Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia.
Related to Ranger: forest ranger, S10


(rayn -jer) An American space program, originally intended to hard-land instruments on the lunar surface but upgraded in 1963 into purely photographic missions. The first five Ranger craft were launched between August 1961 and October 1962. Ranger 6, launched Jan. 30 1964, reached its target but suffered camera malfunction. The last three – Rangers 7, 8, and 9 – were launched on July 28 1964, Feb. 17 1965, and Mar. 21 1965. They obtained the first close-ups of the Moon, revealing the existence of boulders and meter-sized craters in the regolith: over 4300, 7100, and 5800 photographs were transmitted by Rangers 7, 8, and 9 respectively, leading to a great advance in our knowledge of the Moon. See also Luna probes; Lunar Orbiter probes; Surveyor; zond probes.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the name of a series of American spacecraft for lunar exploration (with the exception of Rangers 1 and 2, which were put into geocentric orbits and were designed to test onboard systems) and of the program for developing and launching these spacecraft (1959–65). The spacecraft were launched by Atlas-Agena Blaunch vehicles, with the exception of Ranger 8, which was launched by an Atlas-Agena D.

Rangers 3, 4, and 5 were similar in design and had six television cameras. The flight objectives were to obtain television pictures of the lunar surface, to conduct radar scanning of the moon and study the characteristics of lunar rocks using a gamma-ray spectrometer, and to accomplish a semisoft landing with an instrument package containing a seismometer. No soft landing on the moon was envisioned. After the unsuccessful flights of Rangers 3, 4, and 5, succeeding craft were modified, and two sets of three television cameras each were installed in place of the lunar capsule. The television equipment on Ranger 6 malfunctioned, and no pictures were made. During the lunar approaches of Rangers 7, 8, and 9, more than 17,000 photographs of the lunar surface were taken in the regions of Mare Cognitum, Mare Tranquillitatis, and the crater Alphonsus.

The maximum diameter of all Ranger spacecraft was 1.52 m, the height was 2.52 m with antenna and solar panels stowed and 3.12 m with the equipment extended, and the maximum cross-sectional dimension was 5.18 m; the weight was between 306 and 367 kg. The power supply system included solar cells and silver-zinc batteries, and the vernier engine installation operated on monopropellant fuel.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

wale, waler, whaler

A horizontal timber or beam used to brace or support an upright member, as sheeting, formwork for concrete, etc. (See illustration p. 1052.)
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
He said he was impressed by Chief Warrant Officer Blackbird's knowledge of plants after hearing her instructing Junior Rangers in aboriginal uses of plants found in the bush.
It's serious work, but the nation's major newspapers are assigning reporters to the job who are awed that Rangers are organized in rifle companies.
Instead of heading straight back to their base with their detainees in a ground convoy, the 100-odd Rangers and Delta commandos were forced to hunker down around the first crash site, as Aidid's forces converged on them from across the city.
The nearby Brandywine Lake campground, operated by the Dry River Ranger District of George Washington National Forest, is a fine place to bed down "amid the culture." It has 30 sites at a bargain price of $7 per night, swimming in the lake, and a fine eastern hardwood-bedecked hiking trail (703/828-2591).
Will park rangers catch up with the criminals before it's too late?
The Power Rangers are back, and the five superheroes are donned with a sturdy suit and chaperoned by their Dinozords.
After the development Sindh Government has issued two notifications in which ambiguity about the power of rangers has been removed.
Ranger students should also practice the 26 basic infantry tasks and gain overall leadership experience outside the school environment.
This toy blueprint coincides with the release of the rousing 'Power Rangers' reboot starring Bryan Cranston, Naomi Scott and Elizabeth Banks.
Ranger will now be able to support its customer base across the most prolific liquids-rich basins in the US with a fleet of 70 high-specification workover rigs.
The Special Operations Training Detachment (SOTD) at the Joint Readiness Training Center (JRTC), Fort Polk, La., provides relevant and realistic training for Special Operations Forces (SOF), including the 75th Ranger Regiment.
Lionsgate and Saban Brands announced that a new "Power Rangers" movie is already on the talk and will be shown in the big screen.