Canal History - Suez Canal Authority 
https://www.suezcanal.gov.eg/sc.aspx?show=8
Egypt was the first country to dig a man-made canal across its lands to connect the Mediterranean Sea to the Red Sea via the branches of the River Nile.
Suez Canal - Wikipedia
https://en.wikipedia.org/wiki/Suez_Canal
Suez Canal opens - Nov 17, 1869 - HISTORY.com
www.history.com/this-day-in-history/suez-canal-opens
The Suez Canal, connecting the Mediterranean and the Red seas, is inaugurated in an elaborate ceremony attended by French Empress Eugénie, wife of Napoleon III.
In 1854, Ferdinand de Lesseps, the former French consul to Cairo, secured an agreement with the Ottoman governor of Egypt to build a canal 100 miles across the Isthmus of Suez. An international team of engineers drew up a construction plan, and in 1856 the Suez Canal Company was formed and granted the right to operate the canal for 99 years after completion of the work.
Construction began in April 1859, and at first digging was done by hand with picks and shovels wielded by forced laborers. Later, European workers with dredgers and steam shovels arrived. Labor disputes and a cholera epidemic slowed construction, and the Suez Canal was not completed until 1869–four years behind schedule. On November 17, 1869, the Suez Canal was opened to navigation. Ferdinand de Lesseps would later attempt, unsuccessfully, to build a canal across the Isthmus of Panama.
In 1854, Ferdinand de Lesseps, the former French consul to Cairo, secured an agreement with the Ottoman governor of Egypt to build a canal 100 miles across the Isthmus of Suez. An international team of engineers drew up a construction plan, and in 1856 the Suez Canal Company was formed and granted the right to operate the canal for 99 years after completion of the work.
Construction began in April 1859, and at first digging was done by hand with picks and shovels wielded by forced laborers. Later, European workers with dredgers and steam shovels arrived. Labor disputes and a cholera epidemic slowed construction, and the Suez Canal was not completed until 1869–four years behind schedule. On November 17, 1869, the Suez Canal was opened to navigation. Ferdinand de Lesseps would later attempt, unsuccessfully, to build a canal across the Isthmus of Panama.
Suez Canal opens -
Seven Bridges of Königsberg - Wikipedia
https://en.wikipedia.org/wiki/Seven_Bridges_of_Königsberg
The Seven Bridges of Königsberg is a historically notable problem in mathematics. Its negative resolution by Leonhard Euler in 1736 laid the foundations of ...
Activity: The Seven Bridges of Königsberg - Math is Fun
https://www.mathsisfun.com/activity/seven-bridges-konigsberg.html
The Seven Bridges of Konigsberg. Can you take a walk through the town, visiting each part of the town and crossing each bridge only once? This question was ...
Leonard Euler's Solution to the Konigsberg Bridge Problem ...
www.maa.org/press/.../leonard-eulers-solution-to-the-konigsberg-bridge-problem
The healthy economy allowed the people of the city to build seven bridges .... Because of this, the whole of the Königsberg Bridge problem required seven ...
Leonard Euler's Solution to the Konigsberg Bridge Problem ...
www.maa.org/press/.../leonard-eulers-solution-to-the-konigsberg-bridge-problem
Leonard Euler's Solution
Leon ..........ler ....
Fermilab History and Archives Project | Leon M. Lederman
https://history.fnal.gov/lederman.htmlLeon M. Lederman The Leon M. Lederman Collection contains the multi-media records of the history (1922 - present) and administration (1978-89) of the ...Lederman
........dermatology / skin manuscript ......
B.F. Skinner | Operant Conditioning | Simply Psychology
www.simplypsychology.org/operant-conditioning.html
by I Pavlov - Related articles
B.F. Skinner (1938) coined the term operant conditioning; it means roughly changing of behavior by the use of reinforcement which is given after the desired response. Skinner identified three types of responses or operant that can follow behavior. ... Punishment weakens behavior.
www.simplypsychology.org/operant-conditioning.html
B.F. Skinner | Operant Conditioning
Batavia FermiLAB Skin / dermatology EARTH LAB specimens below
The Two Cultures - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/The_Two_Cultures
Wikipedia
Snow's position can be summed up by an often-repeated part of the essay:
A good many times I have been present at gatherings of people who, by the standards of the traditional culture, are thought highly educated and who have with considerable gusto been expressing their incredulity at the illiteracy of scientists. Once or twice I have been provoked and have asked the company how many of them could describe the Second Law of Thermodynamics. The response was cold: it was also negative. Yet I was asking something which is the scientific equivalent of: Have you read a work of Shakespeare’s?[5]
I now believe that if I had asked an even simpler question — such as, What do you mean by mass, or acceleration, which is the scientific equivalent of saying, Can you read? — not more than one in ten of the highly educated would have felt that I was speaking the same language. So the great edifice of modern physics goes up, and the majority of the cleverest people in the western world have about as much insight into it as their neolithic ancestors would have had.[5]
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