Transparent Definition and 117 Threads

If there is a light source that is moving relative to an observer and both are inside water for example for an observer at rest relative to the source the emitted light will have a certain frequency,however for the other observer in relative motion the frequency will change and hence the...

Hi PF! Given the following: test = RevolutionPlot3D[t^4 - t^2, {t, 0, 1}, Background -> None] Export["test.eps", Rasterize[test, Background -> None]] The background is not transparent. Any idea how to do this? I've checked all over the internet, and nothing seems to work. Thanks for the...

Are there any materials that go from transparent to opaque when a bright light is shined on it? In particular I would like something that acts like a window until I project a movie onto it and then is opaque in the regions where the light hits it at certain levels of brightness.

Summary:: What is the advantage of transparent semiconductors such as Fluorine doped tin oxide over main semiconductors? What is the advantage of transparent semiconductors such as Fluorine doped tin oxide (FTO) and Indium tin oxide (ITO) over main semiconductors? Please explain the uses of...

Summary:: Is there a way to find the wavelength of a transparent medicine without adding a color to it? I have a transparent substance (medicine) . I cannot find out its wavelength without having to add color to it. However I don't want to change any of its characteristics. Is there a way to...

Hello, I am making a DIY UV-C germicidal box as part of my defense-in-depth strategy for protecting my household but I am having trouble determining whether a particular plate of glass that I have will be transparent to UV in the 250-280nm range. The glass in question is from a flatbed scanner...

If space is transparent how can we not view light from a black hole

Hi, after reading much interesting information on the subject I want to made a small project, the idea is to have a transparent plexiglass tube and a (diamagnetic?) material ball within the tube and to have permanent magnets outside the tube in such a way that I can suspend the ball so that it...

I was watching this video by Don Lincoln, one of the senior researchers at FermiLab, on the the reason light slows down in transparent media (air, water, glass, plastic, etc...). He explains that the photons excite the electrons in the medium, which in turn add to the wave (or at least that's...

I have read, heard and seen texts and youtube videos about the slowing down of light through matter, and also about why some materials are transparent. I am satisfied with the explanation of the slowing down of photons through matter, but not the explanation of why materials are transparent. I...

I am looking for an optical piece that can act as a mirror when the angle of incidence is close to normal (90 degrees) but acts as a see-through glass when the angle of incidence is less than 60 degrees? Alternatively it can be a filter placed in front of a mirror that passes a lot of light at...

Hi all, I think this is the right place to post this?! Material sciences.. Nonetheless, I am searching for a strong inflexible plastic, that is transparent. The principle job of the plastic is to be a long piece with a sensor attaching at the end. The sensor will weigh about 2kg, putting a...

Hi I want to make a infrared nonimaging concentrator, but since crystals needed for lenses are difficult to work with for an amateur, want to use liquids. I am interested in the 1-12 micron spectrum; what liquids could i use?

Hi. I need to know the name of the transparent glass which can display objects like Line, Circle, Numbers, or maybe my name. Thanks!

Need two transparent conductors in an arrangment like this on a transparent plastic film. Such as ITO on PET. But it doesn't have to be ITO necessarily. There are going to be much more fingers and size of the lanes and their gaps are going to be sub milimeter, so hand drawing is out of the...

Transparent solar technology represents 'wave of the future' https://www.sciencedaily.com/releases/2017/10/171023123526.htm Date: October 23, 2017 Source: Michigan State University Summary: See-through solar materials that can be applied to windows represent a massive source of untapped...

Every objects emit thermal radiation. Now consider this case: Sun emits waves in a certian electromagneic spectrum (UV + thermal radiation + ecc...); glass is transparent to thermal radiation that usually reach Earth's surface. UV and other radiations are mainly absorbed by Ozone and other...

Hi! Completely forgot about this great forum! I'm designing an electron spin resonance /electron paramagnetic resonance spectrometer, as an easier vacation from my diy NMR - while still utilizing much of the same setup. Issue is; I have an X-band (~12GHz) waveguide cavity in a magnet, and I...

Hi all, I'd like to know what is the most transparent material that;s waterproof, but not as brittle as glass. I want to put a "roofing" on a section in my balcony where I usually hang my clothes to dry and disinfect them under the sun, but I don't want to run all the way up everytime it rains...

Homework Statement a) Common transparent tape becomes charged when pulled from a dispenser. If one piece is placed above another, the repulsive force can be great enough to support the top piece’s weight. Assuming equal point charges (only an approximation), calculate the magnitude of the...

Hello Forum, I am new to 3D printing and wondering if any of you have been able to print transparent plastic object with 3D printing. It seems that translucency is the best that we can get. Is that true? Are today's affordable 3D printer still only work with PLA and ABS or are there other more...

Is there a material that changes from transparent to a pure white, ideally with reflective ability. Smart glass almost does this but falls short on it but being white enough (and not reflective).

So I admittedly was a former cocaine user. I've since cleaned up and am back in school and my life is going in the right direction for once. I took a class in organic chemistry this previous semester and we did a lab on recrystallization. I think it was boric acid that I recrystallized, but I...

I am a high school student replicating the Faraday Effect. I'm using cuvettes to fill with liquids and air to test the polarization of light. I found cuvettes such as these: The problem is the cap. The cuvettes are to be inserted inside of a solenoid, so the only possible way for them to be...

