While over the far side of the Moon, the Command / Service Module's Service Propulsion System engine burned for six minutes and fifteen seconds, braking the spacecraft into an orbit around the Moon with a low point ( pericynthion ) of 58. 3 and a high point ( apocynthion ) of 170. 4 nautical miles ( 108. 0 and 315. 6 km, respectively ).

While counter weights add a considerable amount of weight to the crankshaft, it provides a smoother running engine and allows higher RPM levels to be reached.

While the game engine itself remained relatively similar between all games in the series, the interface went through many changes.

While progressive, this was a controversial design decision among fans of the original title, a well-known first-person shooter built on the Doom engine.

While it is true that three power strokes typically occur per rotor revolution due to the 3: 1 revolution ratio of the rotor to the eccentric shaft, only one power stroke per shaft revolution actually occurs ; this engine provides three power ' strokes ' per revolution per rotor giving it a greater power-to-weight ratio than piston engines.

While search engine optimization can improve search engine ranking, consumers of such services should be careful to employ only reputable providers.

While it has since become clear that an index ( search engine ) is the most expedient entre into unfamiliar subject matter, associational links have remained an effective navigational method for obtaining intensive coverage of a subject area under study.

While the 356's body was an original design by Porsche employee Erwin Komenda, its mechanicals ( including engine, suspension and chassis ) were derived from the Volkswagen.

While automobile engine technology had remained fairly stagnant in World War II, advanced aircraft piston engine development had provided a great deal of available data, and NASCAR was formed just as some the improved technology was about to become available in production cars.

While the most widely recognized form of spam is e-mail spam, the term is applied to similar abuses in other media: instant messaging spam, Usenet newsgroup spam, Web search engine spam, spam in blogs, wiki spam, online classified ads spam, mobile phone messaging spam, Internet forum spam, junk fax transmissions, social networking spam, social spam, television advertising and file sharing network spam.

* While at lower speeds, air-breathing engines are very efficient, the efficiency ( Isp ) and thrust levels of air-breathing jet engines drop considerably at high speed ( above Mach 5 – 10 depending on the engine ) and begin to approach that of rocket engines or worse.

While a four-stroke piston engine makes one combustion stroke per cylinder for every two rotations of the crankshaft ( that is, one-half power stroke per crankshaft rotation per cylinder ), each combustion chamber in the Wankel generates one combustion stroke per driveshaft rotation, i. e. one power stroke per rotor orbital revolution and three power strokes per rotor rotation.

While this approach does increase the complexity of the eccentric shaft design, it has been used successfully in the Mazda's production three-rotor 20B-REW engine, as well as many low volume production race engines.

While the car did not prove to be a major concern, the Peugeot engine proved to be heavy and unreliable.

; Efficiency: While there are losses in the charge / discharge cycle and in the conversion of electricity to motive power, Rutter points out that most electric boats need only about 1. 5 kW or 2 hp to cruise at 5 mph, a common maximum river speed and that a 30 hp petrol or diesel engine producing only 2 hp is considerably more inefficient.

While the NERVA engine was projected to weigh about 6, 803 kg, the final STNP offered just over 1 / 3 the thrust from an engine of only 1, 650 kg by improving the I < small >< sub > sp </ sub ></ small > to between 930 and 1000 seconds.

While modern flares can have an IR signature that is closely matched to the launching aircraft's engine exhaust, there is a readily distinguishable difference in UV signature between flares and jet engines.

While as recently as the 1990s jet engine flutter has grounded military aircraft.

While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting a motor or engine turning a propeller, or less frequently, in jet drives, an impeller.

While the fundamental technology underlying the Marathon engine is still considered rather outdated by today's standards, Aleph One has added significant improvements and a more modern polish to its capabilities and ported it to a wide variety of platforms, bringing Marathon and its derivatives far beyond their Mac roots.

While based in Cornwall Murdoch had to deal with a wide range of mechanical problems related to steam engines, and this led him to make practical improvements to the basic steam engine designs used by Boulton and Watt.

While many other operating systems generally make use of a package that contains pre-compiled ( executable ) programs, Sorcerer compiles source code on the machine prior to installation.

