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Chemistry Set
A chemistry set is an educational toy allowing the user (typically a teenager) to perform simple chemistry experiments. History Forerunners The forerunners of the chemistry set were 17th century books on "natural magick", "which all excellent wise men do admit and embrace, and worship with great applause; neither is there any thing more highly esteemed, or better thought of, by men of learning." Authors such as Giambattista della Porta included chemical magic tricks and scientific puzzles along with more serious topics. The earliest chemistry sets were developed in the 18th century in England and Germany to teach chemistry to adults. In 1791, ''Description of a portable chest of chemistry : or, Complete collection of chemical tests for the use of chemists, physicians, mineralogists, metallurgists, scientific artists, manufacturers, farmers, and the cultivators of natural philosophy'' by Johann Friedrich August Göttling, translated from German, was published in English. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CHF Museum-Jan2013-055
CHF may refer to: Organizations * Chemical Heritage Foundation, former name of the Science History Institute, an institution that preserves and promotes understanding of the history of science * Chi Heng Foundation, a Hong Kong-based non-governmental organisation dedicated to addressing children impacted by AIDS * Chicago Humanities Festival, a foundation which organizes an annual series of lectures, concerts, and films * Children's Health Fund, a non-profit organization that provides health care to children and families * Children's Hunger Fund, a Christian non-profit organization that empowers local churches to meet the needs of impoverished community members * Commando Helicopter Force, a unit of the Royal Navy Fleet Air Arm * CHF International, former name of Global Communities, an international development and humanitarian aid organization * Community Health Fund, a Tanzanian health insurance scheme Science and technology * Congestive heart failure, a disease when the heart i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Cambridge
The University of Cambridge is a public collegiate research university in Cambridge, England. Founded in 1209 and granted a royal charter by Henry III in 1231, Cambridge is the world's third oldest surviving university and one of its most prestigious, currently ranked second-best in the world and the best in Europe by '' QS World University Rankings''. Among the university's most notable alumni are 11 Fields Medalists, seven Turing Award winners, 47 heads of state, 14 British prime ministers, 194 Olympic medal-winning athletes,All Known Cambridge Olympians . ''Hawks Club''. Retrieved 17 May 2019. and some of world history's most transformational and iconic figures across disciplines, including [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnny Horizon
Johnny Horizon was a mascot used by the Bureau of Land Management in the United States in the 1970s primarily for its anti-litter campaign. First used in 1968, and resembling a cigaretteless Marlboro Man, Johnny Horizon reached his greatest use in the years leading up to the United States Bicentennial celebration, with the ''Johnny Horizon '76 Program''. September 15, 1974 to October 15, 1974 was proclaimed ''Johnny Horizon '76 Clean Up America Month, 1974'' by President Gerald R. Ford. Like the better known Smokey Bear and Woodsy Owl characters of the United States Forest Service, use of the Johnny Horizon mascot was protected under Federal law (18 U.S.C. 714) beginning in 1970 until his protection was repealed in 1982. The character is no longer used by the Bureau. In 1971, a Johnny Horizon Environmental Test Kit was licensed by the U. S. Department of the Interior and produced by Parker Brothers. It included four air pollution tests and six water pollution tests for young ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnny Horizon Environmental Test Kit Mc87pq530
Johnny is an English language personal name. It is usually an affectionate diminutive of the masculine given name John, but from the 16th century it has sometimes been a given name in its own right for males and, less commonly, females. Variant forms of Johnny include Johnnie, Johnney, Johnni and Johni. The masculine Johnny can be rendered into Scottish Gaelic as . Notable people and characters named Johnny or Johnnie include: People Johnny * Johnny Adams (born 1932), American singer * Johnny Aba (born 1956), Papua New Guinean professional boxer * Johnny Abarrientos (born 1970), Filipino professional basketball player * Johnny Abbes García (1924–1967), chief of the government intelligence office of the Dominican Republic * Johnny Abel (1947–1995), Canadian politician * Johnny Abrego (born 1962), former Major League baseball player * Johnny Ace (1929–1954), American rhythm and blues singer * John Laurinaitis, (born 1962) also known as Johnny Ace, American wrestler and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert Lab Technician Set For Girls 1958
Gilbert may refer to: People and fictional characters *Gilbert (given name), including a list of people and fictional characters *Gilbert (surname), including a list of people Places Australia * Gilbert River (Queensland) * Gilbert River (South Australia) Kiribati * Gilbert Islands, a chain of atolls and islands in the Pacific Ocean United States * Gilbert, Arizona, a town * Gilbert, Arkansas, a town * Gilbert, Florida, the airport of Winterhaven * Gilbert, Iowa, a city * Gilbert, Louisiana, a village * Gilbert, Michigan, and unincorporated community * Gilbert, Minnesota, a city * Gilbert, Nevada, ghost town * Gilbert, Ohio, an unincorporated community * Gilbert, Pennsylvania, an unincorporated community * Gilbert, South Carolina, a town * Gilbert, West Virginia, a town * Gilbert, Wisconsin, an unincorporated community * Mount Gilbert (other), various mountains * Gilbert River (Oregon) Outer space * Gilbert (lunar crater) * Gilbert (Martian crater) Arts and ente ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, massa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Carlton Gilbert
