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Hace 16 horas · James Maitland Stewart (May 20, 1908 – July 2, 1997) was an American actor. Known for his distinctive drawl and everyman screen persona, Stewart's film career spanned 80 films from 1935 to 1991. With the strong morality, which he portrayed both on and off the screen, he epitomized the "American ideal" in the mid-twentieth century.In 1999, the American Film Institute (AFI) ranked him third on ...
Hace 16 horas · Manhattan District The Trinity test of the Manhattan Project on 16 July 1945 was the first detonation of a nuclear weapon. Active 1942–1946 Disbanded 15 August 1947 Country United States United Kingdom Canada Branch U.S. Army Corps of Engineers Garrison/HQ Oak Ridge, Tennessee, U.S. Anniversaries 13 August 1942 Engagements Allied invasion of Italy Allied invasion of France Allied invasion of ...
Hace 16 horas · A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range ().They are one of the allotropes of carbon.. Single-walled carbon nanotubes (SWCNTs) have diameters around 0.5–2.0 nanometres, about 100,000 times smaller than the width of a human hair.They can be idealised as cutouts from a two-dimensional graphene sheet rolled up to form a hollow cylinder.
