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The Triumph and Tragedy of a Genius: Robert O... 
Oppenheimer NHD Documentary

The Manhattan Project was the project to develop the first nuclear weapon (atomic bomb) during World War II by the United States, the United Kingdom, and Canada. Formally designated as the Manhattan Engineer District (MED), it refers specifically to the period of the project from 1941–1946 under the control of the U.S. Army Corps of Engineers, under the administration of General Leslie R. Groves. The scientific research was directed by American physicist J. Robert Oppenheimer.

The project succeeded in developing and detonating three nuclear weapons in 1945: a test detonation of a plutonium implosion bomb on July 16 (the Trinity test) near Alamogordo, New Mexico; an enriched uranium bomb code-named "Little Boy" on August 6 over Hiroshima, Japan; and a second plutonium bomb, code-named "Fat Man" on August 9 over Nagasaki, Japan.

The project's roots lay in scientists' fears since the 1930s that Nazi Germany was also investigating nuclear weapons of its own. Born out of a small research program in 1939, the Manhattan Project eventually employed more than 130,000 people and cost nearly $2 billion USD ($23 billion in 2007 dollars based on CPI). It re...
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Added By - 123456
Subject - Physics
Document Type - Profile
Video Duration - 00:00:02


Becoming a Pilot 
An aviator is a person who flies aircraft for pleasure or as a profession. The word is normally applied to pilots, but it can be applied more broadly, for example to include people such as wing-walkers who regularly take part in an aerobatic display sequence. The word aviatrix is sometimes used of women flyers, reflecting the word's Latin root.

The term was more used in the early days of aviation and has connotations of bravery and adventure. Anyone can fly an aircraft, with or without a certificate. However, at all times the aircraft must be under the operational control of a properly certified and current pilot, who is responsible for the safe and legal completion of the flight. The first certificate was delivered by the Aero Club de France to Louis Blériot in 1908, followed by Glenn Curtiss, Leon Delagrange and Robert Esnault-Pelterie. The absolute authority given to the Pilot in Command is derived from that of a ship’s captain.[citation needed]

In the United Kingdom there were (in 2000) 31,885 private pilots and 16,449 airline and commercial pilots (ATPL and CPL) registered with the UK Civil Aviation Authority (CAA). Among private pilots, only 6% are female (approximately 1800). In the commercial ...
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Added By - prashant bharadwaj
Subject - Aeronautics and Astronautics
Document Type - Seminars and Presentations
Video Duration - 00:03:07


Tragedy of the American Civil War 

Photos taken from various sources set to "Ashokan Farewell" showing the tragedy that was the American Civil War .

The American Civil War (1861–1865) was a civil war between the United States (the "Union") and the Southern slave states of the newly-formed Confederate States of America under Jefferson Davis. The Union included all of the free states and the five slaveholding border states and was led by Abraham Lincoln and the Republican Party, which opposed the expansion of slavery into territories owned by the United States. Republican victory in the presidential election of 1860 led seven Southern states to declare their secession from the Union even before Lincoln took office. The Union rejected secession, regarding it as rebellion.

Hostilities began on April 12, 1861, when Confederate forces attacked a U.S. military installation at Fort Sumter in South Carolina. Lincoln responded by calling for a large volunteer army, then four more Southern states declared their secession. In the war's first year, the Union assumed control of the border states and established a naval blockade ...

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Added By - 123456
Subject - History
Document Type - Documentary
Video Duration - 00:00:02


Phoenix Launch 

Phoenix Heads for Mars, Spacecraft Healthy The Phoenix spacecraft has separated from the Delta II rocket and ground controllers at NASA's Deep Space Network .

Phoenix was a robotic spacecraft on a space exploration mission on Mars under the Mars Scout Program. The Phoenix lander descended on Mars on May 25, 2008. Mission scientists used instruments aboard the lander to search for environments suitable for microbial life on Mars, and to research the history of water there.

The multi-agency program was headed by the

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Added By - appliedmath
Subject - Aeronautics and Astronautics
Document Type - Demonstration
Video Duration - 00:10:00


Harvard Biovisions - The Inner Life of a Cell 
Fantastic animation of the inside of a cell from Harvard Biovisions.Harvard University (incorporated as The President and Fellows of Harvard College) is a private university in Cambridge, Massachusetts, USA and a member of the Ivy League. Founded in 1636 by the Massachusetts Legislature,[2] Harvard is the oldest institution of higher learning in the United States, as well as the first and oldest corporation in the Americas.[4]

Initially referred to simply as "the new college", the institution was named Harvard College on March 13, 1639, after its first principal donor, a young clergyman named John Harvard. A graduate of Emmanuel College, Cambridge in England, John Harvard bequeathed about four hundred books in his will to form the basis of the college library collection, along with half his personal wealth worth several hundred pounds. The earliest known official reference to Harvard as a "university" rather than a "college" occurred in the new Massachusetts Constitution of 1780.

