Replica Ray Ban Sunglasses Dutch Inventions And Di

Jackson's personal life generated significant controversy. His changing appearance was noticed from the early 1980s, his skin appearing paler and his facial features becoming almost androgynous. He was accused in 1993 of child ######ual abuse, and though no charges were brought, his health suffered when he started using painkillers to cope with the stress. He married twice, first in 1994 and again in 1996, and brought up three children, one of them with a surrogate mother, actions that triggered more speculation about his life. In 2005, he was tried and acquitted of different child molestation allegations, which provoked a further decline in his health. Jackson died at the age of 50 on June 25, 2009, in Los Angeles, after suffering a cardiac arrest. His memorial service was broadcast live around the world, watched by up to one billion people.
Inventions
The microscope
In 1590 the Dutchmen Hans and Zacharias Janssen (Father and son) invented the first compound microscope. It would have a single glass lens of short focal length for the objective, and another single glass lens for the eyepiece or ocular. A resident of Delft, Anton van Leeuwenhoek, effectively launched high-power microscopy using single-lens, simple microscopes. With these modest instruments he discovered the world of micro-organisms. Modern microscopes are far more complex, with multiple lens components in both objective and eyepiece assemblies. These multi-component lenses are designed to reduce aberrations, particularly chromatic aberration and spherical aberration. In modern microscopes the mirror is replaced by a lamp unit providing stable, controllable illumination. However, today's optical microscopes evolved from these early Dutch designs.[citation needed]
The telescope
Hans Lippershey created and disseminated the first practical telescope. Crude telescopes and spyglasses may have been created much earlier, but Lippershey is believed to be the first to apply for a patent for his design (beating out Jacob Metius by a few weeks) and make it available for general use in 1608. He failed to receive a patent but was handsomely rewarded by the Dutch government for copies of his design. A description of Lippershey's instrument quickly reached Galileo Galilei, who created a working design in 1609, with which he made the observations found in his Sidereus Nuncius of 1610.[citation needed]
There is a legend that Lippershey's children actually discovered the telescope while playing with flawed lenses in their father's workshop, but this may be apocryphal. The son of Zacharias Janssen of Middelburg subsequently testified that Lippershey had stolen the idea for his instrument from his father -at a time when Janssen would have only been two years old.[citation needed]
Lippershey crater, on the Moon, is named after him.[citation needed]
The pendulum clock
A pendulum clock uses a pendulum as its time base. From their invention until about 1930, the most accurate clocks were pendulum clocks. Pendulum clocks cannot operate on vehicles, because the accelerations of the vehicle drive the pendulum, causing inaccuracies. See marine chronometer for a discussion of the problems of navigational clocks.The pendulum clock was invented by Christian Huygens in 1656, based on the pendulum introduced by Galileo Galilei.[citation needed]
Pendulum clocks remained the mechanism of choice for accurate timekeeping for centuries, with the Fedchenko observatory clocks produced from after World War II up to around 1960 marking the end of the pendulum era as time standards considered.[citation needed]
Pendulum clocks remain popular for domestic use.
The electrocardiograph
In the 19th century it became clear that the heart generated electricity. The first to systematically approach the heart from an electrical point-of-view was Augustus Waller, working in St Mary's Hospital in Paddington, London. In 1911 he still saw little clinical application for his work. The breakthrough came when Willem Einthoven Replica Ray Ban Sunglasses Burberry Outlet - Learn, working in Leiden, The Netherlands, used the string galvanometer invented by him in 1901, which was much more sensitive than the capillary electrometer that Waller used. Einthoven assigned the letters P, Q, R, S and T to the various deflections, and described the electrocardiographic features of a number of cardiovascular disorders. He was awarded the 1924 Nobel Prize for Physiology or Medicine for his discovery.[citation needed]
The phase contrast microscope
As light travels through a medium other than vacuum, interaction with this medium causes its amplitude and phase to change in a way which depends on properties of the medium. Changes in amplitude give rise to familiar absorption of light which gives rise to colours when it is wavelength dependent. The human eye measures only the energy of light arriving on the retina, so changes in phase are not easily observed, yet often these changes in phase carry a large amount of information.[citation needed]
The same holds in a typical microscope, i.e., although the phase variations introduced by the sample are preserved by the instrument (at least in the limit of the perfect imaging instrument) this information is lost in the process which measures the light. In order to make phase variations observable, it is necessary to combine the light passing through the sample with a reference so that the resulting interference reveals the phase structure of the sample.[citation needed]
This was first realized by Frits Zernike during his study of diffraction gratings. During these studies he appreciated both that it is necessary to interfere with a reference beam, and that to maximise the contrast achieved with the technique, it is necessary to introduce a phase shift to this reference so that the no-phase-change condition gives rise to completely destructive interference.[citation needed]
He later realised that the same technique can be applied to optical microscopy. The necessary phase shift is introduced by rings etched accurately onto glass plates so that they introduce the required phase shift when inserted into the optical path of the microscope. When in use, this technique allows phase of the light passing through the object under study to be inferred from the intensity of the image produced by the microscope. This is the phase-contrast technique.[citation needed]
In optical microscopy many objects such as cell parts in protozoans, bacteria and sperm tails are essentially fully transparent unless stained (and therefore killed). The difference in densities and composition within these objects however often give rise to changes in the phase of light passing through them, hence they are sometimes called "phase objects". Using the phase-contrast technique makes these structures visible and allows their study with the specimen still alive.
