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Some examples of glow-in-the-dark materials do not glow by phosphorescence. For example, glow sticks glow due to a chemiluminescent process which is commonly mistaken for phosphorescence. In chemiluminescence, an excited state is created via a chemical reaction.
Syenite pebbles, containing fluorescent sodalite, were moved from Canada to Michigan by glaciers; [5] these glacial erratic pebbles have been given the trade name "yooperlite". [6] In other parts of the world, these types of rocks are known as sodalite-syenite and occur in Canada, India, other US states, Greenland, Malawi, and Russia. [citation ...
Radioluminescent paint is a self-luminous paint that consists of a small amount of a radioactive isotope (radionuclide) mixed with a radioluminescent phosphor chemical. The radioisotope continually decays, emitting radiation particles which strike molecules of the phosphor, exciting them to emit visible light.
Both attempts to create a more usable Linux desktop attracted volunteers to make utilities to that end. These programs included games, mostly recreations of small games like Minesweeper or Solitaire that come with Microsoft Windows, arcade classics and the like, games from combined sets such as Microsoft Entertainment Pack , and occasionally ...
A creeper is a fictional creature in the sandbox video game Minecraft.Creepers are hostile mobs (mobile non-player characters) that spawn in dark places.Instead of attacking the player directly, they creep up on the player and explode, destroying blocks in the surrounding area and potentially hurting or killing the player if they are within the blast radius.
Foxfire, also called fairy fire and chimpanzee fire, [1] is the bioluminescence created by some species of fungi present in decaying wood. The bluish-green glow is attributed to a luciferase, an oxidative enzyme, which emits light as it reacts with a luciferin.
Bioluminescent bacteria have evolved symbiotic relationships with other organisms in which both participants benefit each other equally. [2] Bacteria also use luminescence reaction for quorum sensing , an ability to regulate gene expression in response to bacterial cell density.
It is suggested that many firefly larvae glow to repel predators; some millipedes glow for the same purpose. [59] Some marine organisms are believed to emit light for a similar reason. These include scale worms , jellyfish and brittle stars but further research is needed to fully establish the function of the luminescence.