Among thin plastics, sheets and films, that are highly transparent to visible light, which are also best at reflecting or absorbing IR heat? Are there any spray coatings to enhance a clear plastic surface reflecting even more IR without significantly degrading transparency to visible light...

The water looks transparent, but when the water hit the stone, it looks as if it turns white? Why?

More specifically, if I have a 100 degree F hot rock in an insulated box with reflective sides and I want it to radiate it's heat away to cooler outer space at night through its open top, what type of material or film could I cover the box with that would assure no air passed in or out, but that...

Hi, Is there any optical sheet or film which is transparent to object only if the object is touching or extremely near to the sheet otherwise it acts as opaque sheet? For example, If we look through a transparent glass window of an apartment, from a distance in day light, we can’t see what or...

So in glass, transparent liquids, and plastics is the eV for the electron known to science. The eV levels for electrons in gases are known like in hydrogen, and helium, but are they known for glass, and transparent liquids, and plastics. Or is it just too discernable to get. I am grateful for...

- liquids, and plastics for light to transmission completely through the material. Is this eV level known in glass, liquid, and transparent plastics, for electrons to transmission light. Physicists say that "In most solid or liquid substances, the electron structure is so complex that...

Hello everyone, I was just wondering if there is any type of transparent ink that could be permanently activated by heat or intense light (laser). Preferably I am planning to use a laser light to activate the ink. I am trying to coat a piece of metal (or paper or etc.) with this ink (which is...

I used a function called ind2patch to make a big 3D block which contains a number of smaller blocks in 3 dimensions. Each small block has a value which the magnitude is represented by a color.One example is shown below: However, most of the boxes have very low or zero value and I don't need to...

Greetings all, I am quite new to this forum so please forgive me if this is on the wrong thread. I recently purchased some reflective paint which sprays on clear and appears white/silver once light hits it at night. However I am looking for a type of paint that is invisible to the naked eye...

-the electrons to the same shell levels of glass as the microwaves pass through and heat the material, or move electrons in a opaque material to the same energy levels, or shell levels of glass, and transparent liquids, and some plastics. In a microwave the waves traverse food, and heat the food...

So I've heard from multiple sources that one explanation for why light slows down whilst traveling through mediums other than a vacuum is that the light "takes every possible path at the same time" through the medium. Below I've drawn my two possible interpretations of what that means. Can...

How can a electrons energy levels increase, and decrease in eV As atoms come together to form molecules the energy levels of electrons change in eV, but are there other ways a electrons eV can change. Can heating a material change the electrons eV level, when visible light hits the electrons...

... same energy levels of electrons as in glass. What would it take to change the eV levels of the electrons in the solid opaque matter, to the same energy levels of the electrons in glass. There is nothing necessarily special about glass, it is just a combination of silicon, sodium, and...

Can the Kerr effect have a effect on absorption, and transmission, of the electron.? Also is there any way to make electrons move to higher shell levels, without the electrons getting excited by light, and moving to higher Shell's. Or is light absorption the only way for electrons to move to...

What is it about the em waves that get absorbed by electrons compared to em waves that traverse solid material.What is it about that wavelength, or frequency of light, and other em waves that get absorbed by electrons, that makes visible light get absorbed by electrons. Why that specific...

Does anyone know of any optically transparent (and preferably thin) piezoelectric materials I could use for a science fair project converting pressure on the glass of touch screens to electrical energy?

Hi everybody. I had a discussion on another (engineers') forum about the "lower than c" speed of light inside a transparent material (e.g. glass). The explanation that I gave is that the reduction of the light's speed inside such a material is only "apparent" and not "real". The incident photons...

How does light interact, and travel through Solid matter as matter gets thicker, in width.?In the absorbion, and emission process of light, hitting electrons, I do not really understand that much, about electron energy levels, and how they change when a lot of atoms become molecules, and them...

-ion process. The electron when hit by light moves to a higher shell level very briefly, to either shell 1, or 2 depending on the energy of the light wavelength. So because you mixed any EM radiation, with red light which has the lowest energy, could when light, or other EM waves gets absorbed...

If you raise the electron to other higher shell states, can light transmission throug -h a SOLID BLACK opaque object. Modified the original question because it was unclear. I won't repeat the same question over, and over, but what I have said in previous questions may get repeated in the...

-iation. Could the opacity of a material to one band of EM radiation (light) could be altered by irradiating the material with another band of EM radiation (X rays)? I think you are suggesting that: By raising the electrons in the atoms to higher energy bands (with the X rays), so that they will...

umm well that's about it

Is there any real-world material that is both reflective and transparent in 3D? A simple plane of glass is 3D and transparent, but reflective only in two 2D planes. I'm looking for something that is reflective in a large number of parallel 2D planes so that the reflection has depth. How...

Why is a smooth clean piece of glass transparent but not invisible?

First allow me to apologize should this thread be in the wrong forum, I am not entirely sure whether Quantum Physics is the right one. I am also unaware of the exact level to which this question belongs, which is why I went for intermediate. Please inform me if this should be changed to...

All the scifi geeks will get this yet again scifi becomes reality http://www.bdcnetwork.com/us-naval-research-lab-develops-transparent-aluminum?eid=223056823&bid=1229250 just a little hint :wink: ...Transparent aluminum ? ... that's the ticket laddie ... it would take year just to figure...