calculated or determined according to technique of progression. To move forward or toward a place or goal.

length of cloth or enveloping garment in which dead person is wrapped for burial. To hide, as with secrecy; make it difficult to see.

Gathering of people to discuss something. To come together at a certain time or place.

material thing. Some things you can see or touch, but is not alive. express disagreement.

Thing, person which represents a category. be illustrated or exemplified.

(of electromagnetic radiation) having wavelength just greater than that of red end of visible light spectrum. infrared region of spectrum.

Used to add new (often different) information.

To release or send out (a gas, etc.).

expert in or student of astronomy. Scientist studying stars and other bodies in space.

optical instrument designed to make distant objects appear nearer, containing arrangement of lenses, or of curved mirrors and lenses. slide or cause to slide into itself, so that it becomes smaller.

star that suddenly increases greatly in brightness because of catastrophic explosion that ejects most of its mass.

for reason that.

person who carries out academic or scientific research. People who work to find new facts and ideas.

distance between successive crests of wave. Be on the same wavelength to have similar feelings.

Taking your attention; making you want to know. To persuade to do, become involved with something.