Physics is the the study of matter and its spatial motion; while it embraces the levels of nucleii, elementary particles and atoms, its domain relative to molecules and their interactions is more properly termed chemistry. The motion of particles is governed by the basic laws of physics including Newtonian mechanics (for large objects); electromagnetism; thermodynamics and quantum mechanics (in the case of molecular and smaller entities). The earliest forms of physics addressed are motions of celestial objects, and presently this field can be viewed as astrophysics. Physics also embraces the notions of the Theory of Relativity, so that the duality of space and time is addressed. Chemistry has taken on added importance in the last half century as the bridge between fundamental laws of nature and the understanding of cellular processes and replication of DNA, the basic molecule of organism genetic coding.
The atmospheric lapse rate ( ) refers to the change of an atmospheric variable with a change of altitude, the variable being temperature unless specified...
Extraterrestrial soilsLast Updated on 2013-05-23 at 18:48
Extraterrestrial soils may be defined as any of the solid granular crustal features of planets and moon other than those soils on planet Earth. Despite four decades of space... More »
Redwood SorrelLast Updated on 2013-05-20 at 18:13
Redwood Sorrel (Oxalis oregana)
Redwood Sorrel is in the Oxalidaceae, the wood sorrel family, a relatively small family with three genera and 875 species of mostly tropical... More »
European Environmental AgencyLast Updated on 2013-05-15 at 16:30
The European Environment Agency (EEA) is an agency of the European Union (EU) established to function as a major source of information and data to be used in developing,... More »
Kara SeaLast Updated on 2013-05-14 at 14:13
The Kara Sea (alternatively, Karshoe More) is a saline marine body that is an element of the Arctic Ocean, situated north of the Siberian region of Russia.
Lying on the... More »
Sulu SeaLast Updated on 2013-05-13 at 23:04
The Sulu Sea is a tropical seawater body in the Malayan Archipelago of Southeast Asia.
It is partitioned from the South China Sea in the northwest by the Phillipines island... More »
Sea of MarmaraLast Updated on 2013-05-13 at 22:37
The Sea of Marmara (also Sea of Marmora and, in the context of classical antiquity, as the Propontis) is an inland brackish sea which connects the Black Sea to the Aegean... More »