This limb stiffness makes the compound bow more energy efficient than other bows, but the limbs are too stiff to be drawn comfortably with a string attached directly to them.

Several variants of the double pendulum may be considered ; the two limbs may be of equal or unequal lengths and masses, they may be simple pendulums or compound pendulums ( also called complex pendulums ) and the motion may be in three dimensions or restricted to the vertical plane.

In the following analysis, the limbs are taken to be identical compound pendulums of length and mass, and the motion is restricted to two dimensions.

A compound bow is a modern bow that uses a levering system, usually of cables and pulleys, to bend the limbs.

* When a compound bow is drawn, the limbs are pulled in toward each other, by the buss cables, unlike a longbow or recurve where the limbs flex in the direction of the bow string.

This is due to the fact that a compound bow will accelerate an arrow more gently and linearly as the cam unwinds so flexing the arrow less, as compared to the explosive acceleration of an arrow from a recurve bow where the full power of the limbs is applied to the arrow as soon as the string is released.

The compound bow, not to be confused with a composite bow, is a modern bow that uses a levering system, usually of cables and pulleys, to bend the limbs. The limbs of a compound bow are much stiffer than those of a recurve bow or longbow.

Of the energy remaining, some is dampened both by the limbs of the bow and the bowstring.

The recurve bow's bent limbs have a longer draw length than an equivalent straight-limbed bow, giving more acceleration to the projectile and less hand shock.

Recurved limbs also put greater strain on the materials used to make the bow, and they may make more noise with the shot.

A modern invention, the bow quiver attaches directly to the bow's limbs and holds the arrows steady with a clip of some kind.

The limbs store all the energy of the bow — no energy is stored in the pulleys and cables.

There are several different concepts of utilizing the cams to store energy in the limbs, and these all fall under a category called bow eccentrics.

It is unknown when the asymmetrical yumi came into use but the first written record is in a Chinese manuscript from the 3rd century AD which describes the people of the Japanese islands using a wooden bow with upper and lower limbs of different lengths, and bamboo arrows with points of bone or iron.

The basic elements of a bow are a pair of curved elastic limbs, traditionally made from wood, joined by a riser.

Both ends of the limbs are connected by a string known as the bow string.

A composite bow uses a combination of materials to create the limbs, allowing the use of materials specialized for the different functions of a bow limb.

In a crossbow, the limbs of the bow, called a prod, are attached at right angles to a crosspiece or stock in order to allow for mechanical pulling and holding of the string.

This shape, viewing the limbs, is designed to take into account the construction materials, the performance required, and the intended use of the bow.

When the archer commences the draw, mechanical advantage is at its greatest and the bow limbs are only pre-stressed to the strung position ; therefore drawing weight is at a minimum.

Lord, love us, look at all the disconnected limbs floating hereabouts, like bloody feathers at that -- and all the eyes are talking and all the hair are moving and all the tongue are in all the cheek.

Most have four limbs and live in fresh water or on land but the caecilians, though included in the group, live in burrows in damp soil and are limbless.

Members of this order are eel-like aquatic salamanders with much reduced forelimbs and no hind limbs.

The sirens are aquatic salamanders with stumpy forelimbs and no hind limbs.

In the walkers and runners the hind limbs are not so large and the burrowers mostly have short limbs and broad bodies.

In most salamanders, the limbs are short and more or less the same length and project at right angles from the body.

Adult frogs are unable to regrow limbs but tadpoles can do so.

The forelimbs may be partially developed and the hind limbs are rudimentary in pond-living species but may be rather more developed in species that reproduce in moving water.

The limbs are of moderate length.

There are two key challenges: first, many patients have impaired circulation in their extremities, and second, they have difficulty curing infections in limbs with poor vasculation ( blood circulation ).

A large proportion of amputees ( 50 – 80 %) experience the phenomenon of phantom limbs ; they feel body parts that are no longer there.

These limbs can itch, ache, burn, feel tense, dry or wet, locked in or trapped or they can feel as if they are moving.

In the groups where the carapace prevents the use of the trunk limbs for swimming ( Cladocera, clam shrimp and the extinct Lipostraca ), the antennae are used for locomotion, as they are in the nauplius.

The trunk limbs are beaten in a metachronal rhythm, causing a flow of water along the midline of the animal, from which it derives oxygen, food and, in the case of the Anostraca and Notostraca, movement.

Most bones of the limbs, including those of the fingers and toes, are long bones.

The calyx is tubular or campanulate, they are slightly curved or straight, and the limbs are often 2-lipped with five teeth.

In this regard, cycling is especially helpful for those with arthritis of the lower limbs who are unable to pursue sports that cause impact to the knees and other joints.

These give them an advantage in combat since the limbs are outfitted with offensive weapons.

The limbs are usually much stiffer than those of a recurve crossbow.

The koala is broadly similar in appearance to the wombat ( its closest living relative ), but has a thicker coat, much larger ears, and longer limbs.

Because newborn marsupials must climb up to their mother's nipples, their front limbs are much more developed than the rest of the body at the time of birth.

The Chelicerata are arthropods as they have: segmented bodies with jointed limbs, all covered in a cuticle made of chitin and proteins ; heads that are composed of several segments that fuse during the development of the embryo ; a much reduced coelom ; a hemocoel through which the blood circulates, driven by a tube-like heart.

Additional materials have allowed artificial limbs to look much more realistic, which is important to transradial and transhumeral amputees because they are more likely to have the artificial limb exposed.

Myoelectric limbs, which control the limbs by converting muscle movements to electrical signals, have become much more common than cable operated limbs.

He clarified that he considers the character to be " almost asexual ;" he has been shown in various episodes to regenerate his limbs and reproduce by " budding ", much like real sponges do.

Snapback is analogous to stretching a rubber band to its breaking point between the hands, and then suffering a stinging blow from the retracting loose ends of the band-in the case of a heavy mooring line this blow carries much more force and can inflict severe injuries or sever limbs.

The figures ’ elongated limbs lack definition, while much emphasis is placed on their large feet, round buttocks, and African-inspired masked heads.

In the third book, the general concepts proposed thus far are applied to demonstrate that the vital and intellectual principles, the Anima and Animus, are as much a part of us as are our limbs and members, but like those limbs and members have no distinct and independent existence, and that hence soul and body live and perish together ; the argument being wound up by a magnificent exposure of the folly manifested in a dread of death, which will for ever extinguish all feeling.

The first versions of sepak takraw were not so much of a competition, but rather cooperative displays of skill designed to exercise the body, improve dexterity and loosen the limbs after long periods of sitting, standing or working.

In 1856 Kuniyoshi suffered from palsy, which caused him much difficulty in moving his limbs.

The limbs are well developed ; the fourth hind toe is not much longer than the third.

by its relatively shorter body, longer limbs and a much broader head.

They are skilled climbers, and often spend just as much time perching on tree limbs, fenceposts, and in bushes as they do on the ground.

Such tracks can tell much about the gait of the animal which made them, what its stride was, and whether or not the front limbs touched the ground.

He also threw lavish banquets, during which savage tortures would be performed on betrayers as entertainment: he would first cut their tongue so they wouldn't make much noise for the following operations, which were the severing of limbs and removal of eyeballs.

Compliance improves this situation by allowing limbs to continue past the points where they are programmed to stop ; they then return quickly to the " intended " position, much as real organic body parts do.