This phase contrast technique proved to be such an advancement in microscopy that Zernike was awarded the Nobel prize (physics) in 1953.[citation needed]
The compact disc
The compact disc was jointly developed by Philips and Sony. In the early 1970s, Philips' researchers started experiments with "audio-only" optical discs, and at the end of the 1970s, Philips, Sony, and other companies presented prototypes of digital audio discs. Philips publicly demonstrated a prototype of an optical digital audio disc at a press conference titled "Philips Introduce Compact Disc" in Eindhoven, The Netherlands on March 8, 1979. Sony first publicly demonstrated an optical digital audio disc in September 1976. In September 1978, they demonstrated an optical digital audio disc with a 150 minute playing time Replica Ray Ban Sunglasses, and with specifications, 44.056 kHz sampling rate, 16-bit linear resolution, cross-interleaved error correction code, that were very similar to those of the Compact Disc introduced in 1982. Technical details of Sony's digital audio disc were presented during the 62nd AES Convention, held on March 13-16, 1979 in Brussels. Later that year, Sony and Philips Consumer Electronics (Philips) set up a joint task force of engineers to design a new digital audio disc. The task force, led by prominent members Kees Schouhamer Immink and Toshitada Doi (), progressed the research into laser technology and optical discs that had been started independently by Philips and Sony in 1977 and 1975, respectively. After a year of experimentation and discussion, the taskforce produced the Red Book, the Compact Disc standard. Philips contributed the general manufacturing process, based on video Laserdisc technology. Philips also contributed Eight-to-Fourteen Modulation (EFM), which offers both a long playing time and a high resilience against disc defects such as scratches and fingerprints, while Sony contributed the error-correction method, CIRC. The Compact Disc Story, told by a former member of the taskforce, gives background information on the many technical decisions made, including the choice of the sampling frequency, playing time, and disc diameter.
The sawmill
Cornelis Corneliszoon (Born 1550 in Uitgeest - died 1600) was the inventor of the sawmill. Prior to the invention of sawmills, boards were rived and planed, or more often sawn by two men with a whipsaw using saddleblocks to hold the log and a pit for the pitman who worked below and got the benefit of the sawdust in his eyes. Sawing was slow and required strong and enduring men. The topsawer had to be the stronger of the two because the saw was pulled in turn by each man, and the lower had the advantage of gravity. The topsawyer also had to guide the saw so the board was of even thickness. This was often done by following a chalkline.[citation needed]
Early sawmills simply adapted the whipsaw to mechanical power, generally driven by a water wheel to speed up the process. The circular motion of the wheel was changed to back-and-forth motion of the saw blade by a pitman thus introducing a term used in many mechanical applications. A pitman is similar to a crankshaft but used in reverse. A crankshaft converts back-and-forth motion to circular motion.[citation needed]
Generally only the saw was powered and the logs had to be loaded and moved by hand. An early improvement was the development of a movable carriage, also water powered, to steadily move the log through the saw blade.[citation needed]
The road-rule enforcement camera
Gatso speed camera
Dutch company Gatsometer BV, founded by the 1950s rally driver Maurice Gatsonides, invented the first road-rule enforcement cameras. Gatsonides wished to better monitor his speed around the corners of a race track and came up with the device in order to improve his time around the circuit . The company developed the first radar for use with road traffic, and is the world's largest supplier of speed camera systems. Because of this, in some countries speed cameras are sometimes referred to as "Gatsos". They are also sometimes referred to as "photo radar", even though many of them do not use radar.[citation needed]
The first systems introduced in the late 1960s used film cameras to take their pictures. From the late 1990s, digital cameras began to be introduced. Digital cameras can be fitted with a modem or other electronic interface to transfer images to a central processing location automatically, so they have advantages over film cameras in speed of issuing fines, and operational monitoring. However, film-based systems still generally provide superior image quality in the variety of lighting conditions encountered on roads, and in some jurisdictions are required by the courts due to the ease with which digital images may be modified. New film-based systems are still being sold.[citation needed]
The leyden jar
The Leyden jar was the original capacitor, developed by Pieter van Musschenbroek in the 18th century and used to conduct many early experiments in electricity.[citation needed]
