the machine is now at its most efficient
51My Inventions: The Autobiography of Nikola Tesla —   …
52Drop the Dead Donkey — Format Satirical sitcom Created by Andy Hamilton Guy Jenkin …
53Slavery in the United States — began soon after English colonists first settled Virginia in 1607 and lasted until the passage of the Thirteenth Amendment to the United States Constitution in 1865. Before the widespread establishment of chattel slavery, much labor was organized …
55Poland in the Early Middle Ages — According to the currently predominant opinion, the Slavic tribes were not indigenous to the lands that were to become Poland [This is the so called allochthonic theory; according to the autochthonic theory the opposite is true] , but their first …
56Captain Scarlet and the Mysterons — This article is about the 1967 TV series. For the 2005 series, see Gerry Anderson s New Captain Scarlet. Captain Scarlet and the Mysterons …
57Steam power during the Industrial Revolution — See also the section on steam power in the main Industrial Revolution article During the Industrial Revolution, steam power replaced water power and muscle power (which often came from horses) as the primary source of power in use in industry.… …
58List of scientists opposing the mainstream scientific assessment of global warming — This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries …
59History of the Internet — Main article: Internet The history of the Internet starts in the 1950s and 1960s with the development of computers. This began with point to point communication between mainframe computers and terminals, expanded to point to point connections… …
60Progressivism in the United States — Part of the Politics series on Progressivism Schools American Progressivism Modern liberalism Progressive education Ideas Anti racism Civil liberties …
