on the layers of acetate overlays that made up all the animation art and a heavy glass platen mashing the whole stack flat to prevent unwanted cast shadows. *Animation is after all an elaborate HOAX, that requires just as much preparation as a Las Vegas Illusionist Act.* Anyhow, even with losing 3/4s of the light to the polarizing system, the suppression of all the diffusion sources resulted in much better color saturation all around. Just had to open up the Iris a couple of stops...
@DANTHETUBEMAN5 жыл бұрын
light magic. years a go i looked for a combining Lazar light Cristal and they did not have one at the time, you had to use a amp,, now i see there is one that adds half again the power to the original beam. i think this shows there is still a lot of room to create new things. i want that table for my computer desk :)
@DeanSegovis5 жыл бұрын
Didn't know about the polarization converter. Pretty neat device! I'm thinking you used this in your AR devices?
@jeriellsworth5 жыл бұрын
We couldn't afford the cost. :)
@LightSoySauce5 жыл бұрын
1. Great Video thank you 2. Mikes Electric stuff, one of the true youtube tech gurus :-) 3. For the love of god Jerri, marry me :-)
@algharibe5 жыл бұрын
awesome and great video we need more :D
@madscientisthut5 жыл бұрын
Another great demo!
@Egon19825 жыл бұрын
Great job ofc. This is very helpfull when riding motorbike or car and recording your speedo. Use one polarisation filter ⬆️ on speedo and other one on camera ➡️ problem with evidence of speeding is gone ;)
@DanLoFat5 жыл бұрын
Jeri, is that fancy expensive lens similar to what we see in today's automotive headlights?
@nullunit55665 жыл бұрын
Jeri is a tour de force!
@piezokristall5 жыл бұрын
Hey Jeri, how about a video about double-slit quantum erasors?
@YQTFun5 жыл бұрын
I'm presuming that the dots after the conversation arrive at different times. Probably not a problem visually but maybe... 😊 great video.
@aceofspades025 жыл бұрын
Awesome information. Thanks.
@gustavlicht96205 жыл бұрын
I admire your lab. I wish I will be able to get one like that one day.
@TheMorpheus0175 жыл бұрын
Three videos in two weeks? Is that christmas already?
@jinja-satanica71985 жыл бұрын
got any tips for filming or taking better shots of the moon, reducing the light rays so i can use less of a zoomlens ?????
@daviddavidson13725 жыл бұрын
Way over my head.but thanks for teaching me something new today.
@avejst5 жыл бұрын
Wow, now knowledge Thanks for sharing👍😀
@1luarluar15 жыл бұрын
I don't unserstand anything but is a pleasure to listen anyway...:-)