38 Hilarious Refractive index Puns

TIL that in 1869, physicist Ludvig Lorenz developed an equation for the relationship between the refractive index of a medium and it's density. In 1878, unrelated physicist Hendrick Lorentz independantly discovered the same equation. The result is called the Lorentz–Lorenz equation. en.wikipedia.org/wiki/Lud…

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👤︎ u/rikeus

📅︎ Dec 08 2021

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What do you think and why? Natural or Synthetic? Using refractive index, I'm 99% sure it's chrysoberyl, so im mainly looking to learn about the inclusions each might have. It's probably synth, it would be too good of luck to have 2 half caraters. gotta say, for 20$, this microscope is pretty cool. v.redd.it/d29aletkxc781

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👤︎ u/Allilujah406

📅︎ Dec 23 2021

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Headache after refractive index change from 1.5 to 1.74

Hello,

Simple question.

Changed my glasses from refractive index 1.5 to 1.74.

So I had this eye exam a year ago exactly. Got my initial glasses from Zenni for the prescription, and refractive index was 1.5.

Hot a new pair of glasses with exactly the same prescription but with refractive index of 1.74.

I am wearing almost -6 on both eyes.

The new frame is just slightly bigger... 2 grams lighter. I believe lenses are also lighter.

I just got my worst headache during sleep the first night and I have mild headache the next 2 days. Glasses are fine and vision is good, but it seems my eyes is on the effect of cycloplegic agent and was not accommodating the first day that much. But is fine now.

Just feel a bit of tiredness in my eyes.

Strange as I haven't changed my prescription.

What could be the issue?

UPDATE: I remembered this now. My PD is 59. During ordering process, I got the message that minimum acceptable PD for the frame is 60. So I chose 60 as I did some research and it seemed 1 mm won't be problematic. Did I screw up here? Couldnitnbe the problem?

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👤︎ u/purplepill83

📅︎ Dec 21 2021

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ELI5: Why is refractive index a complex number, and what do the real and complex part tell about the material?

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👤︎ u/Global_Maize_8944

📅︎ Nov 30 2021

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Compounds of metals like aluminum and lead can form transparent colorless glass, but can any metal? Does tungsten glass have the highest refractive index from consumer-suitable materials? Would iron-glass be the cheapest? How about transparent plastics made of metal compounds?

Basic glass has sodium, pyrex has boron... Even if a glass type only passes narrow band in UV or near infrared, it could be useful in some use.

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👤︎ u/kiteret

📅︎ Dec 18 2021

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Pls Help . I got 2 Problems 1. Why does my coffee look like muddy water through the glass 2.The Reflection of the plate is too high(i think i accidently increased the refractive index of glass?) reddit.com/gallery/r4zmor

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👤︎ u/DJBravo612

📅︎ Nov 29 2021

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Refractive index of about 1.54 not quite quartz level though. Ideas? I don't think it's iolite bit that's been my slip 2 times now.

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👤︎ u/Allilujah406

📅︎ Sep 14 2021

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Apparently just physics: this is happening when refractive index of liquid = refractive index of the container. Means nothing to me but wow.... v.redd.it/kso39vq1pjd71

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👤︎ u/robertngororo

📅︎ Jul 26 2021

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Thin film interference theory is discussed that deals with materials branch of physics and chemistry. Given the refractive index of materials, reflectance, transmittance and absorptance from a structure can be calculated. asrmeta.com/thin-film-int…

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👤︎ u/wolfiota

📅︎ Jul 07 2021

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When the liquid has exactly the same refractive index as the glass v.redd.it/wkrcvvlk9c561

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👤︎ u/bedir07

📅︎ Dec 15 2020

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I love physics!! Apparently this is happening when refractive index of liquid = refractive index of the container v.redd.it/eh30ds84pjd71

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👤︎ u/robertngororo

📅︎ Jul 26 2021

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Light Pulses Change Speed in a Plasma. Note( key statement): Where the paths of the two beams crossed, the horizontal component of the second laser pulse slowed in response to a change in the plasma’s refractive index. physics.aps.org/articles/…

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👤︎ u/Difficult-Cut-9689

📅︎ Aug 01 2021

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Does this representation of a single-layer interference AR lens coating look accurate to you? To determine refractive index, I followed √(1.0003*1.7452) ≈ 1.3213, then rounded up to 1.38, as MgF₂ is the closest value in real-world application. For thickness, 587.56nm / 4 = ~145nm.

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👤︎ u/TheRealMandelbrotSet

📅︎ Sep 03 2021

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When the liquid has exactly the same refractive index as the glass. v.redd.it/9mc802rlqb251

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👤︎ u/buskhaliemj

📅︎ Jun 01 2020

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Clear orbeez looks like they've dissapeared under water as both water and orbeez have the same refractive index.. v.redd.it/3einy069tzj61

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👤︎ u/lowchan_r

📅︎ Feb 27 2021

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You are given the refractive index of a medium and the angle of incidence.

Calculate angle of refraction .

Cocks gun do it now.

