You are here: Home › Post Tagged with: "USA"

USA

literature
Mark Twain – Keen Observer and Sharp-tongued Critic

Mark Twain – Keen Observer and Sharp-tongued Critic

Tabea Tietz
On November 30, 1835, famous American author Samuel Longhorn Clemens, better known by his pen name Mark Twain, was born in the tiny village of Florida, Missouri. He is most noted for his humorous novels about the mischievous boys Tom Sawyer and Huckleberry Finn and their adventures on the mighty Mississippi River. “Persons attempting to find a motive in this narrative will be prosecuted; persons attempting to find a moral in it…
Read more
biology
Alfred Sturtevant and the Chromosomes

Alfred Sturtevant and the Chromosomes

Harald Sack
On November 21, 1891, American geneticist Alfred Henry Sturtevant was born. Sturtevant constructed the first genetic map of a chromosome in 1913. Throughout his career he worked on the organism Drosophila melanogaster with Thomas Hunt Morgan. By watching the development of flies in which the earliest cell division produced two different genomes, he measured the embryonic distance between organs in a unit which is called the sturt in his honor. Alfred Sturtevant…
Read more
aviation
Twice the Speed of Sound – The Record Flight of Scott Crossfield

Twice the Speed of Sound – The Record Flight of Scott Crossfield

Tabea Tietz
On November 20, 1953, Albert Scott Crossfield became the first person to fly at twice the speed of sound as he piloted the Douglass D-588-ii Skyrocket to a speed of 2,078 km/h, Mach 2.005. Albert Scott Crossfield – Youth and Education Albert Scott Crossfield was born on October 2, 1921 in California and grew up in California and Washington. During the Second World War he served in the US Navy as a flight…
Read more
aviation
The X-43A and the Scramjet Technology

The X-43A and the Scramjet Technology

Tabea Tietz
On November 16, 2004, the unmanned experimental hypersonic aircraft NASA X-43A set a new speed record of 10,617 km/h or Mach 9.65. With this flight the X-43A became the fastest free flying air-breathing aircraft in the world. The X-43A was propelled by a so-called scramjet, is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic airflow. NASA’s Hyper X Programme After DARPA, in collaboration with Rockwell, unsuccessfully completed…
Read more
medical science
Ephraim McDowell – the Father of Abdominal Surgery

Ephraim McDowell – the Father of Abdominal Surgery

Tabea Tietz
On Nov 11, 1771, American physician and pioneer surgeon Ephraim McDowell was born. The first person to successfully remove an ovarian tumor, he has been called “the father of ovariotomy” as well as founding father of abdominal surgery. Ephraim McDowell – Youth and Education Ephraim McDowell was born in Rockbridge County, Virginia, the ninth child of Samuel and Mary McDowell. His father was a veteran of the French and Indian War and a…
Read more
astronomy
Harlow Shapley and the Size of the Milky Way

Harlow Shapley and the Size of the Milky Way

Tabea Tietz
On November 2, 1885, American astronomer Harlow Shapley was born. Shapley is best know for having correctly estimated the size of the Milky Way Galaxy and the sun’s position within it. Harlow Shapley – Early Years Harlow Shapley was born in Nashville, Missouri and dropped out of school after fifth grade. However, later on he managed to return to school and complete a six-year high school program in only two years. At…
Read more
physics
Narinder Singh Kapany – The Father of Fiber Optics

Narinder Singh Kapany – The Father of Fiber Optics

Tabea Tietz
On October 31, 1926, Indian-born American physicist Narinder Singh Kapany was born. He coined the term fibre optics for the technology transmitting light through fine glass strands in devices from endoscopy to high-capacity telephone lines that has changed the medical, communications and business worlds. Narinder Singh Kapany – Biographical Background Narinder Singh was born in Punjab, India. In 1952, this earlier work led Kapany to conduct studies that led to the invention…
Read more
war/crime
The “King of Bombs” and the Craze of Cold War Nuclear Armament

The “King of Bombs” and the Craze of Cold War Nuclear Armament

Tabea Tietz
On October 30, 1961, the Soviet Union detonated the hydrogen bomb Tsar Bomba over Novaya Zemlya, which still is the largest explosive device ever detonated, nuclear or otherwise. Technical Challenges Just to get an idea of the bomb’s power, the Tsar Bomba measured ten times the power of all explosives used during World War II. Still, the bomb was known for the very little amount of fallout, produced during the explosion since about 97%…
Read more
physics
Felix Bloch and the Nuclear Magnetic Resonance Method

Felix Bloch and the Nuclear Magnetic Resonance Method

Tabea Tietz
On October 23, 1905, Swiss-born American physicist Felix Bloch was born. He is best known for his investigations into nuclear induction and nuclear magnetic resonance, which are the underlying principles of MRI. He was awarded the 1952 Nobel Prize in Physics for developing the nuclear magnetic resonance (NMR) method of measuring the magnetic field of atomic nuclei. “While I am certainly not asking you to close your eyes to the experiences of earlier generations,…
Read more
aviation
Reaching the Edge of Outer Space – the X-15 Rocket Space Plane

Reaching the Edge of Outer Space – the X-15 Rocket Space Plane

Tabea Tietz
On October 3, 1967, the X-15 rocket plane achieved a world record speed of Mach 6.7, which is 7,274 km/h (4,520 mph or over a mile per second) with U.S. Air Force pilot Pete Knight. As by today, this record still holds for the highest speed ever reached by a manned, powered aircraft. Among the notable pilots of the X-15 was also Neil Armstrong,[4] later a NASA astronaut and first man to set…
Read more
Relation Browser
Timeline
0 Recommended Articles:
0 Recommended Articles: