In addition to modern versions of tricones and single cone resonators, National Resophonic also produce Dobro-style guitars.

Since it is hard to obtain large quantities of naturally-occurring beachworn cone tops, almost all modern puka shell jewelry uses cheaper imitations, cut from thin shells of other species of mollusk, or even made of plastic.

The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.

In contrast, a modern electrodynamic cone loudspeaker is a low impedance device, with higher current requirements.

Today's modern lining is the most difficult element to measure, since it consists of trapezoid-shaped strips of canvas assembled to form the shape of a truncated cone.

The modern stage of the evolution of Mount Pelée has created most of the current cone, with deposits of pumice and the results of past pyroclastic flows.

Archimedes could also find the volume of the cone using the mechanical method, since, in modern terms, the integral involved is exactly the same as the one for area of the parabola.

The modern volcanic cone comprises five lava domes, all constructed within the caldera of an ancestral Ruiz volcano: Nevado El Cisne, Alto de la Laguna, La Olleta, Alto la Pirana, and Alto de Santano.

Phreatic ( steam explosion ) eruptions, dacite and andesite lava flows along with cinder cone formation have persisted into modern times.

For this reason, a modern dog clutch in an automobile has a synchronizer mechanism or synchromesh, which consists of a cone clutch and blocking ring.

In modern math, this formula can easily be computed using calculus – it is, up to scaling, the integral Without using calculus, the formula can be proven by comparing the cone to a pyramid and applying Cavalieri's principle – specifically, comparing the cone to a ( vertically scaled ) right square pyramid, which forms one third of a cube.

The acoustic loading provided by the cone does not extend the low frequency limit low enough for most modern purposes, with its output energy markedly less than later designs throughout the bottom two octaves of the cone's intended frequency range.

Since the year 2000, The Chalice, a large piece of modern sculpture in the form of an inverted cone, has stood in the square subverting the shape of the spire that rises above the cathedral.

The modern form of the pyrometric cone was developed by Hermann Seger and first used to control the firing of porcelain wares at the Königliche Porzellanmanufaktur ( Royal Porcelain Works ) in Berlin, in 1886.

In modern times the volcano has had numerous small eruptions ( over ten of them since 1930 ); these are located at a cinder cone in the middle of the caldera.

Also differing from a modern cartridge, a separate percussion cap had to be placed onto the percussion lock's cone before the weapon could be used.

In the modern theory of relativity, the conceptual observer is at a geometric point in both space and time at the apex of the ' light cone ' which observes events laid out in time as well as space.

Most countries in this second category share the difficulty of having many of the structures of a modern political and social system without the modern standards of performance required to make them effective.

The old Morse system was replaced locally by the Simplex modern automatic method in 1929, when Ellamae Heckman ( Wilcox ) was manager of the Western Union office.

The abacus was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere.

Where the Roman model ( like most modern Japanese ) has 4 plus 1 bead per decimal place, the standard suanpan has 5 plus 2, allowing use with a hexadecimal numeral system.

His system included modifying the way we consider the world, e. g., with an attitude of " I don't know ; let's see ," to better discover or reflect its realities as revealed by modern science.

Asparagales is the name of an order of plants, used in modern classification systems such as the APG III system ( which is used throughout this article ).

Van Vogt was always interested in the idea of all-encompassing systems of knowledge ( akin to modern meta-systems ) -- the characters in his very first story used a system called ' Nexialism ' to analyze the alien's behaviour, and he became interested in the General Semantics of Alfred Korzybski.

Under the old Soviet central planning system, Armenia had developed a modern industrial sector, supplying machine tools, textiles, and other manufactured goods to sister republics in exchange for raw materials and energy.

The Bridgewater Foundry, pictured in 1839-one of the earliest factories to use an almost modern layout, work flow and material handling system.

Some wanted the modern liberal constitutional system, some wanted the continuance of the Ancien Régime, some wanted independence.

In order to overcome this weakness, modern aircraft use a terrain awareness warning system ( TAWS ).

The initial concept was known as AppleBus, envisioning a system controlled by the host Macintosh polling " dumb " devices in a fashion similar to the modern Universal Serial Bus.

* 1942 – Actress Hedy Lamarr and composer George Antheil receive a patent for a Frequency-hopping spread spectrum communication system that later became the basis for modern technologies in wireless telephones and Wi-Fi.

At a schematic level, that basic worm-shape continues to be reflected in the body and nervous system architecture of all modern bilaterians, including vertebrates.