The device was a glass jar coated inside and out with metal. The inner coating was connected to a rod that passed through the lid and ended in a metal ball. Typical designs consist of an electrode and a plate, each of which stores an opposite charge. These two elements are conductive and are separated by an insulator (e.g., the glass dielectric). The charge is stored at the surface of the elements, at the boundary with the dielectric.[citation needed]
The pyrometer
The pyrometer, invented by Pieter van Musschenbroek, is a temperature measuring device, which may consist of several different arrangements.[citation needed]
A simple type of pyrometer uses a thermocouple placed either in the furnace or on the item to be measured. The voltage output of the thermocouple is read from a digital or analog meter calibrated in degrees Celsius (C) or Fahrenheit (F). There are many different types of thermocouple available, and these can be used to measure temperatures from -200 C to above 1500 C.[citation needed]
The term can also be applied to the so-called optical pyrometer, a class of non-contact instruments measuring temperatures above 600 degrees Celsius. These are typically used to measure temperatures of glowing hot metals in a steel mill or foundry.[citation needed]
One of the most common non-contact pyrometers is the absorption-emission pyrometer which is a thermometer for determining gas temperature from measurement of the radiation emitted by a calibrated reference source before and after this radiation has passed through and been partially absorbed by the gas. Both measurements are made over the same wavelength interval.[citation needed]
The submarine
Cornelius Drebbel, was the inventor of the first navigable submarine, while working for the Royal Navy. Using William Bourne's design from 1578, he manufactured a steerable submarine with a leather-covered wooden frame. Between 1620 and 1624 Drebbel successfully built and tested two more submarines, each one bigger than the last. The final (third) model had 6 oars and could carry 16 passengers. This model was demonstrated to King James I in person and several thousand Londoners. The submarine stayed submerged for three hours and could travel from Westminster to Greenwich and back, cruising at a depth of from 12 to 15 feet (4 to 5 metres). This submarine was tested many times in the Thames, but never used in combat.[citation needed]
The artificial kidney
An artificial kidney is the machine and its related devices which allow to clean the blood of patients who have a temporary (acute) or an ongoing (chronic) failure of their kidneys. The procedure of cleaning the blood by this means is called dialysis, a type of renal replacement therapy which is used to provide an artificial replacement for lost kidney function due to renal failure. It is a life support treatment and does not treat any kidney diseases.[citation needed]
Dialysis may be used for very sick patients who have suddenly lost their kidney function (acute renal failure) or for quite stable patients who have permanently lost their kidney function (end stage renal failure).[citation needed]
When healthy, the kidneys remove waste products (for example potassium, acid and urea) from the blood and also remove excess fluid in the form of urine. Dialysis treatments have to duplicate both of these functions as dialysis (waste removal) and ultrafiltration (fluid removal).[citation needed]
Submarine snorkel
A submarine snorkel is a device that allows a submarine to operate submerged while still taking in air from above the surface. It was invented by the Dutch shortly before World War II and copied by the Germans during the war for use by U-Boats. Its common military name is snort.[citation needed]
Until the advent of nuclear power, submarines were designed to operate on the surface most of the time and submerge only for evasion or for rare daylight attacks. In 1940, at night, a U-boat was safer on the surface than submerged because ASDIC sonar could detect boats underwater but was almost useless against a surface vessel. However, with the continued improvement in methods of radar detection and attack, as the war progressed, the U-boat was forced to spend more and more time underwater running on electric motors that gave speeds of only a few knots and with very limited endurance. A submarine that stayed underwater for more than a few hours also encountered various disposal problems and had to store garbage internally, further fouling boats already infamous for their odors.[citation needed]
In November 1925, Capt. Pericle Ferretti of the technical corps of the Italian Navy ran tests with a ventilation pipe gear installed on board the ex-US H-3 submarine received by the Regia Marina during the 1st World War; the tests were largely successful and a similar system was designed for the Sirena class, but was eventually scrapped, hence the following snorkel systems were not based on his gear.[citation needed]
The 1940 defeat of the Netherlands by the Wehrmacht (German Defense Forces), and the capture of O-25 and O-26 was a stroke of luck for the German Kriegsmarine. The Dutch had been working on a device that they had named the snuiver (lit: "sniffer"). The Dutch navy had been experimenting as early as 1938 with a simple pipe system on the submarines O-19 and O-20 that enabled them to travel at periscope depth operating on its diesels with almost unlimited underwater range while charging the propulsion batteries.[citation needed]