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👤︎ u/TP4297

📅︎ Jul 26 2021

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Schlieren Imaging — an incredible optical technique that lets you see air currents. This technique relies on a point source of light, a spherical concave mirror, a blade/knife edge, and of course, a camera. It's able to discern variations in the refractive index of air. v.redd.it/shzhslbzpn561

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👤︎ u/rohanahuja

📅︎ Dec 17 2020

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Fun fact: Glycerin has the same refractive index as Pyrex glass v.redd.it/wkrcvvlk9c561

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👤︎ u/SaltDotExe

📅︎ Dec 15 2020

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[ASAP] Room-Temperature Metal-Free Multicomponent Polymerizations of Elemental Selenium toward Stable Alicyclic Poly(oxaselenolane)s with High Refractive Index

Journal of the American Chemical SocietyDOI: 10.1021/jacs.1c06732

Xiuying Wu, Junxia He, Rongrong Hu, and Ben Zhong Tang

https://ift.tt/3El4pWM

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👤︎ u/TomisMeMyselfandI

📅︎ Sep 15 2021

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When your balls have the same refractive index as water

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👤︎ u/Redditlogicking

📅︎ Mar 07 2021

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Catculating the refractive index of water v.redd.it/1wf69hrdq1x51

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👤︎ u/Sariel007

📅︎ Nov 09 2020

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[ELI5]Does light loose momentum after moving through object with higher refractive index or does after coming out that object it again travels at c

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👤︎ u/prashant13b

📅︎ May 04 2021

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Waters 410 refractive Index Detector Service manual?

Hello, does anyone know where I could find a service manual for this detector? It is showing implausible oven temperatures and the intensity of the LED ist fluctuating very strongly. Maybe someone of you even has a solution….

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👤︎ u/luthier91

📅︎ Jun 11 2021

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If light refracts through the atmosphere from a large distance and appears red due to the high wavelength, then why does the earth appear blue and not red from space with the same refractive index ( atmosphere) ?

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👤︎ u/theboredspy

📅︎ Mar 27 2021

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Gel Permeation Chromatography- light scattering and refractive index

Hi! I had two questions regarding GPC. For context, I am working with polymers. I would really appreciate any help! Also, if this is not the correct place, I would appreciate if you could point me to a better place to seek answers.

Why would you see something clearly show up on the light scattering detector but not in refractive index detector? (My sample is around 1500 g/mol with dn/dc ~ .15)
Why would you see a light scattering peak become narrower while the refractive index peak doesn’t change, both at the same elution time? (This was a comparison for my starting macromer and my star polymer made with my macromer)

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👤︎ u/dibbitydoop

📅︎ Apr 11 2021

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For larger FoV in augmented reality waveguides, glass with higher refractive index is needed laserfocusworld.com/optic…

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👤︎ u/AR_MR_XR

📅︎ Mar 24 2021

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Refractive Index of a material and material properties asrmeta.com/refractive-in…

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👤︎ u/wolfiota

📅︎ Jul 05 2021

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"Catculating the refractive index of water" taps gfycat.com/creepyboldgerm…

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👤︎ u/Sariel007

📅︎ Jul 13 2020

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Is there a table where diferent air refractive index values can be easily seen?

As you guys know dependering on pressure, temeperature, humidity the refractive index of air changes. Is there a table somewhere with the values at different conditions?

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👤︎ u/InformalAttempt9

📅︎ May 12 2021

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Schlieren Imaging — an incredible optical technique that lets you see air currents. This technique relies on a point source of light, a spherical concave mirror, a blade/color filter, and of course, a camera. It's able to discern subtle variations in the refractive index of air. v.redd.it/17kyuvzpjt561

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👤︎ u/rohanahuja

📅︎ Dec 17 2020

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Experiment demonstrating total internal reflection (TIR) of light inside glass. Angular scale is used to measure critical angle and determine refractive index of glass.

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👤︎ u/aloofloofah

📅︎ Apr 06 2021

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When your balls have the same refractive index as water

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👤︎ u/Dlatrex

📅︎ Apr 22 2019

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Oil with the same refractive index as glass causes it to disappear

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👤︎ u/MrDiou

📅︎ Oct 27 2020

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PLEASE HELP ASAP!! Refractive Index and Salinity of Water

Hi! I've been researching for quite a few days but haven't been able to find a relationship between the salinity (concentration of salt) of water and its refractive index (in the form of an equation.)

I'd really appreciate it if anyone could help me find an equation that represents the relationship between the both, I'm required to have a STRONG THEORETICAL FRAMEWORK for my work and this is imperative for that.

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👤︎ u/dyingibstudent312

📅︎ Apr 22 2021

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Clear orbeez have the same refractive index as water making them invisible when submerged.. v.redd.it/tzkghwp4tzj61

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👤︎ u/lowchan_r

📅︎ Feb 27 2021

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[A-level physics] what is the refractive index of the block?, i cant find a mark scheme on the internet

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👤︎ u/TheMemeThunder

📅︎ Jun 12 2021

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high and low refractive index resins for virtual and augmented reality — NTT AT youtu.be/3Eug2HwBKF8

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👤︎ u/AR_MR_XR

📅︎ May 28 2021

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negative refractive index

i was studying a chapter light in which i came across the refractive index . i wanna know if the refractive index of any object or material is negative , if yes then how and what properties we can predict of that object ? i also came across about meta materials but didn't understand it thoroughly. and by using this property (negative refractive index) can we come 1 step closer to invisibility?

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👤︎ u/BladeLock07

📅︎ Feb 18 2021

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