While later editions had more-or-less comprehensive installation programs that allowed selection of printers and terminals from a menu, in the very early releases, each of the escape sequences required for the terminal and printer had to be identified in the hardware documentation, then hand-entered into reserved locations in the program memory image.

While low-quality domestic kits are cheap the professional installation and maintenance of high definition CCTV is expensive.

While its time as a political centre was short, Kingston has remained an important military installation.

While the LLNL installation was the largest Blue Gene / L installation, many smaller installations followed.

While he admitted that the installation of the idols may have been " an illegal act ", Nayar refused to remove them from the mosque claiming that " the depth of feeling behind the movement ... should not be underestimated.

While they may or may not term themselves " conceptual artists ", ideas such as anti-commodification, social and / or political critique, and ideas / information as medium continue to be aspects of contemporary art, especially among artists working with installation art, performance art, net. art and electronic / digital art.

" While many Lancaster B. IIs had retained the FN64 ventral turret, a small number of Halifax and Lancaster bombers were unofficially fitted with a single machine gun installation in either a ventral turret or a makeshift port directly under the mid-upper gunner station.

While synchronous generators capable of isolated plant operation are often used, small hydro plants connected to an electrical grid system can use economical induction generators to further reduce installation cost and simplify control and operation.

While Pioneer produced some industrial " jukeboxes " that held more than 50 discs, one company offered, for a short time in 1984, a " LaserStack " unit that required the user to physically remove the player lid for installation and attached to the top of the Pioneer LD-600, LD-1100 or the Sylvania / Magnavox clones.

While infiltrating a military installation two miles ( 3 km ) south of Sunnydale, Buffy attempts to break Ethan out of his cell, but instead finds him dead, having been shot and apparently killed by General Voll in " The Long Way Home, Part Four ".

While a live CD typically does not alter any operating system or files already installed on a computer's secondary storage ( such as hard disk drives ), many live CDs include optional software mechanisms and utilities for altering the host computer's data stores, including installation of an operating system.

While the main campus of Université catholique de Louvain is based at Louvain-la-Neuve, it also comprises a small campus in Brussels, in Woluwe-Saint-Lambert, which until recently was called " Louvain-en-Woluwe " ( the authorities of the UCL tend to prefer nowadays to refer to it as " UCL-Brussels Woluwe ") for the faculty of medicine of the university, a campus in Mons called " UCL-Mons ", a minor installation in Charleroi with 133 students ( 2011 ) " UCL-Charleroi ", an architectural school in Tournai " UCL-Tournai " with 540 students ( 2011 ), an architectural school in Brussels " UCL-Bruxelles Saint Gilles " with 570 students ( 2011 ).

While the main series is numbered, each individual game takes place either before or after a consequent installation.

While employed at NSA, Mr. Black completed a wide variety of assignments including Special Assistant to the Director for Information warfare ; Chief A Group ( Operations Analysis ); Chief, NSA / CSS Representative Europe office ( NCEUR ); Associate Deputy Director for Operations / Military Support ; and he served as both Chief and Deputy Chief of a major field installation.

While the installation is largely automatic, the user must proceed through multiple screens to acknowledge software license terms, specify partition settings for the hard disk, enter the " product key ", select international settings, a time zone, and also configure network settings.

While the Master Chief and Arbiter have returned to Earth in order to stop the Prophet of Truth, the religious leader of the Covenant, from activating a Forerunner artifact buried in Africa, Gravemind turns High Charity into a Flood hive and sends an infected cruiser to Earth in an effort to infest the planet ; this plan fails, and a message from Cortana informs the Master Chief and allies of the existence of the Ark, a special installation built by the Forerunners outside of the Milky Way galaxy where all the Halos can be fired remotely.

While installation was customized and varied in each theater, the Sensurround horns were typically placed beneath the screen in front and in the back corners of the theater.

While a member of the London-based music community, he participated in the music conference musicalliance ( now known as modal ), for which he set up the Mekons ' art installation Untitled at the Spitz.

While still retaining the DynaTAC name, the 6000XL was completely unrelated to the DynaTAC 8000 Series, in that it was a transportable phone meant for installation in a vehicle.