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Jahrtausendturm
Jahrtausendturm (german: millennium tower) is, at , one of the highest wooden towers in the world. It was established on the occasion of the Bundesgartenschau 1999 in the Magdeburger Elbauenpark in Magdeburg, Germany. The tower houses an exhibition on the development of sciences, which is supported by many descriptive experiments with which the visitor can interact. One notable example is a powerful telescope through which visitors can observe the distant clock-face on the Magdeburger cathedral. Construction The intentionally inclined designed tower leads its visitor through an exhibit representing 6,000 years of human history. The tower has six floors, five of which comprise the history exhibit. The individual floors are accessible by means of an internal stairway, as well as a spiral wooden stair on the tower's exterior. The 8,000 square meter exhibition surface offers approximately 80 interactive experimental setups for the visitor to manipulate. In addition, the tower offe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jahrtausendturm
Jahrtausendturm (german: millennium tower) is, at , one of the highest wooden towers in the world. It was established on the occasion of the Bundesgartenschau 1999 in the Magdeburger Elbauenpark in Magdeburg, Germany. The tower houses an exhibition on the development of sciences, which is supported by many descriptive experiments with which the visitor can interact. One notable example is a powerful telescope through which visitors can observe the distant clock-face on the Magdeburger cathedral. Construction The intentionally inclined designed tower leads its visitor through an exhibit representing 6,000 years of human history. The tower has six floors, five of which comprise the history exhibit. The individual floors are accessible by means of an internal stairway, as well as a spiral wooden stair on the tower's exterior. The 8,000 square meter exhibition surface offers approximately 80 interactive experimental setups for the visitor to manipulate. In addition, the tower offe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jahrtausendturm Of Magdeburg In Mini Europe
Jahrtausendturm (german: millennium tower) is, at , one of the highest wooden towers in the world. It was established on the occasion of the Bundesgartenschau 1999 in the Magdeburger Elbauenpark in Magdeburg, Germany. The tower houses an exhibition on the development of sciences, which is supported by many descriptive experiments with which the visitor can interact. One notable example is a powerful telescope through which visitors can observe the distant clock-face on the Magdeburger cathedral. Construction The intentionally inclined designed tower leads its visitor through an exhibit representing 6,000 years of human history. The tower has six floors, five of which comprise the history exhibit. The individual floors are accessible by means of an internal stairway, as well as a spiral wooden stair on the tower's exterior. The 8,000 square meter exhibition surface offers approximately 80 interactive experimental setups for the visitor to manipulate. In addition, the tower offe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jahrtausendturm - Interior
Jahrtausendturm (german: millennium tower) is, at , one of the highest wooden towers in the world. It was established on the occasion of the Bundesgartenschau 1999 in the Magdeburger Elbauenpark in Magdeburg, Germany. The tower houses an exhibition on the development of sciences, which is supported by many descriptive experiments with which the visitor can interact. One notable example is a powerful telescope through which visitors can observe the distant clock-face on the Magdeburger cathedral. Construction The intentionally inclined designed tower leads its visitor through an exhibit representing 6,000 years of human history. The tower has six floors, five of which comprise the history exhibit. The individual floors are accessible by means of an internal stairway, as well as a spiral wooden stair on the tower's exterior. The 8,000 square meter exhibition surface offers approximately 80 interactive experimental setups for the visitor to manipulate. In addition, the tower offe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magdeburg
Magdeburg (; nds, label=Low Saxon, Meideborg ) is the capital and second-largest city of the German state Saxony-Anhalt. The city is situated at the Elbe river. Otto I, the first Holy Roman Emperor and founder of the Archdiocese of Magdeburg, was buried in the city's cathedral after his death. Magdeburg's version of German town law, known as Magdeburg rights, spread throughout Central and Eastern Europe. In the Late Middle Ages, Magdeburg was one of the largest and most prosperous German cities and a notable member of the Hanseatic League. One of the most notable people from the city is Otto von Guericke, famous for his experiments with the Magdeburg hemispheres. Magdeburg has been destroyed twice in its history. The Catholic League sacked Magdeburg in 1631, resulting in the death of 25,000 non-combatants, the largest loss of the Thirty Years' War. During the World War II the Allies bombed the city in 1945 and destroying much of it. After World War II the city belonged t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elbauenpark
The Elbauenpark is a family and leisure park in Magdeburg, capital city of Saxony-Anhalt, Germany. The park area is about 100 hectares and consists of the parts ''Kleiner Anger'' and ''Großer Anger''. The park areas are connected with a pedestrian bridge over the ''Herrenkrugstraße''. The park has a total of four combined entrances and exits as well as three exits. According to the Stern magazine, the Elbauenpark is the best leisure attraction in Saxony-Anhalt. Magazin Stern in der Ausgabe 27/2013 im Freizeitatlas Deutschland History It was created on the occasion of the 1999 in Magdeburg on the ''Cracauer ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Printing Press
