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Where is the groin area?

A groin strain involves a partial or complete tear in the adductor muscles, according to Mount Sinai Hospital. These muscles begin in the groin area and continue down the inner thighs. Some causes of a groin strain are overuse or receiving a blow to the adductor muscles. It is a common type of sports injury, and treatment is dependent on its severity.\nThe causes of groin pain are varied, including kidney stones, injuries and urinary tract infections. Similarly, groin pain in women and men can have different causes. For example, a man may experience groin pain due to prostatitis while a woman..

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How does invisible ink work?

While soap-based ink is invisible when dried on paper, showing it in front of UV light causes it to show color. When looking at the ink with light of a lower wavelength, such as UV light, the ink glows. On the other hand, when the pH indicator phenolphthalein is used as invisible ink on paper, it is originally colorless. However, on addition of a basic solution such as ammonia, it turns pink and becomes visible.

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What is Darcy's law?

The equation demonstrates that the amount of flow a fluid has between two points shares a directly proportional relationship to the distance between the two points, the pressure difference between the two points and the permeability of the flow paths in the rock. Darcy's law is only valid when the fluid's flow is slow and viscous. This law is useful in earth sciences because most groundwater flow is slow and viscous.

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How does petroleum work?

Petroleum forms when decaying organic materials are trapped in layers of sediment. Decomposers remove most of the oxygen, nitrogen and phosphorus, leaving mostly carbon and hydrogen. Over time, heat and pressure work on the remains to fuse the carbon and hydrogen into chains called hydrocarbons. These molecules store energy in their bonds that can be released when the petroleum is burned.\nWhen discovered, petroleum is classified according to its composition. "Light" petroleum is less dense, while "heavy" petroleum is much thicker and requires more refining to produce gasoline and other light ..

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How Does the Angle of a Ramp Affect Speed?

When the ramp inclines toward the direction of the pull of gravity, an object on the ramp rolls at an acceleration that nears the full force, according to For Dummies. Any object on or near the surface of the earth experiences a constant pull of gravity that is directed straight down. When the object is on a ramp, it does not experience the full straight-down pull of gravity. As Education.com explains, experiments on a ramp do not measure acceleration of gravity, which is typically measured as 9.81 m/s^2.\nAs The Physics Classroom explains, a tilted surface is defined as an inclined plane in p..

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Where can you find an animated video of mitosis?

Videos of cellular processes are often a good educational tool to help individuals understand things that happening on a microscopic level. Mitosis is the process in a cell in which chromosomes in the cell nucleus break apart into two identical chromosomes.The seven events that happen during mitosisare interphase, prophase, prometaphase, metaphase, anaphase, telophase and cytokinesis, according to the Cells Alive webpage. The animation on this page shows actual footage of cells undergoing mitosis, as well as an animation of what is actually happening within the cell. It also allows for interac..

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What are the components of the cervical spine?

The spinal cord is a complex of nerves that emerges from the brain and extends almost to the end of the lumbar spine in the small of the back, claims Spine-health. The cervical spine also supports the head and allows for its great range of movement. It works in conjunction with muscles, ligaments, tendons and joints to do this. The first two vertebrae in the cervical spine are responsible for the head's ability to move from side to side, or its rotation. Vertebrae C5 to C7 are responsible for the head's ability to move backwards and forwards.\nThe vertebrae in the cervical spine grow..

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What is the chemical formula for rust?

Rusting occurs as the corrosion of iron in the alloy steel. Steel is an alloy made of iron and carbon. Although the carbon atoms in steel increase the strength of the metal, it is the carbon atoms that decrease the ability of iron to resist corrosion. Steel loses its metallic properties in the presence of oxygen and water due to oxidation and produces reddish brown flakes that loosely adhere to the iron.

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What is the capacity of a human stomach?

The actual capacity of the human stomach greatly depends on its geometry, which is influenced by the body position, the condition of surrounding organs and the type of food eaten, the NCBI further explains. According to the Physics Factbook, the stomach can reach the maximum capacity of 2 to 4 L with huge meals or overeating.

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How do you build a composite volcano?

Prepare the surfacePut newspapers over the work surface. Flatten the cardboard box, and set it on top of the cookie sheet, cutting the box to fit the sheet's size. Cut a larger opening at the top of the plastic bottle. Cut the opening at an angle to create a better view of the fake lava. Glue the bottle to the center of the cardboard, and let it dry. Make the lava Pour half a cup of vinegar into the bottle, followed by a few drops of dish washing liquid, a dash of glitter and enough red food coloring to turn the mixture bright red. Stir these together. Mold the clay Starting at the base, ..

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