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This drag is difficult to remove, because the shell needs to be " nose heavy " in order to have proper ballistics, and it cannot easily be shaped into a more aerodynamic form.
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drag and is
A road block to desirable local or borough improvements, heretofore dependent on the pocketbook vote of taxpayers and hence a drag on progress, is removed by making these a charge against the whole city instead of an assessment paid by those immediately affected.
Cast into the crown of the anchor is a set of tripping palms, projections that drag on the bottom, forcing the main flukes to dig in.
If the weight is suspended off the seabed it acts as a spring or shock absorber to dampen the sudden actions that are normally transmitted to the anchor and can cause it to dislodge and drag.
Conversely, an adiabatic process that is irreversible and extracts no work is in an isenthalpic process, such as viscous drag, progressing towards a nonnegative change in entropy.
If the fletching is not arranged to induce rotation, it will still improve accuracy by causing a restoring drag any time the arrow tilts away from its intended direction of travel.
A pioneer of aeronautical engineering, he is credited as the first person to separate the forces of lift and drag which are in effect on any flight vehicle,
This equation is incorrect for the calculation of drag in most cases.
The Newton formula can lead one to believe that flight is more difficult than it actually is, due to this overprediction of drag and thus required thrust, and it may have contributed to a delay in human flight.
Sir George Cayley is credited as the first person to identify the four aerodynamic forces of flight — weight, lift, drag, and thrust — and the relationships between them.
Wave drag is a sudden rise in drag on the aircraft, caused by air building up in front of it.
The shuttlecock ( or shuttle ) is a feathered projectile whose unique aerodynamic properties cause it to fly differently than the balls used in most racquet sports ; in particular, the feathers create much higher drag, causing the shuttlecock to decelerate more rapidly than a ball.
Air drag, which is proportional to the square of speed, requires dramatically higher power outputs as speeds increase.
If the rider is sitting upright, the rider's body creates about 75 % of the total drag of the bicycle / rider combination.
A drag queen is usually a male-bodied person who performs as an exaggeratedly feminine character, in heightened costuming sometimes consisting of a showy dress, high-heeled shoes, obvious makeup, and wig.
A drag king is a counterpart of the drag queen but usually for much different audiences.
This kind of start is necessary and desirable in drag racing and other competitions, where speed is more important than comfort.
The English students are telling their foreign teacher that the slang is a drag and something for old people.
The film is an intimate portrait of three young drag queens from her home state who compete in female impersonator beauty pageants.
As the rider does so, an " inside " rail fin sinks deeper and its angle of attack is increased, as is its lift-induced drag.
drag and difficult
" The teetotaling Hepburn, in and out of character, fared worse in the difficult conditions, losing weight, and at one time, getting very ill. Bogart resisted Huston's insistence on using real leeches in a key scene where Bogart has to drag the boat through a shallow marsh, until reasonable fakes were employed.
These compromises are difficult to reconcile, and efforts to do so can reduce or even negate the expected advantages of the flying wing design, such as reductions in weight and drag.
For a particle theory, he remarked that " it is difficult to imagine a law of collision compatible with the principle of relativity ", and the problems of drag and heating remain.
We left This bay Bay to enter the river that discharges into it ; it is very beautiful at its Mouth … But, after ascending the river a short distance, it becomes very difficult of passage, on account of both the Currents and the sharp Rocks, which Cut the Canoes and the feet of Those who are obliged to drag them, especially when the Waters are low.
In addition, szlachta did not think highly of the Swedes, and did not expect this war to drag long or be difficult.
Atmospheric drag also makes it more difficult to control the trajectory of any projectile launched, subjects the projectile to extremely high forces, and causes severe energy losses that may not be easily overcome.
Since drag suits make swimming more difficult, swimmers do not often wear drag suits in competition, unless they wish to continue training undisrupted through the duration of a meet.
Often very sleek, high-performance airplanes will be very difficult to slow to a safe landing speed without the aerodynamic drag of the extended landing gear.
drag and remove
But since the strip is very narrow, it does not drag on the skin of the wearer and thus makes the suit easy to put on and remove.
However, after carefully studying the rulebooks, Porsche engineers, namely Norbert Singer, discovered a loophole regarding the modifications of fenders that gave them the liberty to remove the headlights to reduce drag and create more downforce, to which the venting slits contribute.
The critical part of the operation is to separate the cope and drag to remove the pattern.
He believed that custom-made shoes would weigh less on the feet of his runners and cut down on blisters, as well as reduce the overall drag on their energy for every ounce he could remove from the shoe.
The attempt was not fast enough, so the team adjusted wing settings to remove drag from the car and went out for another attempt, again with no practice.
drag and because
Movement along faults can result in folding, either because the faults are not planar, or because the rock layers are dragged along, forming drag folds, as slip occurs are along the fault.
There is no time limit for a Loya Jirga to conclude, and the meetings often take a long time because decisions can only be made as a group and arguments can drag out for days.
* Multihulls are inherently substantially faster than monohulls, because the absence of ballast reduces their weight and the amount of drag through the water considerably ( see hull speed ).
If an orbit is about a planetary body with significant atmosphere, its orbit can decay because of drag.
Some satellites with long conductive tethers can also experience orbital decay because of electromagnetic drag from the Earth's magnetic field.
This combination is possible because of a high-efficiency petrol engine, low weight, and low drag.
While this skim-feeding view became widely accepted, it was not subjected to scientific research until 2007 when a study showed that for such large pterosaurs it was not a viable method because the energy costs would be too high due to excessive drag.
During a speech by O ' Leary, in which she claimed that drag queens made fun of women for entertainment value and profit, Sylvia Rivera and Lee Brewster jumped on the stage and shouted " You go to bars because of what drag queens did for you, and these bitches tell us to quit being ourselves!
O ' Leary later regretted her stance against the drag queens attending in 1973: " Looking back, I find this so embarrassing because my views have changed so much since then.
The altitude is usually not less than 300 km because that would be impractical due to the larger atmospheric drag.
The fluctuation in the height of the exobase is important because this provides atmospheric drag on satellites, eventually causing them to fall from orbit if no action is taken to maintain the orbit.
For efficient steady flight the ratio of span to chord, the aspect ratio, should be as high as possible ( the constraints are usually structural ) because this lowers the lift-induced drag associated with the inevitable wingtip vortices.
Dust and possibly water ice from this belt migrates inward because of drag from the stellar wind and a process by which stellar radiation causes dust grains to slowly spiral toward the star, known as the Poynting – Robertson effect.
The wing is said to perform even better if it can be constructed of tight mesh, because that reduces its drag, while maintaining lift.
Ice-sailors and land-sailors also usually fall into this category, because of their relatively low amount of drag or friction.
This separation of those two mediums was necessary, because according to his calculations the absence of any drag effect in the orbit of Neptune implies a lower limit for the particle velocity of 5 · 10 < sup > 19 </ sup > cm / s.
He notes that the mechanism of " bouncing particles " reproduces the inverse-square force law and that " the strangeness of the mathematical relation will be very much reduced ", but then remarks that the scheme " does not work ", because of the drag it predicts would be experienced by moving bodies, " so that is the end of that theory ".
Similarly, a high aspect ratio wing will produce less induced drag than a wing of low aspect ratio because the size of the wing vortices will be much reduced on a longer, thinner wing.
In aviation, induced drag tends to be greater at lower speeds because a high angle of attack is required to maintain lift, creating more drag.
However, as speed increases the induced drag becomes much less, but parasitic drag increases because the fluid is flowing faster around protruding objects increasing friction or drag.
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