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At and liftoff
* 1996 – At the Xichang Satellite Launch Center in China, a Long March 3 rocket, carrying an Intelsat 708, crashes into a rural village after liftoff, killing many people.
At its launch attempt on December 6, 1957 at Cape Canaveral, the booster ignited and began to rise ; but about two seconds after liftoff, after rising about four feet ( 1. 2 m ), the rocket lost thrust and began to fall back to the launch pad.
At liftoff the outer bell is pulled up from the inner bell, out of the way of the exhaust.
At T + 330 seconds after liftoff, the J-2X engine cuts off, and the Orion spacecraft would enter an initial entry orbit, which, 45 minutes later, is circularized by a second burn of the onboard J-2X engine, after which the Orion spacecraft separates ( allowing the second stage to burn up in the atmosphere ) and extends a pair of paddle-shaped solar panels.
At liftoff the first stage is responsible for accelerating the vehicle.
At 127. 1 seconds after liftoff, and 5. 3 seconds after SRB separation, a large piece of debris separated from the Protuberance Air Load ( PAL ) ramp, which is part of the external tank ( see animation, above left ).

At and engine
At the prearranged time, Greg started the engine and taxied out.
At 12,000 feet, Fiedler signaled `` release '', and started the roaring pulse-jet engine -- then streaked away from beneath the Heinkel.
At the same time, the third car moves to the engine assembly.
At this point, during tests of the CSM's steerable rocket engine in preparation for the burn to modify the craft's orbit, a malfunction occurred in the engine's backup system.
At the same time, an " X2 " performance option with a more powerful version of the six-cylinder engine was made available.
At GM headquarters ’ request, Holden was then reorganised and recapitalised, separating the engine and car manufacturing divisions in the process.
At one time, the word, " Engine " ( from Latin, via Old French, ingenium, " ability ") meant any piece of machinery — a sense that persists in expressions such as siege engine.
At first the phases were controlled by hand, but within ten years an escapement mechanism had been devised worked by a vertical plug tree suspended from the rocking beam which rendered the engine self-acting.
At 2007's WWDC, John Carmack showed the new engine called Id Tech 5.
At first Schonberg drove the homemade device, powered by a modified JAP motorcycle engine built by Brabham in his workshop.
At that time, almost all racing cars had their engines mounted at the front but Coopers were different, having the engine placed behind the driver, which improved their handling.
At the same time Australian models received the same 320 PS ( 235 kW / 316 hp ) engine management setup as other markets.
At the time, Volkswagen lacked an internal research and design division, and Porsche was doing the bulk of the company's development work, per a deal that went back to the 1950s ; in keeping with this history, Porsche was contracted to develop a new sporting vehicle with the caveat that this vehicle must work with an existing VW / Audi I4 engine.
At the time, it typically took three years for a new design of car body or engine to end up in production and be available for NASCAR racing.
At, the air is at half the pressure of sea level, which means that the engine will produce less than half-power at this altitude.
At Dana's recommendation, for security purposes a scapegoat engine preceded Grant's train on the return trip.
At 07: 25 UT, the spacecraft's automatic systems brought it into the required attitude ( orientation ) for the reentry engine firing, and shortly afterwards, the engine firing occurred, also known as retrofire.
At launch the A-4 propelled itself for up to 65 seconds on its own power, and a program motor controlled the pitch to the specified angle at engine shutdown, from which the rocket continued on a ballistic free-fall trajectory.
At one extreme users of public transport sometimes complain about the faint and tinny sounds emanating from the headphones or earbuds of somebody listening to a portable audio player ; at the other the sound of very loud music, a jet engine at close quarters, etc.
At the same time, Dodge also introduced its first V8 enginethe Red Ram Hemi, a smaller version of the original design of the famed Hemi.
At this point the main thrusters shut down and the secondary thrusters ignited, slowing the fall until the lander was 1. 5 m ( 5 ft ) above the surface, where the engine was switched off.
At least one more major revision of Netscape was expected to be released with the old layout engine before the switch.
At that time Parnall had thoughts of going into engine manufacture and collaborated with D. R. Pobjoy in the development of the 65 hp Pobjoy P air-cooled radial engine.

At and typically
At Moroni, ocean-going vessels typically lie offshore and are loaded or unloaded by smaller craft, a costly and sometimes dangerous procedure.
At a classical bass audition, the performer typically plays a movement from a Bach suite or a movement from a bass concerto and a variety of excerpts from the orchestral literature.
At birth, an elephant calf typically weighs.
At the turn of the Industrial Age through the 1920s, families could more often afford things such as electric trains, wind up toys ( typically boats or cars ) and the increasingly valuable tin toy soldiers.
At the beginning of the 19th century Scottish universities had no entrance exam, students typically entered at ages of 15 or 16, attended for as little as two years, chose which lectures to attend and left without qualifications.
At rest, reflexes are typically reduced ; with muscle use, reflex strength increases.
At any given time, a manatee typically has no more than six teeth in each jaw of its mouth.
At Earth's orbit its typical density is 6 ions / cm < SUP > 3 </ SUP > ( variable, as is the velocity ), and it contains a variable interplanetary magnetic field ( IMF ) of ( typically ) 2 – 5 nT.
At the receiver side, the demodulator typically performs:
At the end of the sending period, typically about 20 to 40 minutes in length, the receiver is taken out of the Ganzfeld state and shown four images or videos, one of which is the true target and three of which are non-target decoys.
At close range, fine control of the tip in all three dimensions when near the sample is typically piezoelectric, maintaining tip-sample separation W typically in the 4-7 Å ( 0. 4-0. 7 nm ) range, which is the equilibrium position between attractive ( 3 < W < 10Å ) and repulsive ( W < 3Å ) interactions.
At high degrees of partial melting of the crust, granitoids such as tonalite, granodiorite and monzonite can be produced, but other mechanisms are typically important in producing them.
At present, the buildings of Granada are typically bourgeois in appearance, with much of the architecture dating from the 19th Century, together with numerous Renaissance and Baroque buildings.
At the end of the mediation process, the separating parties have typically developed a tailored divorce agreement that can be submitted to the court.
In its heyday, newspapers typically paid UPI about half what they paid AP in the same cities for the same services: At one point, for example, the Chicago Sun-Times paid AP $ 12, 500 a week, but UPI only $ 5, 000 ; the Wall Street Journal paid AP $ 36, 000 a week, but UPI only $ 19, 300.
At the post-secondary level vocational education is typically provided by an institute of technology, or by a local community college.
At the shipping point ( typically, a dock ) the copra is sampled by driving a small metal tube into the bag at several points, thus perforating the cups and collecting small amounts of copra within the tubes.
At some point in this cycle, PC will be modified so that the next instruction executed is a different one ( typically, incremented so that the next instruction is the one at the next sequential memory address ).
At the edge of the pocket there are typically two slightly unequal flagella.
At the start of The Lord of the Rings Sam, typically for a hobbit, had never before ventured far from the immediate area where he lived.
At that time it was still common to handle bulk materials with shovels, wheelbarrows and small narrow gauge rail cars, and for comparison, a canal digger in previous decades typically handled 5 tons per 12 hour day.
At that point, a variation in polishing strokes is typically used to create and perfect the desired paraboloidal shape.

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