Glossary
A
archaeology the scientific study of material remains (as fossil relics, artifacts, and monuments) of past human life and activities.
E
equator the great circle of the celestial sphere whose plane is perpendicular to the axis of the earth.
M
meteorology a science that deals with the atmosphere and its phenomena and esp. with weather and weather forecasting.
missile an object (as a weapon) thrown or projected usu. so as to strike something at a distance <stones, artillery shells, bullets, and rockets are ~s>.
O
observatory a building or place given over to or equipped for observation of natural phenomena (as in astronomy).
Q
quasar any of a class of celestial objects that resemble stars but whose large redshift and apparent brightness imply extreme distance and huge energy output.
S
signal a detectable physical quantity or impulse (as a voltage, current, or magnetic field strength) by which messages or information can be transmitted.
Z
zoology a branch of biology concerned with the classification and the properties and vital phenomena of animals.