(receding)
61Radial velocity — is the velocity of an object in the direction of the line of sight (i.e. its speed straight towards you, or away from you). The light of an object with a substantial radial velocity will be subject to Doppler effect, so the frequency of the light …
62Astronomical spectroscopy — is the technique of spectroscopy used in astronomy. The object of study is the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other celestial objects. Spectroscopy can be used to derive many… …
63Peculiar velocity — In physical cosmology, the term peculiar velocity refers to the components of a receding galaxy s velocity that cannot be explained by Hubble s law.According to Hubble, and as verified by many astronomers, a galaxy is receding from us at a speed… …
64Surface energy — [ Contact angle measurements can be used to determine the surface energy of a material. Here, a drop of water on glass.] Surface energy quantifies the disruption of intermolecular bonds that occurs when a surface is created. In the physics of… …
65Substratum — In contact linguistics, a substratum (lat. sub : under + stratum : layer → lower layer ) is a language that influences another one while that second, intrusive, language supplants it. Similarly, a superstratum is an intrusive language that exerts …
66The Fly II — Theatrical release poster Directed by Chris Walas Produced by Steven Ch …
67Rosa Ponselle — Early lifeShe was born Rosa Ponzillo on January 22, 1897, in Meriden, Connecticut, the youngest of three children. Her parents were Italian Neapolitan immigrants. Rosa had an exceptionally mature voice at an early age and, at least in her early… …
68National Scenic Byway — Marker used for National Scenic Byways …
69Emission theory — (also called emitter theory ) was a competing theory for the special theory of relativity, explaining the results of the Michelson Morley experiment. Emission theories obey the principle of relativity by having no preferred frame for light… …
709K31 Strela-1 — Infobox Weapon name= 9K31 Strela 1 (NATO reporting name: SA 9 Gaskin) caption= 9K31 transporter erector launcher origin= flagcountry|Soviet Union type= Vehicle mounted SAM system is ranged= is bladed= is explosive= is artillery= is vehicle=yes is …
