Mindblown: a blog about philosophy.
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Mechanical equivalent of heat
The value of heat units in terms of work units. One Calorie (kilocalorie) is equal to 4.1855 X 104 joules.
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Luminous heat
Heat derived from light. This form may be tolerated better than other forms of radiation. Light may be converted into heat. Short infrared rays penetrate subcutaneous tissues to a greater extent than long invisible rays.
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Initial heat
Muscular heat produced during contraction when tension is increasing, during maintenance of tension, and during relaxation when tension is diminishing.
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Heart of evaporation
The heat absorbed per unit of mass when a substance is converted from a liquid to a gas, such as the change of water to steam when it is heated sufficiently. For water, the amount of heat required to transform water into steam is 540 cal/g of water.
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Dry heat
Heat that has no moisture. It may take the form of a hot dry pack, hot water bottle, electric light bath, heliotherapy, hot bricks, resistance coil, electric pad or blanket, hot air bath, or therapeutic lamp.
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Convective heat
The flow of heat to an object or part of the body by passage of heated particles, gas, or liquid from the heat source to the colder body.
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Conductive heat
Heat transferred by conduction from a heat source to a colder object when the two materials are in contact with each other.
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Application of heat
Placing an object, warmed above body temperature, on a body part to increase blood flow or provide relief of pain.
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Acclimatization to heat
The adjustment of an organism to heat in the environment. Exposure to high environmental temperature requires a period of adjustment in order for the body to function efficiently. The amount of time required depends on the temperature, humidity, and duration of daily exposure. Significant physiological adjustments occur in 5 days and are completed within 2…
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Heart size
The dimensions of the cardiac image as seen on radiographs, echocardiographs, computed tomography, angiography, or magnetic resonance imaging of the thorax.
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