The American firearms and ammunition manufacturers through diligent research and technical development have replaced the muzzle loader and slow-firing single-shot arms with modern fast firing auto-loaders, extremely accurate bolt, lever, and slide action firearms.

While all modern valved and slide brass instruments consist in part of conical and in part of cylindrical tubing, they are divided as follows:

A magic lantern is an early type of image projector, an ancestor of the modern slide projector.

Most recently lap style slide has been re-born via artists like Jack White, Sean Kirkwood and Xavier Rudd-both players of weissenborns, the former using original early 1900s instruments long with modern day variations such as his own co-designed Asher signature model, the latter using modern reproductions of weissenborn.

Although Franciscus Vieta ( 1540 – 1603 ) gave the first notation of modern algebra, John Napier ( 1550 – 1617 ) invented logarithms, and Edmund Gunter ( 1581 – 1626 ) created the logarithmic scales ( lines, or rules ) upon which slide rules are based.

Most notes in the series are slightly out of tune and modern trumpets have slide mechanisms built in to compensate.

The " frog " ( which holds the bowhair and adjusts its tension ) is also different from that of modern bows: whereas a violin bow frog has a " slide " ( often made of mother of pearl ), which pinches the hair and holds it flat and stationary across the frog, viol bows have an open frog that allows more movement of the hair.

Most modern bayonets are attached to a rifle by sliding the bayonet onto a bayonet lug, a rail-like slide on the rifle, with a reciprocating feature in the hilt of the bayonet.

But he was in fact the person who combined the slide rest, leadscrew, and change gears in a precision machine, which popularized the concept and caused modern industry to widely adopt it.

In two of the attested pianos, there is a forerunner of the modern soft pedal: the player can manually slide the entire action four millimeters to one side, so that the hammers strike just one of the two strings (" una corda ").

A modern piano manufacture, Fazioli ( Sacile, Italy ), has blended Steinway's original ideas by creating a stainless-steel track, fixed to the cast-iron plate, on which individual aliquots slide.

It is a modern equivalent of the slide projector or overhead projector.

The PT92 can be distinguished from its modern Beretta counterpart primarily by having the safety mounted on the frame as opposed to on the slide like the Beretta.

* In an effort to avoid simple relationships between the cipher key and the subkeys, to resist such forms of cryptanalysis as related-key attacks and slide attacks, many modern ciphers use much more elaborate key schedules, algorithms that use a one-way function to generate an " expanded key " from which subkeys are drawn.

The Beretta 9000 pistol is a polymer framed design that retains traditional open top slide styling with modern materials.

The engineer, motorman or driver will only use the emergency brake as a last resort, since it may cause damage ; even with modern wheel slide protection, a train may develop wheel-flats, and the rails themselves can suffer profile damage.

Trireme oarsmen used leather cushions to slide over the seats, which allowed them to use their leg strength as a modern oarsman does with a sliding seat.

An modern type of evacuation slide is the vertical spiral escape chute, which is a common means of evacuation for buildings and other structures.

Victor Mayer Amédée Mannheim ( 17 July 1831 – 11 December 1906 ) was the inventor of the modern slide rule.

The focal point of the resort, the Dig Site's, 5 story tall Mayan pyramid themed, with water slide, as a modern archaeological dig of an ancient lost kingdom.

To preserve the stairwell's appearance and function while still conforming to modern safety standards, an innovative automated fire protection system was installed which would slide out and close protective fire doors from concealed storage areas on each floor, effectively sealing the stairwell off.

The tin whistle in its modern form is from a wider family of fipple flutes which have been seen in many forms and cultures throughout the world.

In the 17th century whistles were called flageolets ; a term to describe a whistle with a French made fipple headpiece ( common to the modern penny whistle ) and such instruments are linked to the development of the English flageolet, French flageolet and recorders of the renaissance and baroque period.

The term flageolet is still preferred by some modern tin whistle who feel this better describes the instrument, as this characterises a wide variety of fipple flutes, including penny whistles.

The modern penny whistle is indigenous to the British Isles particularly England when factory-made " tin whistles " were produced by Robert Clarke from ( 1840 – 1882 ) in Manchester and later New Moston, England.

