adiabatic contraction
11Hot air engine — (historically simply air engine or caloric engine [cite book|author=Robert Sier|title=Hot air caloric and stirling engines. Vol.1, A history|edition=1st Edition (Revised)|publisher=L.A. Mair|year=1999|id=ISBN 0 9526417 0 4] ) is a catch all term… …
12igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …
13Pressure volume diagram — Thermodynamics …
14Thermodynamic temperature — is the absolute measure of temperature and is one of the principal parameters of thermodynamics. Thermodynamic temperature is an “absolute” scale because it is the measure of the fundamental property underlying temperature: its null or zero point …
15EcoCute — The EcoCute is an energy efficient heat pump that uses both electricity and heat extracted from the air to heat water for domestic use. Instead of the more conventional ammonia or haloalkane gases, EcoCute uses carbon dioxide as a refrigerant.… …
16Plate tectonics — The tectonic plates of the world were mapped in the second half of the 20th century …
17Cyclic model — Physical cosmology Universe · Big Bang …
18Cosmic inflation — In physical cosmology, cosmic inflation is the idea that the universe passed through a phase of exponential expansion that was driven by a negative pressure vacuum energy density. [Liddle and Lyth (2000) and Mukhanov (2005) are recent cosmology… …
19Dark matter — Not to be confused with antimatter, dark energy, dark fluid or dark flow. For other uses, see Dark Matter (disambiguation) …
20Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun …
