Information about Striations
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Gustavo Badell posing; note the regular, parallel striations of the pectoral muscles of the chest.
Bodybuilding
In bodybuilding, striations are the tiny grooves of muscle across major muscle groups characteristic of a well-developed body. Chest striations are expected at low level competition, as they are indicative of muscularity and low body fat, whereas a "Christmas tree" in the lower back and striations in the glutes are expected at top level competition.Standard bodybuilding textbooks recommend a number of techniques for developing striations, which include limiting calorific intake, spot-training, and training to failure on a wide variety of exercises for the relevant body part.
Geologic uses
In geology, glacial striations are grooves or lines inscribed on the surface of a rock, produced by a geological process such as glacial flow. Other erosional processes can also create striations for example: mass movement, water torrents, and faulting. The striations usually occur in a group of roughly parallel lines.In mineralogy striations are thin parallel lines (often microscopic) present in a mineral due to crystal twinning.
Fractography
In fractography, fatigue striations are thin parallel lines (microscopic) present in a material due to fatigue cracking. The thin parallel lines that can be seen macroscopically are called "beachmarks".Shelton striations are thin parallel lines observed on the fracture surfaces of materials caused by mechanical damage (usually due to rubbing between opposing fracture surfaces). They can be confused with fatigue striations.
Bodybuilding is the process of maximizing muscle hypertrophy through the combination of weight training, sufficient caloric intake, and rest. Someone who engages in this activity is referred to as a bodybuilder.
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MUSCLE (multiple sequence comparison by log-expectation) is public domain, multiple sequence alignment software for protein and nucleotide sequences.
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adipose tissue or fat is loose connective tissue composed of adipocytes. Its main role is to store energy in the form of fat, although it also cushions and insulates the body.
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In weight training, training to failure is to repeat an exercise movement (such as the bench press) to the point of momentary muscular failure. Contrary to widespread belief, this is not the point at which the individual thinks they cannot complete any more repetitions, but rather
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Oceanic crust 0-20 Ma
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Glacial striations or glacial grooves are scratches or gouges cut into bedrock by process of glacial abrasion. Glacial striations usually occur as multiple straight, parallel grooves representing the movement of the sediment-loaded base of the glacier.
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Many now-familiar glacial landforms were created by the movement of huge sheets of ice called continental glaciers during the Pleistocene Epoch (more commonly called the Ice Age.
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Erosion is displacement of solids (soil, mud, rock and other particles) usually by the agents of currents such as, wind, water, or ice by downward or down-slope movement in response to gravity or by living organisms (in the case of bioerosion).
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fault or fault line is a planar rock fracture, which shows evidence of relative movement. Large faults within the Earth's crust are the result of shear motion and active fault zones are the causal locations of most earthquakes.
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Mineralogy is an Earth Science focused around the chemistry, crystal structure, and physical (including optical) properties of minerals. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical
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A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition, a highly ordered atomic structure and specific physical properties.
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Crystal twinning occurs when two separate crystals share some of the same crystal lattice points in a symmetrical manner. The result is an intergrowth of two separate crystals in a variety of specific configurations. A twin boundary or composition surface separates the two crystals.
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Fractography is the study of fracture surfaces of materials to determine the cause of failure. The method is used to study fracture surfaces in any material, such as metals, ceramics, glasses and polymers.
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Materials are physical substances used as inputs to production or manufacturing. Materials range from man made synthetics such as many plastics to natural materials such as copper or wood.
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Metal fatigue redirects here. For the computer game, see Metal Fatigue.
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Mechanical failure modes
Buckling
Corrosion
Creep
Fatigue
Fracture
Melting
Thermal shock
Wear
Yielding
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