The bright markings are "faculae" (plural of facula). However, I wouldn't say that they produce the grainy texture. I think the "granulation" is there even without the faculae.
A grainy feel refers to a texture that is rough or coarse, often resembling the texture of grains like sand or sugar. It can be perceived through touch, such as when handling a gritty substance or feeling a surface that is not smooth.
Chromatin- granular material visible within the nucleus
A brick typically has a rough and coarse texture due to its coarse surface and grainy feel. It is solid and dense, with a slightly gritty feel when touched.
I am pretty sure grainy rocks because they are more common than crystals. They are more likely to contain sea creature fossils. They are likely to have sea creature fossils in them because the land we stand on now, was once covered in water.
Grainy rocks tend to have more air spaces compared to crystal rocks. This is because grainy rocks are composed of loosely packed grains, allowing for more air to be trapped between the particles. Crystal rocks, on the other hand, have a more tightly packed crystalline structure with little to no space for air.
The grainy appearance of the sun's surface, known as granulation, is caused by the convective motion of gases below the surface. Rising hot plasma carries energy to the surface, creating bright granules, while cooler plasma sinks back down, creating darker areas. This continuous churning process gives the sun's surface a granular texture.
Raw photos may appear grainy because they capture more detail and information from the camera sensor, including noise and imperfections. This can result in a grainy or textured appearance in the image.
The surface of the sun is not actually grainy but i will give you a little insight into why it looks like that. If you have ever lit a large fire and let is burn down a little, when you look at the embers or deeper into the fire, you can see different colours, ranging from white through yellow, orange, red to black with varying degrees and shades. The Sun is similar to this but on a much more massive scale, when a snap shot is taken its looks grainy because of all the variations, but if you saw a motions movie of the suns surface it is an undulating mass of colours.Look at the related source videos and links below for comparison.
A rock's surface may feel rough or smooth, depending on the type of rock. It can also be grainy, uneven, or pitted with indentations. The appearance of a rock's surface can be shiny, dull, colorful, or patterned, based on its mineral content and how it was formed.
The grainy texture on the sun's surface produced by numerous bright markings is called granulation. These granules are the tops of convection cells, where hot plasma rises and cooler plasma sinks in the sun's outer layer.
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Under a microscope, the endoplasmic reticulum (ER) with ribosomes appears as a rough, grainy appearance due to the presence of ribosomes on its surface. This rough appearance distinguishes it from smooth ER, which lacks ribosomes. The ribosomes on the rough ER are involved in protein synthesis, giving the ER its characteristic appearance.
A term that describes a background with a grainy, non-smooth surface is "textured background." This texture can give a sense of depth and interest to the background, adding visual appeal to designs or images.
A grainy feel refers to a texture that is rough or coarse, often resembling the texture of grains like sand or sugar. It can be perceived through touch, such as when handling a gritty substance or feeling a surface that is not smooth.
Wrought iron is ferrous because it contains predominantly iron, with a small amount of slag that gives it its unique grainy appearance.
Grainy rocks not only absorbs water better than crystal rocks, but it filters the water as well.
Coquina is a type of sedimentary rock that has a grainy texture due to its composition of fragmented shell and coral particles cemented together. The rock is porous and lightweight, often used in construction and landscaping for its unique appearance and texture.