In 1714, when he was appointed rector of the university, he succeeded Govert Bidloo in the chair of practical medicine, and in this capacity he introduced the modern system of clinical instruction.

On that Mississippi riverine system today, including that of other sheltered waterways, industrial barge trafficking in bulk raw materials such as coal, coke, timber, iron ore and other minerals is extremely common in the developed world using huge cargo barges that connect in groups and trains-of-barges in ways which allow cargo volumes and weights which would astonish pioneers of modern barge systems and methods in the Victorian era.

The five-kingdom system has largely been superseded by modern alternative classification systems.

Intentionally going down in modern boxing will cause the recovering fighter to lose points in the scoring system.

In a speech delivered at the nearby Masonic temple, Bush compared the RODS system to a modern " DEW " line ( referring to the Cold War ballistic missile early warning system ).

The Bronze Age is the second principal period of the three-age system, as proposed in modern times by Christian Jürgensen Thomsen, for classifying and studying ancient societies.

Under his command, a modern update of the doctrinal system called Bewegungskrieg (" maneuver warfare ") and its associated leadership system called Auftragstaktik (" mission tactics "; i. e., units are assigned missions ; local commanders decide how to achieve those missions ) was developed, which was a critical advantage and a major reason for the success of blitzkrieg.

BeOS was built for digital media work and was written to take advantage of modern hardware facilities such as symmetric multiprocessing by utilizing modular I / O bandwidth, pervasive multithreading, preemptive multitasking and a 64-bit journaling file system known as BFS.

At this period the thirty-year old Helion was ranked `` as one of the mature leaders of the modern movement '', according to Herbert Read, `` and in the direct line of descent from Cezanne, Seurat, Gris and Leger ''.

I fled, however, not from what might have been the natural fear of being unable to disguise from you that the things about my bridegroom -- in the sense you meant the word `` things '' -- which you had been galvanizing yourself to tell me as a painful part of your maternal duty were things which I had already insisted upon finding out for myself ( despite, I may now say, the unspeakable awkwardness of making the discovery on principle, yes, on principle, and in cold blood ) because I was resolved, as a modern woman, not to be a mollycoddle waiting for Life but to seize Life by the throat.

On matters of race he was similarly inflexible: `` Most of the modern Latin races seem to have inherited the rigidity of the Roman mind ''.

It was logical that he would come up with the figure of the modern jazz musician.

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' ''.

Wilson stressed the fact that clear as this was, they must have a better church, a more business-like conduct of the church organization, and an effort to get this religious center out of its rut of wild worship into a modern church organization.

Never rebuilt, the bridge was strengtened in 1938 by two extra piers, a concrete floor, and a walk-way along the upper side in order to care for modern traffic.

The modern student, who knows what was to come next, is likely to place first the factors of change which are visible in the eighth century.

The latter now furnishes the area with electricity distributed from a modern sub-station at Manchester Depot which was put into operation February 19, 1930 and was improved in January 1942 by the installation of larger transformers.

New, indeed, is Luther's perception, but not modern, as anyone knows who has ever tried to make intelligible to modern students what Luther was getting at.

In their book, American Skyline, Christopher Tunnard and Henry Hope Reed argue that Franklin Roosevelt's New Deal was what made the modern suburb a possibility -- a fine ironical argument, when you consider how suburbanites tend to vote.

Just as Hart Crane had little influence on anyone except very reactionary writers -- like Allen Tate, for instance, to whom Valery was the last word in modern poetry and the felicities of an Apollinaire, let alone a Paul Eluard were nonsense -- so Dylan Thomas's influence has been slight indeed.

The John Harvey arrived in Bari, a port on the Adriatic, on November 28th, making for Porto Nuovo, which, as the name indicates, was the ancient city's new and modern harbor.

That the dream was a reality on the infinite progressions of universal, gradient frequencies, across which the modern professor and the priest of ancient Nippur met??

Left alone while her husband was miles away in the city, the modern wife assumed more and more duties normally reserved for the male.

It was a fairly modern motel with quite a bit of electrical display in front.

It was still a very big world, despite all the modern cant to the contrary.

The house was modern, large, on five acres.

Airy and bright, the apartment was furnished with good modern furniture, rugs, and draperies.

There was a garage and a modern barn in the rear, all of it standing between two large flat fields planted in early potatoes.

Its power unit, however, was derived from the reactor of the more modern American nuclear submarine Skipjack.