send signals
51Mars program — This article is about the Soviet program. For other Mars exploration programs, see Exploration of Mars. The Mars program was a series of unmanned spacecraft launched by the Soviet Union between 1960 and 1973. The spacecraft were intended to… …
52Dog communication — It is important to look at the dog s whole body and not just the mouth or tail before deciding what the dog is trying to communicate. What appears initially as aggression might be an invitation to play. Dog communication refers to body movements… …
53C-Leg — The C Leg is a microprocessor controlled knee prosthesis, developed by the Otto Bock Healthcare company, that enables moderately active amputees to vary walking speeds and travel over changes in terrain. The C Leg uses hydraulic cylinders to… …
54Muscle — For other uses of Muscle , see Muscle (disambiguation). A top down view of skeletal muscle Muscle (from Latin …
55List of Doctor Who items — This is a list of items from the BBC television series Doctor Who. Contents: Top · 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0–9 …
56Mars 3 — Orbiter Mars 3 Orbiter Operator  Soviet Union …
57Gymnotiformes — Temporal range: Late Jurassic–Recent …
58laser — /lay zeuhr/, n. Physics. a device that produces a nearly parallel, nearly monochromatic, and coherent beam of light by exciting atoms to a higher energy level and causing them to radiate their energy in phase. Also called optical maser. [1955 60; …
59building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …
60Ice-cream headache — Brain freeze redirects here. For the acute cognitive faltering due to stress, see Brain freeze (psychology). For the 1999 album, see Brainfreeze (album). For the book in the Otto Undercover series, see Otto Undercover. Ice cream headache… …
