Monthly Archives: May 2016

Julius Richard Petri and the Petri Dish

Julius Richard Petri and the Petri Dish

On May 31, 1852, German microbiologist Julius Richard Petri was born. Petri is generally credited with inventing the device known as the Petri dish after him, while working as assistant to bacteriologist Robert Koch. Julius Richard Petri – Background Information Julius Richard Petri studied medicine at the Kaiser Wilhelm Academy for Military Physicians from 1871-1875 and worked for a short time as a military doctor. He completed his doctorate as a physician at the Charité…
Read more
Edmund Hillary and Tenzing Norgay on Top of Mount Everest

Edmund Hillary and Tenzing Norgay on Top of Mount Everest

On May 29, 1953, Sir Edmund Hillary and Tenzing Norgay reached the summit of Mount Everest, the highest mountain on Earth, located in the Mahalangur mountain range in Nepal and Tibet, using the southeast ridge route. Tenzing had reached 8,595 m the previous year as a member of the 1952 Swiss expedition. Edmund Hillary – Early Years Edmund Hillary grew up near Auckland, New Zealand. During a high school trip to Mount…
Read more
The Flying Serpent of Henham

The Flying Serpent of Henham

On May 27 and 28, a mystical dragon creature was allegedly seen in the village of Henham in Uttlesford, Essex, ever since referred to as “The Flying Serpent of Henham“. The dragon was described as some sort of a a winged snake, that attacked several people and then hid in the nearby woods. The first sighting is probably published in ‘The Flying Serpent or Strange News Out of Essex‘ in 1669. The article…
Read more
Daniel Barringer and the Barringer Crater

Daniel Barringer and the Barringer Crater

On May 25, 1860, American geologist Daniel Moreau Barringer was born. Barringer is best known as the first person to prove the existence of an impact crater on the Earth, the Meteor Crater in Arizona. The site has been renamed the Barringer Crater in his honor, although this name is mainly used in the scientific community. Daniel Barringer – Family Background and Early Years Daniel Barringer was born in Raleigh, North Carolina, USA,…
Read more
Learning and Motivation according to Clark Leonard Hull

Learning and Motivation according to Clark Leonard Hull

On May 24, 1884, American psychiatrist Clark Leonard Hull was born. Hull sought to explain learning and motivation by scientific laws of behavior and is also known for his work in drive theory. He was able to establish his analysis of animal learning and conditioning as the dominant learning theory of its time. He is perhaps best known for the “goal gradient” effect or hypothesis, wherein organisms spend disproportionate amounts of effort in…
Read more
Edward Lorenz and the Butterfly Effect

Edward Lorenz and the Butterfly Effect

On May 23, 1917, American mathematician, meteorologist, and a pioneer of chaos theory Edward Norton Lorenz was born. He is best known for pointing out the “butterfly effect” whereby chaos theory predicts that “slightly differing initial states can evolve into considerably different states.” In his 1963 paper in the Journal of Atmospheric Sciences, he cited the flapping of a seagull‘s wings as changing the state of the atmosphere in even such a…
Read more
Thomas Gold and the Steady-State Theory

Thomas Gold and the Steady-State Theory

On May 22, 1920, Austrian-born American astrophysicist Thomas Gold was born. Gold was one of three young Cambridge scientists who in the 1950s proposed the now mostly abandoned ‘steady state‘ hypothesis of the universe. His work crossed academic and scientific boundaries, into biophysics, astronomy, aerospace engineering, and geophysics. Thomas Gold – Youth and Education Thomas Gold was born in Vienna, Austria to Max Gold, a wealthy Jewish industrialist (pre-war) who ran one of…
Read more
Andrei Sakharov and the Soviet Thermonuclear Bomb

Andrei Sakharov and the Soviet Thermonuclear Bomb

On May 21, 1921, Russian nuclear physicist, Soviet dissident, an activist for disarmament, peace and human rights Andrei Dmitrievich Sakharov was born.Sakharov became renowned as the designer of the Soviet Union‘s thermonuclear weapons. Sakharov later became an advocate of civil liberties and civil reforms in the Soviet Union, for which he faced state persecution; these efforts earned him the Nobel Peace Prize in 1975. “We regard as “scientific” a method based on…
Read more
Hideo Shima and the Bullet Train

Hideo Shima and the Bullet Train

On May 20, 1901, Japanese engineer Hideo Shima was born. Shima was the driving force behind the building of the first bullet train, the Shinkansen, linking Tokyo and Osaka in Oct 1964. Shima also led Japan‘s space development programme until 1977 at Japan’s National Space Development Agency. The Son of a Railway Engineer Hideo Shima was born in Osaka as the son of a prominent railway engineer and educated at the Tokyo…
Read more
Thomas Midgley Jr. and the Development of Leaded Fuel

Thomas Midgley Jr. and the Development of Leaded Fuel

On May 18, 1889, American mechanical engineer and chemist Thomas Midgley Jr. was born. Midgley was a key figure in a team of chemists, led by Charles F. Kettering, that developed the tetraethyllead (TEL) additive to gasoline as well as some of the first chlorofluorocarbons (CFCs). Over the course of his career, Midgley was granted over a hundred patents. Thomas Midgley and the Problem of Knocking Thomas Midgley Jr. was born in…
Read more
Relation Browser
Timeline
0 Recommended Articles:
0 Recommended Articles: