Although the oar can be conveniently thought of as a lever with a " fixed " pivot point in the water, the blade moves sideways and sternwards through the water, so that the magnitude of the propulsion force developed is the result of a complex interaction between unsteady fluid mechanics ( the water flow around the blade ) and solid mechanics and dynamics ( the handle force applied to the oar, the oar's inertia and bending characteristic, the acceleration of the boat and so on ).

Although the firing lever must be replaced after each mission, it is estimated that some 30 per cent of the WRECISS can be re-used without repairs and a

Although rats would attack him at night, he was able, by domesticating and living near feral cats, to sleep soundly and in safety.

Although most of the legions were lost, about 10, 000 Romans cut their way through to safety, maintaining unit cohesion.

Although this adds overhead due to the extra information stored about the pointer, it improves safety and security.

Although Greenpeace had stated that efficiency was its primary concern, as early as 2001, statements from March and April 2005 also continued to express concern over human health and environmental safety Greenpeace has opposed releasing golden rice to fields as opposed to farming in greenhouses, which according to golden rice developer Ingo Potrykus, limits the amount of material needed for human safety testing.

Although a capable leader, Helga tries too hard and makes rash decisions that jeopardize the safety of her troops.

Although they are still considered to be highly effective, they have been increasingly replaced by antidepressants with an improved safety and side effect profile, such as the SSRIs and other newer antidepressants such as the novel reversible MAOI moclobemide.

Although many countries recognize treaties like the International Labor Organization, which attempt to set standards for worker safety and rights, many countries have made exceptions to certain parts of the treaties or failed to thoroughly enforce them.

Although modern printers include many safety interlocks and protection circuits, it is possible for a high voltage or a residual voltage to be present on the various rollers, wires, and metal contacts inside a laser printer.

Although humidification technology could raise its relative humidity to comfortable middle levels, this is not done since humidity promotes corrosion to the inside of the hull and risks condensation which could short electrical systems, so for safety reasons it is deliberately kept to a low value, around 10 %.

Although parliament exonerated Albany, fears for James's safety grew during the winter of 1405 – 6 and plans were made to send him to France.

Although safety lenses may be constructed from a variety of materials of various impact resistance, certain standards suggest that they maintain a minimum 1 millimeter thickness at the thinnest point, regardless of material.

Although poisoning incidents are rare, particularly in developed nations, they are a cause for concern about the safety of moonshine.

Although paper cartridges were safer to handle than loose powder, their primary purpose was not safety related at all.

Although injured in the escape, the king and his family managed to flee to safety.

Although recumbent bicycles are generally considered safer than upright bicycles ( as noted above ), they do have some specific safety issues.

Although ropes might be necessary on harder scrambles, sustained use of rope and belay probably counts as climbing ; typically, the use of ropes in scrambling is limited to rappelling or for basic safety uses other than belays up a vertical face.

Although plate bindings of the era had much better safety records, notably the Spademan design, the new boots and bindings could be easily adapted to any ski for any skier.

Although Koch distributed pamphlets about safety around the pipelines, they failed to maintain an up-to-date mailing list.

Although no longer than its predecessor, the Mark III was a heavier car, reflecting a trend towards improving secondary safety by making car bodies more substantial.

Although the hard-fought Veneto region formally belonged to the Byzantine Exarchate of Ravenna since the end of the Gothic War, it remained unsafe on account of frequent Germanic invasions and wars: During the following 200 years the Lombards and the Franks fuelled a permanent influx of sophisticated urban refugees to the island ’ s relative safety, including the Bishop of Altino himself.

Although this was in keeping with Volvo's emphasis on safety, it also increased its cost of production.

Although the Seven has always been popular with enthusiasts outside of the UK marketplace, export of the Seven to other markets has increasingly been limited by homologation, safety and emissions regulations in the modern era.

Although initially deserted by commercial carriers upon the opening of the Suvarnabhumi Airport, the higher costs of the new airport to operators as well as safety concerns over cracked runways at the new airport caused many to seek a return to Don Mueang.

Although a conventional carburetor, with the ability to keep the fuel / air ratio constant over a range of throttle openings was precluded by the spinning cylider block, it was possible to adjust the air supply through a separate flap valve or " bloctube ".

Although the impetus for a tubular valve began as early as 1793, it was not until 1818 that Friedrich Bluhmel and Heinrich Stölzel made a joint patent application for the box valve as manufactured by W. Schuster.

Although many 2-way valves are made in which the flow can go in either direction between the two ports, when a valve is placed into a certain application, flow is often expected to go from one certain port on the upstream side of the valve, to the other port on the downstream side.

Although it has valves and the same tubing length as a trombone, the bass trumpet is very different from the valve trombone.

Although Babcock engineers recognised the problem, the company failed to clearly notify its customers of the valve issue.

Although some enthusiasts suggest air guns posed a serious alternative to powder weapons, that was never proved to be the case, as valve leaks and bursting reservoirs were known problems.

Although better heat conductors, aluminum cylinder heads require steel valve seat inserts, while cast-iron cylinder heads often used integral valve seats in the past.

Although the ( sometimes faint ) concentric rings on the exterior of a valve are commonly described as " growth rings " or " growth lines ", a more accurate method for determining the age of a shell is by cutting a cross section through it and examining the incremental growth bands.

Although the Chevette was largely a rebadged Opel Kadett C with revised front-end ( detailed below ), it did use the 1256 cc overhead valve ( OHV ) engine of the Viva instead of the Kadett's units, which were produced by Opel.

Although showy polished brass covers over safety valves had been a feature of steam locomotives since Stephenson's day, the only railway to maintain this tradition into the era of pop valves was the GWR, with their distinctive tapered brass safety valve bonnets and copper-capped chimneys.

Although better, this was still not great, and it also took up much valuable space in between the driving wheels, requiring Mason to use an outside valve gear, generally the Walschaerts valve gear.

Although a wedge-head design offers simplified valve actuation, it usually does so by placing the valves side by side within the chamber.

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Although he was unable to save his son Casey, his design, the Spitz-Holter valve ( also called the Spitz-Holter shunt ) continues to help millions around the world since the late 1950s.

Although technically a four component electrode device, neither the term tetrode nor the tetrode valve as we know it today had yet appeared.

Although some valve portable receivers were available, batteries for these were expensive and did not last for long.

Although a gas tap may be a valve that releases any gas, the word is most commonly used to refer to taps that control the flow of fuel gas ( natural gas or, historically, coal gas, syngas, etc.

Although the engine gains only peak torque over the VQ35HR and this higher torque arrives at 5200 rpm vs. 4800 in the VQ35HR, the torque curve itself is improved and flattened via VVEL variable valve timing for better throttle response and low rpm torque.

Although it was Allen who improved the design by replacing the usual slide valve with a hinged flap that sealed the bottom of the bowl,