No, the closest we have gotten is 99.9% using special coatings like the ones on eyeglasses. These will only reflect specific wavelengths in a lab setting. In comparison the aluminum mirror in your bathroom will have between 85 -90% efficiency. (Even if you kept it completely clean) A high quality silver mirror can achieve 95% efficiency. The rest will either be absorbed by the metal or refracted by imperfections in the glass or metal.
It is theoretically not possible to create a 100 percent effective mirror due to the fact that visible light is a relatively wide spectrum that will behave differently at either end. (Blue light will be reflected slightly differently than red light etc.)
Mirrors exist as a result of the reflection of light. When light hits a smooth surface, such as glass, it bounces off in a way that produces a clear reflection of what is in front of it. This phenomenon is what allows mirrors to reflect images back to us.
X-ray vision does not exist in real life. It is a fictional ability often seen in comic books and movies.
Mediums are made of molecules. Actually, we're all made of molecules whether we are mediums or not. We require molecules to breath, to drink, to eat, and to exist. Psychic ability has no bearing on one's need for molecules.
Reality refers to the state of things as they actually exist, rather than as they may be perceived or thought to be. It encompasses the physical world, events, and experiences that are tangible and verifiable.
In popular culture, ghosts are often depicted as transparent or semi-transparent beings. However, there is no scientific evidence to suggest that ghosts actually exist, so their appearance and characteristics are purely based on folklore and fictional portrayals.
In a PERFECT System with Perfect Mirrors reflecting 100% of the Energy that strikes it....two parallel mirrors will reflect light striking it at 90 degrees to their surfaces an INFINITE number of times. Of course that System does not exist. Mirrors are NOT 100% Reflective. It is impossible to make two flat objects Perfectly Parallel, and Introducing a Perfectly Perpendicular Light Beam into the System is NOT Possible either.
The Mirror of Erised and the two-way mirrors are not real things.
Mirrors exist as a result of the reflection of light. When light hits a smooth surface, such as glass, it bounces off in a way that produces a clear reflection of what is in front of it. This phenomenon is what allows mirrors to reflect images back to us.
They do not exist.
Actually quarks can exist freely.
No
Yes.
Herobrine doesn't exist,he is actually a Creepy Pasta
There was about 76 percent but now there is only about 20 percent.
If you're asking about positions, then yes. As a violinist of over 10 years, I use various positions in every piece I play.
Probably even lower than 0.1. Albedo is a measure of the reflectiveness of an object; perfectly reflective would be 1.0, while a perfect absorber of light would be 0.0. (Neither such objects actually exist, but some come close.)
No