The Kriegsmarine, at first, gave some consideration to the snorkel as a means to take fresh air into the boats but saw no need to run the diesel engines underwater. In 1943, however, as more U-boats were lost, it was retrofitted to the VIIC and IXC classes and designed into the new XXI and XXIII types.[citation needed]
The first Kriegsmarine boat to be fitted with a snorkel was U-58 which experimented with the equipment in the Baltic Sea during the summer of 1943. Boats began to use it operationally in early 1944, and by June 1944 about half of the boats stationed in the French bases had snorkels fitted.[citation needed]
On Type VII U-boats the snorkel folded forward and was stored in a recess on the port side of the hull, while on the IX Types the recess was on the starboard side. The XXI and XXIII types both had telescopic masts that rose vertically through the conning tower close to the periscope.[citation needed]
Snorkels created several problems for their users. A U-boat with a snorkel raised was limited to six knots to avoid breaking the tube, and its sound detection gear was deafened by the roaring of the air being sucked down the tube. Most dramatically, snorkels were equipped with automatic valves to prevent seawater from being sucked into the diesels, but when these valves slammed shut the engines would draw air from the boat itself before shutting down, causing a partial vacuum which was extremely painful to the ears of the crew and sometimes even ruptured eardrums. This last problem still exists in later model diesel submarines, but to a limited extent because of high vacuum cut-off sensors that shutdown the engines when the vacuum in the ship reaches a pre-set point.[citation needed]
Modern snorkel induction masts use a fail-safe design consisting of compressed air, controlled by a simple electrical circuit, to hold the "head valve" open against the pull of a powerful spring. Seawater washing over the mast shorts out exposed electrodes on top, breaking the control circuit. This vents the compressed air and allows the head valve to slam shut. When the electrodes are again clear of the water, the circuit is re-energized and the valve reopens.[citation needed]
Discoveries
Bacteria
The first bacteria were observed by Anton van Leeuwenhoek in 1676 using a single-lens microscope of his own design. The creatures he saw were described as small creatures. The name bacterium was introduced much later, by Ehrenberg in 1828, derived from the Greek word meaning "small stick". Because of the difficulty in describing individual bacteria and the importance of their discovery to fields such as medicine, biochemistry and geochemistry, the history of bacteria is generally described as the history of microbiology.[citation needed]
Spermatozoa
A spermatozoon or spermatozoan (pl. spermatozoa), from the ancient Greek (seed) and (alive) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote can grow into a new organism, such as a human being.[citation needed]
Sperm cells contribute half of the genetic information to the diploid offspring. In mammals, the ###### of the offspring is determined by the sperm cells: a spermatozoon bearing a Y chromosome will lead to a male (XY) offspring, while one bearing an X chromosome will lead to a female (XX) offspring ( the ovum always provides an X chromosome). Sperm cells were first observed by a student of Antoni van Leeuwenhoek in 1677. Leeuwenhoek pictured sperm cells with great accuracy.[citation needed]
Infusoria
Infusoria is a collective term for minute aquatic creatures like ciliate, euglena, paramecium, protozoa and unicellular algae that exist in freshwater pond water. However, in formal classification microorganism called infusoria belongs to Kingdom Animalia, Phylum Protozoa, Class Ciliates (Infusoria).They were first discovered by Antoni van Leeuwenhoek.[citation needed]
Amongst Van Leeuwenhoek's many discoveries are: In 1674 he discovered infusoria (dated zological category,) in 1676 he discovered bacteria, in 1677 he discovered spermatozoi and in 1682 he discovered the banded pattern of muscular fibers.[citation needed]
Plant respiration and photosynthesis
Leaf. The primary site of photosynthesis in plants.
Photosynthesis and plant respiration is an important biochemical process in which plants, algae, and some bacteria convert the energy of sunlight to chemical energy.The process was discovered by Jan Ingenhousz in 1779. The chemical energy is used to drive synthetic reactions such as the formation of sugars or the fixation of nitrogen into amino acids, the building blocks for protein synthesis. Ultimately, nearly all living things depend on energy produced from photosynthesis for their nourishment, making it vital to life on Earth. It is also responsible for producing the oxygen that makes up a large portion of the Earth's atmosphere. Organisms that produce energy through photosynthesis are called photoautotrophs. Plants are the most visible representatives of photoautotrophs, but it should be emphasized that bacteria and algae also contribute to the conversion of free energy into usable energy.[citation needed]
The rings of Saturn
The rings of Saturn are a series of planetary rings that orbit the planet Saturn. They consist largely of ice and dust.
