Mole Day is an unofficial holiday celebrated among chemists, chemistry students and chemistry enthusiasts on October 23, between 6:02 a.m. and 6:02 p.m. making the date 6:02 10/23 in the American style of writing dates. The time and date are derived from the Avogadro number, 6.02×1023, defining the number of particles in one mole of substance, one of the seven base SI units. Mole Day originated in an article in The Science Teacher in the early 1980s. Inspired by this article, Maurice Oehler, now a retired high school chemistry teacher from Prairie du Chien, founded the National Mole Day Foundation on May 15, 1991. Many high schools around the United States, South Africa and Canada celebrate Mole Day as a way to get their students interested in chemistry, with various activities related to chemistry or moles; the American Chemical Society sponsors National Chemistry Week, which occurs from the Sunday through Saturday during which October 23 falls. This makes Mole Day an integral part of National Chemistry Week.

Pi Day Square Root Day National Mole Day Foundation, Inc

David Amer is a former professional Canadian football tight end who played for the Calgary Stampeders of the Canadian Football League. He was selected in the third round of the 1982 CFL Draft by the Stampeders and went on to play five games professionally. Amer played college football for the Simon Fraser Clan. Amer played high school football at Northern Secondary School as a quarterback; as a senior in 1977, Amer led his team to the Toronto Secondary Schools Athletic Association finals. He was selected to play in the 1978 Metropolitan Toronto all-star game, where he was voted the offensive player of the game. Amer played rugby, winning the TSSAA championship game with the team in 1978. For his roles on both the Canadian football and rugby teams in the 1977–78 academic year, Amer was named Northern's male athlete of the year, he received an athletic scholarship to play college football at Simon Fraser University. Amer played a variety of positions with Simon Fraser, including quarterback, running back, slotback.

Prior to the 1981 CFL Draft, the Toronto Argonauts considered designating Amer as their territorial exemption pick. This didn't occur, Amer was drafted in the third round of the 1982 CFL Draft by the Calgary Stampeders with the 21st overall pick; the Stampeders released Amer prior to the season opener, but he returned and played in five regular season games in the 1982 season as a tight end. Amer caught two passes for 37 yards with the Stampeders

The Secretariat of Security and Civilian Protection is a cabinet-level agency of the government of Mexico responsible for supervising public safety and security, including the Federal Police, a new National Intelligence Center, the penitentiary system. Its secretary is Alfonso Durazo; the SSPC was created in 2018 by way of the omnibus reform package to the Organic Law of the Federal Public Administration for the presidency of Andrés Manuel López Obrador. It absorbed all of the security apparatus housed in the Secretariat of the Interior, including the National Security Commission; these functions had been in SEGOB since the Secretariat of Public Security was dissolved at the start of 2013. Among the tasks to be undertaken by the new SSPC are the formation of a new National Guard, which will absorb the 35,000 members of the military police and another 8,000 from the naval police

Maria Grazia Speranza is an Italian applied mathematician and operations researcher. Her research involves the application of mathematical optimization to problems including portfolio optimization and the combination of inventory management with vehicle routing, she is a professor of operations research in the faculty of economics and business of the University of Brescia, a former vice chancellor and dean at the University, the former president of the Association of European Operational Research Societies and the INFORMS Transportation Science and Logistics Society, the president of the International Federation of Operational Research Societies. Speranza earned a master's degree in applied mathematics in 1980 and an advanced degree in applied mathematics in 1983 at the University of Milan. After working as an assistant professor at the University of Milan from 1983 to 1987, as an associate professor at the University of Udine from 1987 to 1990, she moved to the University of Brescia, she obtained a full professorship there in 1994.

From 2000 to 2002, Speranza was the vice chancellor of the University of Brescia. Afterwards, until 2008, she was dean of the faculty of economics and business, she was president of the Association of European Operational Research Societies from 2011 to 2012, president of the INFORMS Transportation Science and Logistics Society for 2013. She is president of the International Federation of Operational Research Societies for 2019–2021. Speranza is the co-author, with Renata Mansini and Włodzimierz Ogryczak, of the book Linear and Mixed Integer Programming for Portfolio Optimization. Home page M. Grazia Speranza publications indexed by Google Scholar

Landshapes was a British band formed in 2012, known for its effects-heavy psychedelic alternative rock. They released their debut full-length album Rambutan on indie record label Bella Union in 2013 and their second album, Heyoon, in May 2015; the group consisted of Heloise Tunstall-Behrens and Luisa Gerstein with Jemma Freeman and Dan Blackett. They were known as Lulu and the Lampshades. Band members Tunstall-Behrens and Gerstein are known for their revival of the 1931 Carter Family song "When I'm Gone" as "Cups". Since the dissolution of Landshapes and Tunstall-Behrens remained active with Deep Throat Choir, releasing an album on Bella Union in 2017, now perform with Blood Moon Project. Freeman formed Jemma Freeman and the Cosmic Something, releasing a debut EP in 2017 and a debut album in 2019. 2009: "Feet To The Sky" / "Rose Tint" 2011: "Cold Water" / "Cups" 2011: "Cold Water" 2013: Rambutan 2013: "Insomniacs Club" 2015: Heyoon Allmusic bio Landshapes on Facebook

