Search results
Results From The WOW.Com Content Network
Pitting corrosion, or pitting, is a form of extremely localized corrosion that leads to the random creation of small holes in metal. The driving power for pitting corrosion is the depassivation of a small area, which becomes anodic (oxidation reaction) while an unknown but potentially vast area becomes cathodic (reduction reaction), leading to ...
Pitted keratolysis (also known as keratolysis plantare sulcatum, [1] keratoma plantare sulcatum, [1] and ringed keratolysis [1]) is a bacterial skin infection of the foot. [2] The infection is characterized by craterlike pits on the sole of the feet and toes, particularly weight-bearing areas.
Cupstones, also called anvil stones, pitted cobbles and nutting stones, among other names, are roughly discoidal or amorphous groundstone artifacts among the most common lithic remains of Native American culture, especially in the Midwestern United States, in Early Archaic contexts.
PIT maneuver diagram (animated GIF image) California Highway Patrol cruisers using a PIT maneuver to disable a fleeing vehicle The PIT maneuver (precision immobilization technique [1]), also known as TVI (tactical vehicle intervention), is a law enforcement pursuit tactic in which a pursuing vehicle forces another vehicle to turn sideways abruptly, causing the driver to lose control and stop. [2]
Fretting damage in steel can be identified by the presence of a pitted surface and fine 'red' iron oxide dust resembling cocoa powder. Strictly this debris is not 'rust' as its production requires no water.
A ventifact (also wind-faceted stone, windkanter [1]) is a rock that has been abraded, pitted, etched, grooved, or polished by wind-driven sand or ice crystals. [2] The word “Ventifact” is derived from the Latin word “Ventus” meaning ‘wind’.
Vesicular texture is a volcanic rock texture characterized by a rock being pitted with many cavities (known as vesicles) at its surface and inside. [1] This texture is common in aphanitic, or glassy, igneous rocks that have come to the surface of the Earth, a process known as extrusion. As magma rises to the surface the pressure on it decreases ...
Pit lane at Pocono Raceway In any racing series that permits scheduled pit stops, pit strategy becomes one of the most important features of the race; this is because a race car travelling at 100 miles per hour (160 kilometres per hour) will travel approximately 150 feet (45 metres) per second. During a ten-second pit stop, a car's competitors will gain approximately one-quarter-mile (450 ...