Browse Reference Articles
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Fingerprint
A fingerprint is an impression of the friction ridges of all or any part of the finger. A friction ridge is a raised portion of the epidermis on the palmar (palm and fingers) or plantar (sole and ... > more -
Distributed generation
Distributed generation is a new trend in the generation of heat and electrical power. The concept permits the "consumer", who is generating heat or electricity for their own needs, to send their ... > more -
Global warming
Global warming refers to the increase in the average temperature of the Earth's near-surface air and oceans in recent decades and its projected continuation. The global average air temperature ... > more -
Shock wave
In a supersonic flow the compression of a nonreacting gas can be most simply modelled as an isentropic or Prandtl-Meyer compression, or as a shock wave. When an object (or disturbance) moves faster ... > more -
Nanorobotics
Nanorobotics is the technology of creating machines or robots at or close to the scale of a nanometre (10-9 metres). More specifically, nanorobotics refers to the still largely theoretical ... > more -
Constructal theory
The constructal theory of global optimization under local constraints explains in a simple manner the shapes that arise in nature. It is the thought that flow architecture comes from a principle of ... > more -
Jet engine
A jet engine is any engine that accelerates and discharges a fast moving jet of fluid to generate thrust in accordance with Newton's third law of ... > more -
Chemical warfare
Chemical warfare is warfare using the toxic properties of chemical substances to kill, injure or incapacitate an enemy. About 70 different chemicals have been used or stockpiled as Chemical Weapons ... > more
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