With the invention of the backspring, pocket-size utility knives were introduced with folding blades and other folding tools designed to increase the utility of the overall design.

With the invention of the revolver in 1818, handguns capable of holding multiple rounds became popular.

With the invention of the printing press by Johannes Gutenberg in 1447, it became feasible to print books and maps for a larger customer basis.

With the invention of the knitting machine, however, knitting " by hand " became a useful but non-essential craft.

With the invention of gunpowder, the traditional methods of defense became less and less effective against a determined siege.

With the invention of moveable type in Europe began an increase of printed material.

With the invention of bubble chambers and spark chambers in the 1950s, experimental particle physics discovered a large and ever-growing number of particles called hadrons.

With the invention of gunpowder, cannon and ( in modern times ) mortars and howitzers, the traditional methods of defence became less effective against a determined siege.

With the invention of the Bessemer process in the mid-19th century, steel became an inexpensive mass-produced material.

With the exception of Australia, where spear throwing technology such as the woomera predominated, the sling became common all over the world, although it is not clear whether this occurred because of cultural diffusion or independent invention.

With the invention of the teletypewriter, telegraphic encoding became fully automated.

With the invention of transistors at Bell labs, in 1947, the field of electronics got a new direction which shifted from power consuming vacuum tubes to solid state devices.

With the invention of torsion spring bundle technology, the first ballista was built.

With the invention of the polymerase chain reaction ( PCR ) technique, DNA profiling took huge strides forward in both discriminating power and the ability to recover information from very small ( or degraded ) starting samples.

With the advent of flexible film, Thomas Alva Edison quickly set out on his invention, the Kinetoscope, which was first shown at the Brooklyn Institute of Arts and Sciences on 9 May 1893.

With the invention of synthetic refrigerants based mostly on a chlorofluorocarbon ( CFC ) chemical, safer refrigerators were possible for home and consumer use.

Arabesk is folk music style that originally appeared in Turkey during the 1960s as a reflection of migrant workers first experience of immigration inside the homeland As Brown writes, “ With its bittersweet longing for a homeland left behind — a homeland most Turkish-German youngsters could never have seen expect perhaps on vacation — Arabesk expresses a nostalgia and cultural pessimism that dovetails perfectly with hip hop ’ s invention of community through stories of displacement ” ( Brown, 144 ).

With the ending of the slave trade, the invention of the cotton gin, and opening up of new territories in the Deep South, suddenly there was a growing market for the trading of slaves.

With John Mauchly he invented the first general-purpose electronic digital computer ( ENIAC ), presented the first course in computing topics ( the Moore School Lectures ), founded the first commercial computer company ( the Eckert – Mauchly Computer Corporation ), and designed the first commercial computer in the U. S., the UNIVAC, which incorporated Eckert's invention of the mercury delay line memory.

With the invention of the steam engine, the demand for tar and turpentine slowly evaporated as fewer wooden ships were constructed.

With the invention of the automobile, Monterey became less of a resort town.

With the invention of anti-phantom, highly visible SIRA lenses, lights of could be designed to give the same output as plain lenses, so a larger surface area was unnecessary.

With the invention and development of the transistor in the 1950s and 1960s, metal detector manufacturers and designers made smaller lighter machines with improved circuitry, running on small battery packs.

With the efforts to analyze the atmosphere in the 17th and 18th century, gases such as hydrogen were discovered which in turn led to the invention of hydrogen balloons.

With new mechanization the modern farmer must perform the work of six men: a machine stands between the agrarian and his soil.

With the advent of Sir Arthur Conan Doyle's Sherlock Holmes, the development of the modern private detective begins.

With modern techniques of woodworking and the multitude of cutting tools, fixtures, and attachments available, the drill press has become a basic home workshop tool.

With the withdrawal of these states, a congress was called on the holy island of Delos to institute a new alliance to continue the fight against the Persians ; hence the modern designation " Delian League ".

With ancient and modern history he rendered himself well acquainted and he also began to acquire some of the continental languages.

With the rise of education, cheap newspapers and cheap printing, modern concepts of fame and celebrity began to develop, and the beneficiaries of this were not slow to cash in on this by producing autobiographies.

With modern instrumentation these tests are rarely used but can be useful for educational purposes and in field work or other situations where access to state-of-the-art instruments are not available or expedient.

With modern shooting techniques, there is very little value to shooting with a weapon in each hand.

With modest changes in the building's position, modern krypton-or argon-insulated windows permit normal-looking windows to provide passive solar heat without compromising insulation or structural strength.

With the internationalism of modern architecture and design, there were many exchanges between the Vkhutemas and the Bauhaus.

With modern biotechnology, these genes can be used as targets for the development of effective new therapies, which could significantly shorten the drug discovery process.

With utilities and programs often included free with modern operating systems, many users can make their own animated movies and shorts.

With new acquired powers, Khrushchev was able to appoint associates to the leadership in Georgia, Azerbaijan, Ukraine, Armenia and Moldavia ( modern Moldova ), while Malenkov, in contrast, was able to appoint an associate to leadership only in Moscow.

With modern processing power and memory, some synthesizer has been produced that offer a variety of synthesis options.

With the advent of modern science fiction from the 1950s to the present day, Flatland has seen a revival in popularity, especially among science fiction and cyberpunk fans.

With increasing concern over both the methods and products of modern industrial agriculture, there has been a growing trend toward sustainable agricultural practices.

With the existence of modern independent states, each with its own legislative system, or its own body of ulamas, each country develops and applies its own rules, based on its own interpretation of religious prescriptions.

With the development of modern microscopes in the 20th century, the discovery was confirmed.

With the advent of modern plastics, the amount of skill required to get the basic shape accurately shown for any given subject was lessened, making it easier for people of all ages to begin assembling replicas in varying scales.

With these light strong instruments and modern wireless amplification these musicians can easily play standing up, move, and even incorporate dance on stage while playing their electric harps.

With the foundation of the modern, secular Republic of Turkey, Mustafa Kemal Atatürk removed religion from the sphere of public policy and restricted it exclusively to that of personal morals, behavior and faith.

With the borders of the modern state at the crossroads of the Bantu, Nilo-Saharan and Afro-Asiatic ethno-linguistic areas of Africa, Kenya is a truly multi-ethnic state.

With the exception of hydrogen and its isotopes, the effect is usually small, but is measurable with modern instrumentation.

With the development of archaeology and the application of modern techniques, many previously lost cities have been rediscovered.

With the introduction of electric light, this effect would have gone away, as light would be available every night, explaining the negative results of modern studies.