In his 1869-1909 tenure as Harvard president, Charles William Eliot radically transformed Harvard into the pattern of the modern research university. Eliot's reforms included elective courses, small classes, and entrance exam...
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Added By - 123
Subject - Biology
Document Type - Documentary
Video Duration - 00:00:02


Yale Campus Tour 
Yale University is a private university in New Haven, Connecticut. Founded in 1701 as the Collegiate School, Yale is the third-oldest institution of higher education in the United States and is a member of the Ivy League. Particularly well-known are its undergraduate school, Yale College, and the Yale Law School, each of which has produced a number of U.S. presidents and foreign heads of state. In 1861, the Graduate School of Arts and Sciences became the first U.S. school to award the Ph.D. degree. Also notable is the Yale School of Drama which has produced many prominent Hollywood and Broadway actors, as well as the art, forestry and environment, music, medical, management and architecture schools, each of which is often cited as among the finest in its field.
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Added By - 123
Subject - Campus Tour
Document Type - Demonstration
Video Duration - 00:00:02


Nanotechnology Takes Off - KQED QUEST 

From Lawrence Berkeley National Labs to Silicon Valley, researchers are manipulating particles at the atomic level, ushering in potential cures for cancer, clothes that don't stain, and solar panels as thick as a sheet of paper. http://www.kqed.org/quest

About KQED :

KQED is a public broadcasting company based in San Francisco, California. On May 1, 2006, KQED, Inc. and the KTEH Foundation merged to form Northern California Public Broadcasting.[1] The KQED assets including its

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Added By - 123456
Subject - Nanoscience and Nanotechnology
Document Type - Documentary
Video Duration - 00:10:28


Intelligent Design? Blood Vessels Help Tumors... 

Angiogenesis is a physiological process involving the growth of new blood vessels from pre-existing vessels. Though there has been some debate over this, vasculogenesis is the term used for spontaneous blood-vessel formation, and intussusception is the term for new blood vessel formation by splitting off existing ones.Angiogenesis is a normal process in growth and development, as well as in wound healing. However, this is also a fundamental step in the transition of tumors from a dormant state to a malignant state.

Intelligent Design? A scientist begins by asking a question that can be answered by gathering evidence. Questions arise in all sorts of ways: for example, from observations,...

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Added By - quantum
Subject - Medical Sciences
Document Type - Demonstration
Video Duration - 00:05:07


Smoke flow visualization over a wing 

In this field of aeronautical science, the flow visualization has been a nebulous observation
simply because air is invisible. The use of saw dust, tufts, fluorescent dye in oil with black light, a
recently developed laser beam and smoke, are some of th methods and materials used to attempt
flow visualization.
The use of saw dust increases the difficulty of maintenance in the wind tunnel and its
associated equipment. The tuft and oil methods show flow on the surface of the model. the laser
beam has not yet been perfected as a usable tool for this purpose. Whatever the method used, the
substance introduced into the tunnel should be non-corrosive, non-toxic, and the equipment must
be safe to handle.
The use of smoke appears to combine all the best characteristics of available methods. In
the early days, rotten wood was the popular source of smoke, (Ref. 1 and 2). However, smoke
produced by the burning wood was an eye irritant and caused an accumulation of tars.
The technique of evaporating oil by various methods was introduced to eliminate some of
the problems of the smoke, (Ref. 2). The study of smoke generators has also been reported in
England and Australia,...

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Added By - justin
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:20


Lockheed Morphing UAV 

High performance jet fighters have used a variety of morphing mechanisms in the past such as variable-sweep wings and fowler flaps to expand the flight envelope. Lockheed Martin (NYSELMT) is a leading multinational aerospace manufacturer and advanced technology company formed in 1995 by the merger of Lockheed Corporation with Martin Marietta. It is headq...

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Added By - justin
Subject - Aeronautics and Astronautics
Document Type - Documentary
Video Duration - 00:03:24

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