Heinrich Khunrath, or Dr. Henricus Khunrath as he was called, was a German physician, hermetic philosopher, alchemist. Frances Yates considered him to be a link between the philosophy of John Rosicrucianism. Khunrath was born in Dresden, the son of the merchant Sebastian Kunrat and his wife Anna in the year 1560, he was the younger brother of the Leipzig physician Conrad Khunrath. In the winter of 1570, he may have enrolled at the University of Leipzig under the name of Henricus Conrad Lips; the uncertainties surrounding his life stem from his supposed use of multiple names. It is certain that in May 1588, he matriculated at the University of Basel, earning his Medicinæ Doctor degree on 3 September 1588, after a defense of twenty-eight doctoral theses. Khunrath, a disciple of Paracelsus, practiced medicine in Dresden and Hamburg and may have held a professorial position in Leipzig, he travelled after 1588, including a stay at the Imperial court in Prague, home to the mystically inclined Habsburg emperor Rudolf II.

Before reaching Prague he had met John Dee at Bremen on 27 May 1589, when Dee was on his way back to England from Bohemia. Khunrath praised Dee in his works. During his court stay Khunrath met the alchemist Edward Kelley who had remained behind after he and Dee had parted company. In September 1591, Khunrath was appointed court physician to Count Rosemberk in Trebona, he met Johann Thölde while at Trebona, one of the suggested authors of the "Basilius Valentinus" treatises on alchemy. Khunrath's brushes with John Dee and Thölde and Paracelsian beliefs led him to develop a Christianized natural magic, seeking to find the secret prima materia that would lead man into eternal wisdom; the Christianized view that Khunrath took was framed around his commitment to Lutheran theology. He held that experience and observation were essential to practical alchemical research, as would a natural philosopher, his most famous work on alchemy is the Amphitheatrum Sapientiae Aeternae, a work on the mystical aspects of that art, which contains the oft-seen engraving entitled "The First Stage of the Great Work", better-known as the "Alchemist's Laboratory".

The book was first published at Hamburg in 1595, with four circular elaborate, hand-colored, engraved plates heightened with gold and silver which Khunrath designed and were engraved by Paullus van der Doort. The book was made more available in an expanded edition with the addition of other plates published posthumously in Hanau in 1609. Amphitheatrum Sapientiae Aeternae is an alchemical classic, combining both magic. In it, Khunrath showed himself to be an adept of spiritual alchemy and illustrated the many-staged and intricate path to spiritual perfection. Khunrath's work was important in Lutheran circles. John Warwick Montgomery has pointed out that Johann Arndt, the influential writer of Lutheran books of pietiesm and devotion, composed a commentary on Amphitheatrum; some of the ideas in his works are Kabbalistic in foreshadow Rosicrucianism. Khunrath may have encountered some opposition to his alchemical work because most of his publications on alchemy were published after his death, he died in either Dresden or Leipzig on 9 September 1605.

The tension between spirituality and experiment in Amphitheatrum Sapientiae Aeternae brought about its condemnation by the Sorbonne in 1625. De signatura rerum naturalium theses. Basel. 1588. Amphitheatrum sapientiae aeternae. Hamburg. 1595. Carlos Gilly. Amphitheatrum sapientiae aeternae – Schauplatz der ewig allein wahren Weisheit. Stuttgart - Bad Cannstatt: frommann-holzboog. P. 500. ISBN 978-3-7728-1628-4. Archived from the original on 16 October 2014. Retrieved 22 September 2014. - Reprint of the first and second edition, together with a transcription of a German translation. Confessio de chao physico-chemicorum catholico: in quo catholice habitat azoth sive materia prima mundi, h.e. mercurius sapientum: ubi magnesiae conditiones fideliter recensentur. 1595. Von hylealischen das ist, pri-materialischen catholischen, oder algemeinemx natürlichen … chaos der naturgemässen alchymiae und alchymisten, verneuerte und wolvermehrete naturgemäss-alchymisch- und recht-lehrende philosophische Confessio oder Bekandtniss … Deme beygefügt ist eine treuhertzige Wahrnungs-Vermahnung an alle wahre Alchymisten, sich vor den betrügerischen Arg-Chymisten zu hüten.

Magdeburg. 1597. Naturgemes-alchymisch symbolum, gahr kurtze Bekentnus …: von allgemeinem, natürlichen, wunderbaren, und wunderthätigen, allergeheimbsten Chao der naturgemessen Alchymisten: desz philosophischen universal und grossen Steins rechten natürlichen unnd eigenen Subjecto, waren und einiger Materia. Hamburg. 1598. Magnesia catholica philosophorum, das ist, höheste Nothwendigkeit in Alchymia, auch mügliche uberkommung augenscheinliche Weisung, vnd genugsame Erweisung catholischer verborgener Magnesiae. Magdeburg. 1599. Wahrhafter Bericht vom philosophischen Athanor und dessen Gebrauch und Nutzen …. Magdeburg. 1603. Quaestiones tres, per-utiles …: cum curationem, tum praecautionem absolutam … Arenae, Calculi, Gonagrae, aliorumque morborum tartareorum microcosmi … hominis puta, concernentes: das ist, hochnützliche … drei Fragen, die gründliche, vollkommene und warhafftige Curation oder Ge