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Jakob Kunz
Jakob Kunz (November 3, 1874 – July 18, 1938) was an American physicist who pioneered the development and application of photoelectric cells. Born in Brittnau, Switzerland, he earned his bachelor's degree in 1897 and his Ph.D in 1902 from the Eidgenossisches Polytechnikum in Zurich, and was active in the Baháʼí Faith from 1921. Physics department Kunz arrived at the University of Illinois in 1909 as a theoretical physicist. He taught most of the graduate courses and supervised half of the Ph. Ds up to 1929. Larazus notes that “He was clearly the intellectual leader of the department.” One of his students was E. Frances Seiler who became the first woman to earn a Ph.D in physics at Illinois for her thesis on the color-sensitivity of photoelectric cells. Kunz also wrote papers on and gave public lectures on relativity. Photoelectric cells and astronomical photometry Kunz made significant contributions to construction of photoelectric cells improving on the methods intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physicist
A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate causes of phenomena, and usually frame their understanding in mathematical terms. Physicists work across a wide range of research fields, spanning all length scales: from sub-atomic and particle physics, through biological physics, to cosmological length scales encompassing the universe as a whole. The field generally includes two types of physicists: experimental physicists who specialize in the observation of natural phenomena and the development and analysis of experiments, and theoretical physicists who specialize in mathematical modeling of physical systems to rationalize, explain and predict natural phenomena. Physicists can apply their knowledge towards solving practical problems or to developing new technologies (also known as applie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Tykociński-Tykociner
Joseph Tykociński-Tykociner (also known as Joseph T. Tykociner; 5 October 1877, in Włocławek, Congress Poland – 11 June 1969, in Urbana, Illinois, United States) was a Polish engineer and a pioneer of sound-on-film technology. In 1921 he became the first research professor of engineering at the University of Illinois at Urbana-Champaign. Within a year of his arrival at the University, he conducted the first sound-on-film motion picture recordings at a physics demonstration that showed how pictures and sound could be synchronized to produce a "talkie", a motion picture with sound. Life Tykociner was born into a Jewish family in Włocławek, a town in Polish territory then under Russian control. Moone, Tom, "Joseph Tykociner: Pioneer of sound on film" Ingenuity. University of Illinois Electrical and Computer Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1938 Deaths
Events January * January 1 ** The new constitution of Estonia enters into force, which many consider to be the ending of the Era of Silence and the authoritarian regime. ** State-owned railway networks are created by merger, in France ( SNCF) and the Netherlands (Nederlandse Spoorwegen – NS). * January 20 – King Farouk of Egypt marries Safinaz Zulficar, who becomes Queen Farida, in Cairo. * January 27 – The Honeymoon Bridge at Niagara Falls, New York, collapses as a result of an ice jam. February * February 4 ** Adolf Hitler abolishes the War Ministry and creates the Oberkommando der Wehrmacht (High Command of the Armed Forces), giving him direct control of the German military. In addition, he dismisses political and military leaders considered unsympathetic to his philosophy or policies. General Werner von Fritsch is forced to resign as Commander of Chief of the German Army following accusations of homosexuality, and replaced by General Walther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1874 Births
Events January–March * January 1 – New York City annexes The Bronx. * January 2 – Ignacio María González becomes head of state of the Dominican Republic for the first time. * January 3 – Third Carlist War – Battle of Caspe: Campaigning on the Ebro in Aragon for the Spanish Republican Government, Colonel Eulogio Despujol surprises a Carlist force under Manuel Marco de Bello at Caspe, northeast of Alcañiz. In a brilliant action the Carlists are routed, losing 200 prisoners and 80 horses, while Despujol is promoted to Brigadier and becomes Conde de Caspe. * January 20 – The Pangkor Treaty (also known as the Pangkor Engagement), by which the British extended their control over first the Sultanate of Perak, and later the other independent Malay States, is signed. * January 23 **Alfred, Duke of Saxe-Coburg and Gotha, Prince Alfred, Duke of Edinburgh, second son of Queen Victoria, marries Grand Duchess Maria Alexandrovna of Russia, only daug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pioneering (Baháʼí)
Pioneer commonly refers to a settler who migrates to previously uninhabited or sparsely inhabited land. In the United States pioneer commonly refers to an American pioneer, a person in American history who migrated west to join in settling and developing new areas. Pioneer, The Pioneer, or pioneering may also refer to: Companies and organizations * Pioneer Aerospace Corporation *Pioneer Chicken, an American fast-food restaurant chain *Pioneer Club Las Vegas, a casino in Las Vegas, Nevada, U.S. *Pioneer Corporation, a Japanese electronics manufacturer *Pioneer Energy, a Canadian gas station chain *Pioneer Entertainment, a Japanese anime company *Pioneer Hi-Bred, a U.S.-based agriculture company *Pioneer Hotel & Gambling Hall, Laughlin, Nevada, U.S. *Pioneer Instrument Company, an American aeronautical instrument manufacturer *Pioneer movement, a communist youth organization *Pioneer Natural Resources, an energy company in Texas, U.S. *Pioneer Pictures, a former American film stud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louhelen Baháʼí School