Galileo Galilei was the first person to observe Saturn's ring in 1610, although with his weak telescope, he could barely resolve them, and thought they were two moons on either side of the planet. In 1655, Christian Huygens was the first person to propose that there was a ring surrounding Saturn.
Australia
Hollandia Nova, 1659 map prepared by Joan Blaeu based on voyages by Abel Tasman and Willem Jansz, this image shows a French edition of 1663
[citation needed]
The first undisputed sighting of Australia by a European was made in 1606. The Dutch vessel Duyfken, captained by Willem Janszoon, followed the coast of New Guinea, missed Torres Strait, and explored perhaps 350?km of western side of Cape York, in the Gulf of Carpentaria, believing the land was still part of New Guinea. The Dutch made one landing, but were promptly attacked by Aborigines and subsequently abandoned further exploration.[citation needed]
The discovery that sailing east from the Cape of Good Hope until land was sighted, and then sailing north along the west coast of Australia was a much quicker route than around the coast of the Indian Ocean made Dutch landfalls on the west coast inevitable. Most of these landfalls were unplanned. The first such landfall was in 1616, when Dirk Hartog landed on what is now called Dirk Hartog Island, off the coast of Western Australia, and left behind an inscription on a pewter plate. (This plate may now be seen in the Rijksmuseum in Amsterdam.) The most famous and bloodiest result was the mutiny and murder that followed the wreck of the Batavia.[citation needed]
Further voyages by Dutch ships explored the north coast of Australia between 1623 and 1636, giving Arnhem Land its present-day name. In 1642, Abel Tasman sailed from Mauritius and on 24 November, sighted Tasmania, before discovering New Zealand, Fiji and visiting Papua New Guinea en route to Batavia (now Jakarta). He named Tasmania Van Diemen's Land, after Anthony van Diemen, the Dutch East India Company's Governor General at Batavia, who had commissioned his voyage. Tasman claimed Van Diemen's Land for the Netherlands. In 1644 he made a second voyage, on which he mapped the north coast of Australia from Cape York westward. Other notable Dutch explorers of the Australian coast include Franois Thyssen (with Pieter Nuyts on board) who discovered much of the south coast in 1627 and Willem de Vlamingh who mapped the west coast in 1696-1697.
References
^ http://news.bbc.co.uk/1/hi/technology/6950845.stm
^ a b "How the CD was developed". BBC News. 2007-08-17. http://news.bbc.co.uk/2/hi/technology/6950933.stm. Retrieved 2007-08-17.?
^ "Philips Compact Disc". Philips. http://www.philipsmuseumeindhoven.nl/phe/products/e_cd.htm. Retrieved 2009-02-14.?
^ "A Long Play Digital Audio Disc System". AES. http://www.aes.org/e-lib/browse.cfm?elib=2912. Retrieved 2009-02-14.?
^ Kees A. Schouhamer Immink (1998). "The CD Story". Journal of the AES 46: 458465. http://www.exp-math.uni-essen.de/~immink/pdf/cdstory.htm. Retrieved 2007-02-09.?
^ "Historical Background of Saturn's Rings". http://www.solarviews.com/eng/saturnbg.htm. Retrieved 2006-03-08.?
^ a b Raymond John Howgego: Encyclopedia of Exploration to 1800, 2003. Potts Point NSW: Hordern House. ISBN 1-875567-36-4.
^ Eric Newby: The Rand Mc.Nally World Atlas of Exploration, 1975. London: Mitchell Beazley. ISBN 0-528-83015-5.
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Categories: Inventions | History of technology | Inventions by country | History of science and discoveries by region | Lists of inventions or discoveries | Economic history of the NetherlandsHidden categories: Articles with unsourced statements from March 2009 | All articles with unsourced statements | Articles with unsourced statements from December 2009 | Accuracy disputes from December 2009 | All accuracy disputes | Articles with unsourced statements from January 2010
The seventh child of the Jackson family, he made his debut in 1968 as a member of The Jackson 5, beginning a solo career in 1971. His 1982 album Thriller remains the best-selling album of all time, with four others-Off the Wall (1979), Bad (1987), Dangerous (1991), and History (1995)-among the best selling. He popularized several physically complicated dance moves, such as the robot and the moonwalk, now iconic. He is widely credited with having transformed the music video from a promotional tool into an art form, with videos such as Thriller, "Beat It" and "Billie Jean" making him the first African American to amass a strong crossover following on MTV, and others, such as "Black or White" and "Scream", ensuring his popularity well into the 1990s.