Emit++in+straight+lines
21Kepler problem in general relativity — The Kepler problem in general relativity involves solving for the motion of two spherical bodies interacting with one another by gravitation, as described by the theory of general relativity.Typically, and in this article, one body is assumed to… …
22History of scientific method — The history of scientific method is inseparable from the history of science itself. The development and elaboration of rules for scientific reasoning and investigation has not been straightforward; scientific method has been the subject of… …
23ray — I [[t]reɪ[/t]] n. 1) a narrow beam of light 2) a slight manifestation: a ray of hope[/ex] 3) radiance 4) opt phs opt a) any of the lines or streams in which light appears to radiate from a luminous body b) the straight line normal to the wave… …
24String theory — This article is about the branch of theoretical physics. For other uses, see String theory (disambiguation). String theory …
25ray — I. /reɪ / (say ray) noun 1. a narrow beam of light. 2. a gleam, or slight manifestation, of intelligence, comfort, etc.: a ray of hope. 3. a ray like line or stretch of something. 4. Poetic light or radiance. 5. a line of sight. 6. Physics a. any …
26radiate — I. v. n. 1. Shine, gleam, emit rays, beam, glitter. 2. Issue in rays, emanate in rays. 3. Emit heat, throw off heat, be radiant. II. v. a. Emit (heat or light) in straight lines. III. a. 1 …
27Radio — is the transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of… …
28Interference (wave propagation) — Two point interference in a ripple tank. In physics, interference is the phenomenon in which two waves superpose each other to form a resultant wave of greater or lower amplitude. Interference usually refers to the interaction of waves that are… …
29William Crookes — Infobox Scientist name = Sir William Crookes birth date = birth date|1832|6|17|df=y birth place = London, England death date = death date and age|1919|4|4|1832|6|17|df=y death place = London, England nationality = England field = Physical… …
30Ionizing radiation — consists of highly energetic particles or waves that can detach (ionize) at least one electron from an atom or molecule. Ionizing ability depends on the energy of the impinging individual particles or waves, and not on their number. A large flood …