Clarke whistles were sold for a nominal fee ( a British penny ) and the acquired names of penny and tin whistle have endured to modern times.

The Queen Mary 2, being 345 metres long, was given the lowest possible frequency ( 70 Hz ) for her regulation whistles which means she carries both 70 Hz modern whistles and a single vintage 55 Hz whistle.

In modern TV ads, Cap ’ n Crunch is often seen riding his ship through a wall as the whistle blares.

English flute maker and jazz musician Bernard Overton is credited with producing the first modern low whistle in late 1971, which he made for Finbar Furey after Furey's prized Indian bamboo whistle was destroyed while on tour.

Of particular note is Davy Spillane, whose work in fusing the sound of traditional instruments such as the low whistle with modern jazz or RnB, for example, has done much for the instrument's visibility.

When asked to describe their genre, Caroline Corr said it was a " blend of modern rhythms and technology with acoustic instruments, violin, tin whistle, drums, and of course the voices, the marrying of these instruments is our sound ".

Despite the advent of modern radio communication, many of these whistle signals are still used today.

In addition to releasing two solo albums, which aided the popularisation of modern traditional Irish tin whistle playing, and three albums with Dordán, she has taught hundreds of students, in Ireland, across Europe, and in the United States, to play the whistle.

This is the only case in modern history of a people of Britannic origin submitting without continued struggle to what they view as foreign domination.

While sovereignty has roots in antiquity, in its present usage it is essentially modern.

Neither is primary experience understood according to the attitude of modern empiricism in which nothing is thought to be received other than signals of sensory qualities producing their responses in the appropriate sense organs.

Shakespeare's Shylock, too, is of dubious value in the modern world.

But a modern Oedipus who is doomed because he cannot oppose his own childhood is only pathetic, and for renouncing the mystery in favor of psychological truth he gives up the claim on our sympathies.

A characteristic expression of such concern and inquiry is found in Joseph P. Lyford's Introduction To The Agreeable Autocracies, a recent paperback study of the institutions of modern democratic society.

The men who speculate on these institutions have, for the most part, come to at least one common conclusion: that many of the great enterprises and associations around which our democracy is formed are in themselves autocratic in nature, and possessed of power which can be used to frustrate the citizen who is trying to assert his individuality in the modern world ''.

As Sandburg said at the time: `` It is as ancient as the medieval European ballads brought to the Appalachian Mountains, it is as modern as skyscrapers, the Volstead Act, and the latest oil well gusher ''.

Here we may observe that at least one modern philosophy of history is built on the assumption that ideas are the primary objectives of the historian's research.

The Chicago contingent of modern critics follow Aristotle so far in this direction that it is hard to see how they can compare one poem with another for the purpose of evaluation.

Diplomatic is another area for which the dawn of the twentieth century marks the beginning of modern standards of scholarship.

This is certainly an irrational dogmatism, in which the modern mind attempts to understand the spirit of the sixteenth century on twentieth-century terms.

Rexroth is a longtime jazz buff, a name-dropper of jazz heroes, and a student of traditional as well as modern jazz.

In addition to his experiments in reading poetry to jazz, Patchen is beginning to use the figure of the modern jazz musician as a myth hero in the same way he used the figure of the private detective a decade ago.

This angry and exasperated stance which Patchen has maintained in his poetry for almost fifteen years has been successfully modulated into a kind of woe that is as effective as anger and still expresses his disapproval of the modern world.

But the firm has recognized the tight dollar and the tourist's desire to visit the `` smaller, less-traveled and relatively inexpensive countries '', and is now prepared to teach modern Greek and Portuguese through recordings.

Perhaps there is more truth than we are wont to admit in the conviction of that ornament of Tarheelia, Robert Ruark's grandfather, who was persuaded that the great curse of the modern world is `` all this gallivantin' ''.

The possibility of recall into the Army is part of the price that a modern American has to pay for the enviable heritage of liberty which he enjoys.

Under modern conditions, this is especially true of the ready reserve.

However, its modern one-story layout is designed to increase our production capacity, permit more efficient manufacturing, and substantially reduce current repair and maintenance costs.