Alfred Carlton Gilbert (February 15, 1884 – January 24, 1961) was an American inventor, athlete, magician, toy-maker and businessman. Gilbert invented the Erector Set and manufactured American Flyer Trains. Early life and education Gilbert was educated at the Tualatin Academy and attended Pacific University in nearby Forest Grove, Oregon, where he was a member of the Gamma Sigma Fraternity. He left Pacific after 1902 and transferred to Yale University, financing his education by working as a magician, and earning a degree in medicine. His thesis had the title ''The Genito-Urinary Phenomena of Athletes''. An accomplished athlete, he broke the world record for consecutive chin-ups (39) in 1900 and distance record for running long dive in 1902. He invented the pole vault box and set two world records in the pole vault including a record for 12′ 3″ (3.66 meters) at the Spring meet of the Irish American Athletic Club, held at Celtic Park, New York, in 1906. He tied for go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1940s Gilbert Chemistry Set 04
Year 194 ( CXCIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 ''Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus and Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * Battle of Issus: Septimius Severus marches with his army (12 legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao and Lü Bu fight for control over Yan Province; the battle lasts for over 100 days ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cloud Chamber
A cloud chamber, also known as a Wilson cloud chamber, is a particle detector used for visualizing the passage of ionizing radiation. A cloud chamber consists of a sealed environment containing a supersaturated vapour of water or alcohol. An energetic charged particle (for example, an alpha or beta particle) interacts with the gaseous mixture by knocking electrons off gas molecules via electrostatic forces during collisions, resulting in a trail of ionized gas particles. The resulting ions act as condensation centers around which a mist-like trail of small droplets form if the gas mixture is at the point of condensation. These droplets are visible as a "cloud" track that persists for several seconds while the droplets fall through the vapor. These tracks have characteristic shapes. For example, an alpha particle track is thick and straight, while a beta particle track is wispy and shows more evidence of deflections by collisions. Cloud chambers were invented in the early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geiger Counter
A Geiger counter (also known as a Geiger–Müller counter) is an electronic instrument used for detecting and measuring ionizing radiation. It is widely used in applications such as radiation dosimetry, radiological protection, experimental physics, nuclear industry and the Manumouthry. It detects ionizing radiation such as alpha particles, beta particles, and gamma rays using the ionization effect produced in a Geiger–Müller tube, which gives its name to the instrument. In wide and prominent use as a hand-held radiation survey instrument, it is perhaps one of the world's best-known radiation detection instruments. The original detection principle was realized in 1908 at the University of Manchester, but it was not until the development of the Geiger–Müller tube in 1928 that the Geiger counter could be produced as a practical instrument. Since then, it has been very popular due to its robust sensing element and relatively low cost. However, there are limitations in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert U-238 Atomic Energy Laboratory
The Gilbert U-238 Atomic Energy Lab was a toy lab set that was produced by Alfred Carlton Gilbert, who was an American athlete, magician, toy-maker, business man, and inventor of the well-known Erector Set. The Atomic Energy Lab was released by the A. C. Gilbert Company in 1950. The kit's intention was to allow children to create and watch nuclear and chemical reactions using radioactive material. Background and development Gilbert believed that toys were the foundation in building a "solid American character", and many of his toys had some type of educational significance to them. Gilbert was even dubbed "the man who saved Christmas" during World War I when he convinced the US Council of National Defense not to ban toy purchases during Christmas time.Watson, B (1999''Hello Boys! Become an erector master engineer.''''Smithsonian'', 30(2), 120 The Atomic Energy Lab was just one of a dozen chemical reactions lab kits on the market at the time. Gilbert’s toys often included inst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skilcraft
Skilcraft, often stylized as SKILCRAFT, is the registered trade name of the National Industries for the Blind (NIB). Products made by Skilcraft are created largely by visually impaired or severely disabled individuals. Products bearing the Skilcraft brand are commonly used in United States federal government institutions, including the United States Postal Service. They are also commonly sold in U.S. military base exchanges and commissaries. History In 1938, President Roosevelt signed the Wagner-O'Day Act which directed the government to purchase products manufactured by blind Americans. Robert Irwin, who was the executive director of the American Foundation for the Blind, and Peter Salmon who was the assistant director for the Industrial Home for the Blind promoted the bill in Washington, D.C. This act gave non-profit organizations for the blind the ability to sell to the federal government. It also provided the creation of a committee, known as the Committee on Purchases of Bl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
