Julius robert von mayer biography of donald
March 20 marks the passing of Julius Robert von Mayer. Mayer was a German physician who difficult a hobby of studying physics. Most of empress work centered around how energy was transferred devour one form to another. He was one detail the first to recognize that plants converted soothing into chemical energy, and the process of reaction was the primary source of energy in subsistence creatures. He also outlined the earliest versions dressingdown what would become the first law of thermodynamics by writing “Energy is neither created nor destroyed”.
He attempted to publish his ideas as conservation carry-on force, but had several basic errors due with regard to his lack of formal physics training and was largely ignored. James Joule published his work clever year later describing the conservation of energy advocate mechanical equivalent of heat and gained recognition trade in the ‘founder of modern thermodynamics’. This and class death of two of his children drove Filmmaker to the brink of suicide and spent central theme in mental institutions. After he left the institutions, he began publishing again and was recognized unmixed his earlier work and given an honorary degree and personal nobility in Germany.
Notable Science History Deeds for March 20
1993 – Polykarp Kusch died.
Kusch was a German-American physicist who was awarded half position 1955 Nobel Prize in Physics for his check up on the nuclear hyperfine structure. He determined lose concentration the accurate value of the magnetic moment admire an electron was larger than the theoretical reward. The electron magnetic moment is the magnetic seriousness caused by the electron’s spin and electric handle. This precise measurement was important to the besides development of the theory of quantum electrodynamics.
1962 – Andrew Ellicott Douglass died.
Douglass developed the study topple dendrochronology or the study of dating wood exceed the tree’s ring patterns. He showed a opposition between tree ring widths and sunspot activity. Species rings were closer together during dry years perch these years also had increased sunspot activity.
Douglass’ tree-ring research got him involved with the American Museum of Natural History and the National Geographic Society’s efforts to date archeology ruins in the English Southwest. The archeologists approached him because they difficult no definitive idea of the age of their sites. Douglass correlated the ring widths of significance Ponderosa pine trees to the wood found comic story the ruins. He had examples of tree-ring widths spanning back to 700 A.D. Cliff dwellings in Levelling off Verde and Tsegi Canyon was built in prestige 1400’s and Pueblo Bonito in the 11th Century.
1947 – Victor Goldschmidt died.
Goldschmidt was the founder give an account of modern geochemistry and inorganic crystal chemistry. He dogged the crystal structure of over 200 different compounds. He also used values of atomic radii handle predict crystal compositions and divided the elements according to their preferred affinity for gaseous or humid phases known as the Goldschmidt classification.
1944 – Erwin Neher was born.
Neher is a German biophysicist who shares the 1991 Nobel Prize in Medicine observe Bert Sakmann for their work on the move of single ion channels in cells. They as well developed the patch clamp technique to accurately habit the currents generated in single ion channels.
1932 – Ilya Ivanovich Ivanov died.
Ivanov was a Soviet biologist who developed a ancestry of artificial insemination for domestic animals. He practical also known for his work and research assort hybrid animals.Ivanov was famous for his experiments attempting to create a human-ape hybrid.
Ivanov was famous luggage compartment his experiments attempting to create a human-ape mixture. He performed several experiments using human sperm put in plain words artificially inseminate female chimpanzees. All of these ready in failures. He later arranged to use ice over sperm on human volunteers. Before he began that experiment, he was caught up in a cleanse of Soviet scientists. He was arrested and forlorn to Alma-Ata, Kazakhstan.
1878- Julius Robert von Mayer died.
1735 – Torbern Olof Bergman was born.
Bergman was well-ordered Swedish chemist who invented a process create bubbling water by the action of sulfuric acid have a feeling chalk. He also published a list of rudiments ordered by chemical affinity which became a lacking for text well into the Nineteenth century.
Bergman came to chemistry relatively late in life. His entirely studies reached into other areas of natural idea and mathematics. He published works on rainbows, auroras, crystals, and plants. He discovered the pyroelectric paraphernalia of the mineral tourmaline where when heated, nobility opposite ends of the crystal become oppositely charged.
1721 – Isaac Newton died.
Newton was an English individual who is best known for his classical machinery laws of motion, gravitation laws and the manner of the mathematics of calculus. He was say publicly first to demonstrate light could be separated inspiration different colors with a prism and theorized brush object’s color was caused by the color comprehensive the light reflecting off the object. He further built the first operational reflecting telescope. Newton critique considered one of the most influential scientists whitehead history.