Recrystallizing a raw product using an infra lamp as a heat source.
It looks great and it also works well. Instead of a heat gun or an oil bath, we often use infra lamps as heat source during the recrystallization of various products. It is a safe and easy method for heating a flask.
1. Marie Curie (Maria Salomea Skłodowska Curie, 7 November 1867 – 4 July 1934), was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity - a term she coined. She discovered the elements polonium and radium, using techniques she invented for isolating radioactive isotopes. During World War I she developed mobile radiography units to provide X-ray services to field hospitals. She was the first woman to win a Nobel Prize and the only person to win the Nobel Prize in two scientific fields. She was the first woman to become a professor at the University of Paris in 1906.
2. Ada Lovelace (Augusta Ada King, Countess of Lovelace, 10 December 1815 – 27 November 1852) was an English mathematician and writer, chiefly known for her work on Charles Babbage’s proposed mechanical general-purpose computer, the Analytical Engine. She was the first to recognise that the machine had applications beyond pure calculation, and to have published the first algorithm intended to be carried out by such a machine. As a result, she is often regarded as one of the first computer programmers.
3. Rosalind Franklin (Rosalind Elsie Franklin, 25 July 1920 – 16 April 1958) was an English chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite. Franklin is best known for her work on the X-ray diffraction images of DNA while at King’s College London, particularly Photo 51, which led to the discovery of the DNA double helix for which Francis Crick, James Watson, and Maurice Wilkins shared the Nobel Prize in Physiology or Medicine in 1962.
4. Grace Hopper (Grace Brewster Murray Hopper, December 9, 1906 – January 1, 1992) was an American computer scientist and United States Navy rear admiral. One of the first programmers of the Harvard Mark I computer, she was a pioneer of computer programming who invented one of the first linkers. Hopper was the first to devise the theory of machine-independent programming languages, and the FLOW-MATIC programming language she created using this theory was later extended to create COBOL, an early high-level programming language still in use today.
5. Hypatia of Alexandria (350–370 - 415 AD) was a Hellenistic Neoplatonist philosopher, astronomer, and mathematician, who lived in Alexandria, Egypt, then part of the Eastern Roman Empire. She was a prominent thinker of the Neoplatonic school in Alexandria where she taught philosophy and astronomy. She is known to have written a commentary on Diophantus’s thirteen-volume Arithmetica, which may survive in part, having been interpolated into Diophantus’s original text, and another commentary on Apollonius of Perga’s treatise on conic sections, which has not survived. Many modern scholars also believe that Hypatia may have edited the surviving text of Ptolemy’s Almagest, based on the title of her father Theon’s commentary on Book III of the Almagest. Hypatia is known to have constructed astrolabes and hydrometers.
6. Lise Meitner ( 7 November 1878 – 27 October 1968) was an Austrian-Swedish physicist who contributed to the discoveries of the element protactinium and nuclear fission. While working at the Kaiser Wilhelm Institute on radioactivity, she discovered the radioactive isotope protactinium-231 in 1917. In 1938, Meitner and nephew-physicist Otto Robert Frisch discovered nuclear fission. They found that bombarding thorium with neutrons produced different isotopes. Hahn and Strassmann later in the year showed that isotopes of barium could be formed by bombardment of uranium. In late December, Meitner and Frisch worked out the phenomenon of such a splitting process. In their report in February issue of Nature in 1939, they gave it the name “fission”. This principle led to the development of the first atomic bomb during World War II, and the subsequently other nuclear weapons and nuclear reactors. However, she did not share the 1944 Nobel Prize in Chemistry for nuclear fission, which was awarded exclusively to her long-time collaborator Otto Hahn. She was praised by Albert Einstein as the “German Marie Curie”.
7. Katherine Johnson (Creola Katherine Johnson, August 26, 1918 – February 24, 2020) was an American mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights. Johnson’s work included calculating trajectories, launch windows, and emergency return paths for Project Mercury spaceflights, including those for astronauts Alan Shepard, the first American in space, and John Glenn, the first American in orbit, and rendezvous paths for the Apollo Lunar Module and command module on flights to the Moon. Her calculations were also essential to the beginning of the Space Shuttle program, and she worked on plans for a mission to Mars. In 2015, President Barack Obama awarded Johnson the Presidential Medal of Freedom.
8. Nettie Stevens (Nettie Maria Stevens, July 7, 1861 – May 4, 1912) was an American geneticist who discovered sex chromosomes. In 1905, soon after the rediscovery of Mendel’s paper on genetics in 1900, she observed that male mealworms produced two kinds of sperm, one with a large chromosome and one with a small chromosome. When the sperm with the large chromosome fertilized eggs, they produced female offspring, and when the sperm with the small chromosome fertilized eggs, they produced male offspring. The pair of sex chromosomes that she studied later became known as the X and Y chromosomes.
9. Margaret Hamilton (Margaret Heafield Hamilton, born August 17, 1936) is an American computer scientist, systems engineer, and business owner. She was director of the Software Engineering Division of the MIT Instrumentation Laboratory, which developed on-board flight software for NASA’s Apollo program. She later founded two software companies—Higher Order Software in 1976 and Hamilton Technologies in 1986, both in Cambridge, Massachusetts. Hamilton has published more than 130 papers, proceedings and reports about sixty projects and six major programs. She is one of the people credited with coining the term “software engineering”. On November 22, 2016, Hamilton received the Presidential Medal of Freedom from president Barack Obama for her work leading to the development of on-board flight software for NASA’s Apollo Moon missions.
10. Jocelyn Bell Burnell (Dame Susan Jocelyn Bell Burnell, 15 July 1943) is an astrophysicist from Northern Ireland who, as a postgraduate student, discovered the first radio pulsars in 1967. The discovery was recognised by the award of the 1974 Nobel Prize in Physics but, despite being the first person to discover the pulsars, she was not one of the recipients of the prize. The paper announcing the discovery of pulsars had five authors. Bell’s thesis supervisor Antony Hewish was listed first, Bell second. Hewish was awarded the Nobel Prize, along with the astronomer Martin Ryle. Bell Burnell served as president of the Royal Astronomical Society from 2002 to 2004, as president of the Institute of Physics from October 2008 until October 2010, and as interim president of the Institute following the death of her successor, Marshall Stoneham, in early 2011.
💚 ¡Destiel es canon y correspondido en la versión Latinoamericana! 💙
Dibujo feo y rápido, pero es lo que hay.
Pd: México no es toda Latinoamérica, obviamente, el chiste de “viva México” es porque el doblaje es hecho aquí y ps la Rosa de Guadalupe también. Jajaja 🥺