Louhelen Baháʼí School is one of three leading institutions owned by the National Spiritual Assembly of the Baháʼís of the United States. The others are Green Acre Baháʼí School and Bosch Baháʼí School. Louhelen is near Davison, Michigan. The school property was bought for Baháʼí purposes in 1930 by the new married couple Lou and Helen Eggleston and they hosted a picnic that year. The first school session was held in 1931 and was run via a committee organized by the national community through the 1930s and 40s. Innovations in the period were adding distinct sessions for youth and junior youth and practicum laboratory sessions. All the while the material setting was also advanced. In 1947 the Egglestons donated the school property valued over $50k and the National Spiritual Assembly of the US bought the residence which was organically part of the school. The work of maintaining the site was then kept by two committees and on-site managers though the Egglestons cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baháʼí Pilgrimage
A Baháʼí pilgrimage currently consists of visiting the holy places in Haifa, Acre, and Bahjí at the Baháʼí World Centre in Northwest Israel. Baháʼís do not have access to other places designated as sites for pilgrimage. Baháʼu'lláh decreed pilgrimage in the Kitáb-i-Aqdas to two places: the House of Baháʼu'lláh in Baghdad, and the House of the Báb in Shiraz. In two separate tablets, known as ''Suriy-i-Hajj'', he prescribed specific rites for each of these pilgrimages. It is obligatory to make the pilgrimage, "if one can afford it and is able to do so, and if no obstacle stands in one's way". Baháʼu'lláh has "exempted women as a mercy on His part", though the Universal House of Justice has clarified that women are free to perform this pilgrimage. Baháʼís are free to choose between the two houses, as either has been deemed sufficient. Later, ʻAbdu'l-Bahá designated the Shrine of Baháʼu'lláh at Bahjí (the Qiblih) as a site of pilgrimage. No rit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ʻAbdu'l-Bahá
ʻAbdu'l-Bahá (; Persian language, Persian: , 23 May 1844 – 28 November 1921), born ʻAbbás ( fa, عباس), was the eldest son of Baháʼu'lláh and served as head of the Baháʼí Faith from 1892 until 1921. ʻAbdu'l-Bahá was later Canonization, canonized as the last of three "central figures" of the religion, along with Baháʼu'lláh and the Báb, and his writings and authenticated talks are regarded as a source of Baháʼí sacred literature. He was born in Tehran to an Aristocracy, aristocratic family. At the age of eight his father was imprisoned during a government crackdown on the Bábism, Bábí Faith and the family's possessions were looted, leaving them in virtual poverty. His father was exiled from their native Iran, and the family went to live in Baghdad, where they stayed for nine years. They were later called by the Ottoman Empire, Ottoman state to Istanbul before going into another period of confinement in Edirne and finally the prison-city of Acre, Pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Eclipse Of June 8, 1918
A total solar eclipse occurred on Saturday, June 8, 1918. The eclipse was viewable across the entire contiguous United States, an event which would not occur again until the solar eclipse of August, 2017. The path The path of totality started south of Japan, went across the Pacific Ocean, passing northern part of Kitadaitō, Okinawa and the whole Tori-shima in Izu Islands on June 9 (Sunday), and then acrossed the contiguous United States and British Bahamas (today's Bahamas) on June 8 (Saturday). The largest city to see totality was Denver, although many could theoretically see it as the size of the shadow was between across as it traveled across America. The longest duration of totality was in the Pacific at a point south of Alaska. The path of the eclipse finished near Bermuda. Besides the path where a total solar eclipse was visible, a partial solar eclipse was visible in the eastern part of East Asia, northern part of Northern Europe, eastern part of Micronesia, Hawaii I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photoelectric
The photoelectric effect is the emission of electrons when electromagnetic radiation, such as light, hits a material. Electrons emitted in this manner are called photoelectrons. The phenomenon is studied in condensed matter physics, and solid state and quantum chemistry to draw inferences about the properties of atoms, molecules and solids. The effect has found use in electronic devices specialized for light detection and precisely timed electron emission. The experimental results disagree with classical electromagnetism, which predicts that continuous light waves transfer energy to electrons, which would then be emitted when they accumulate enough energy. An alteration in the intensity of light would theoretically change the kinetic energy of the emitted electrons, with sufficiently dim light resulting in a delayed emission. The experimental results instead show that electrons are dislodged only when the light exceeds a certain frequency—regardless of the light's intensity or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
