to gain velocity
71List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …
72Space colonization — Artist Les Bossinas 1989 concept of Mars mission Space colonization (also called space settlement, space humanization, or space habitation) is the concept of permanent human habitation outside of Earth. Although hypothetical at the present time,… …
73Klystron — A klystron is a specialized linear beam vacuum tube (evacuated electron tube). Klystrons are used as amplifiers at microwave and radio frequencies to produce both low power reference signals for superheterodyne radar receivers and to produce high …
74radiation measurement — ▪ technology Introduction technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement. The term ionizing radiation refers to those… …
75STS-61 — Infobox Space mission mission name = STS 61 insignia = Sts 61 patch.png shuttle = Endeavour launch pad = 39 B launch = 2 December, 1993, 4:26 a.m. landing = 13 December, 1993, 12:26.25 a.m. EST, Runway 33, KSC duration = 10 d 19 h 58 min 37 s… …
76Cruis'n — Box art for the Nintendo 64 version of Cruis n USA, the first game in the series Developer(s) Midway Games …
77AZUSA — refers to a ground based radar tracking system installed at Cape Canaveral, Florida and the NASA Kennedy Space Center. AZUSA dated back to the early 1950s and was named after the southern California town (Azusa, California) where the system was… …
78Medical ultrasonography — This article is about using ultrasound to image the human body. For imaging of animals in research, see Preclinical imaging. Sonography redirects here. For the tactile alphabet called sonography , see Night writing. Medical ultrasonography… …
79Physical oceanography — World ocean bathymetry. Physical oceanography is the study of physical conditions and physical processes within the ocean, especially the motions and physical properties of ocean waters. Physical oceanography is one of several sub domains into… …
80Fermi acceleration — Fermi acceleration, sometimes referred to diffusive shock acceleration (a subclass of Fermi acceleration), is the acceleration that charged particles undergo when reflected by a magnetic mirror. This is thought to be the primary mechanism by… …