A printing press is a mechanical device for applying pressure to an inked surface resting upon a printing, print medium (such as paper or cloth), thereby transferring the ink. It marked a dramatic improvement on earlier printing methods in which the cloth, paper or other medium was brushed or rubbed repeatedly to achieve the transfer of ink, and accelerated the process. Typically used for texts, the invention and global spread of the printing press was one of the most influential events in the second millennium. In Germany, around 1440, goldsmith Johannes Gutenberg invented the movable-type printing press, which started the Printing Revolution. Modelled on the design of existing screw presses, a single Renaissance movable-type printing press could produce up to 3,600 pages per workday, compared to forty by History of typography in East Asia, hand-printing and a few by scribe, hand-copying. Gutenberg's newly devised matrix (printing), hand mould made possible the precise and ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Power
Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by nuclear ''fission'' of uranium and plutonium in nuclear power plants. Nuclear ''decay'' processes are used in niche applications such as radioisotope thermoelectric generators in some space probes such as ''Voyager 2''. Generating electricity from fusion power, ''fusion'' power remains the focus of international research. Most nuclear power plants use thermal reactors with enriched uranium in a Nuclear fuel cycle#Once-through nuclear fuel cycle, once-through fuel cycle. Fuel is removed when the percentage of neutron poison, neutron absorbing atoms becomes so large that a nuclear chain reaction, chain reaction can no longer be sustained, typically three years. It is then cooled for several years in on-site spent fuel pools before being tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Engineering
Genetic engineering, also called genetic modification or genetic manipulation, is the modification and manipulation of an organism's genes using technology. It is a set of technologies used to change the genetic makeup of cells, including the transfer of genes within and across species boundaries to produce improved or novel organisms. New DNA is obtained by either isolating and copying the genetic material of interest using recombinant DNA methods or by artificially synthesising the DNA. A construct is usually created and used to insert this DNA into the host organism. The first recombinant DNA molecule was made by Paul Berg in 1972 by combining DNA from the monkey virus SV40 with the lambda virus. As well as inserting genes, the process can be used to remove, or "knock out", genes. The new DNA can be inserted randomly, or targeted to a specific part of the genome. An organism that is generated through genetic engineering is considered to be genetically modified (GM) an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doppler Effect
The Doppler effect or Doppler shift (or simply Doppler, when in context) is the change in frequency of a wave in relation to an observer who is moving relative to the wave source. It is named after the Austrian physicist Christian Doppler, who described the phenomenon in 1842. A common example of Doppler shift is the change of pitch heard when a vehicle sounding a horn approaches and recedes from an observer. Compared to the emitted frequency, the received frequency is higher during the approach, identical at the instant of passing by, and lower during the recession. The reason for the Doppler effect is that when the source of the waves is moving towards the observer, each successive wave crest is emitted from a position closer to the observer than the crest of the previous wave. Therefore, each wave takes slightly less time to reach the observer than the previous wave. Hence, the time between the arrivals of successive wave crests at the observer is reduced, causing an increa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parallax
Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight and is measured by the angle or semi-angle of inclination between those two lines. Due to foreshortening, nearby objects show a larger parallax than farther objects when observed from different positions, so parallax can be used to determine distances. To measure large distances, such as the distance of a planet or a star from Earth, astronomers use the principle of parallax. Here, the term ''parallax'' is the semi-angle of inclination between two sight-lines to the star, as observed when Earth is on opposite sides of the Sun in its orbit. These distances form the lowest rung of what is called "the cosmic distance ladder", the first in a succession of methods by which astronomers determine the distances to celestial objects, serving as a basis for other distance measurements in astronomy forming the higher rungs of the ladder. Parallax also affects optical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caloric Theory
The caloric theory is an obsolete scientific theory that heat consists of a self-repellent fluid called caloric that flows from hotter bodies to colder bodies. Caloric was also thought of as a weightless gas that could pass in and out of pores in solids and liquids. The "caloric theory" was superseded by the mid-19th century in favor of the mechanical theory of heat, but nevertheless persisted in some scientific literature—particularly in more popular treatments—until the end of the 19th century. Early history In the history of thermodynamics, the initial explanations of heat were thoroughly confused with explanations of combustion. After J. J. Becher and Georg Ernst Stahl introduced the phlogiston theory of combustion in the 17th century, phlogiston was thought to be the ''substance of heat.'' There is one version of the caloric theory that was introduced by Antoine Lavoisier. Prior to Lavoisier's caloric theory, published references concerning heat and its existence, outs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio
Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by another antenna connected to a radio receiver. Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
