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Cutaway of an Anschütz gyrocompass. A gyrocompass repeater. A gyrocompass is a type of non-magnetic compass which is based on a fast-spinning disc and the rotation of the Earth (or another planetary body if used elsewhere in the universe) to find geographical direction automatically. A gyrocompass makes use of one of the seven fundamental ways ...
Google Shopping. Google Shopping, [2] formerly Google Product Search, Google Products and Froogle, is a Google service created by Craig Nevill-Manning which allows users to search for products on online shopping websites and compare prices between different vendors. Google announced at its Marketing Live event in May 2019 that the new Google ...
Freemasonry. Freemasonry or Masonry refers to various fraternal organisations that trace their origins to the local guilds of stonemasons that, from the end of the 14th century, regulated the qualifications of stonemasons and their interaction with authorities and clients. Freemasonry is the oldest fraternity in the world and among the oldest ...
1947. Kaon (or K meson), the first strange particle, discovered by George Dixon Rochester and Clifford Charles Butler [17] 1950. Λ0. (or lambda baryon) discovered during a study of cosmic-ray interactions [18] 1955. Antiproton discovered by Owen Chamberlain, Emilio Segrè, Clyde Wiegand, and Thomas Ypsilantis [19] 1956.
These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day. For events from c. 3200 BC – c. 500 see: Timeline of ancient history. For events from c. 500 – c. 1499, see: Timeline of post-classical history. For events from c. 1500, see: Timelines of modern history.
The presidency of William Henry Harrison, who died 31 days after taking office in 1841, was the shortest in American history. [ 6 ] Franklin D. Roosevelt served the longest, over twelve years, before dying early in his fourth term in 1945. He is the only U.S. president to have served more than two terms. [ 7 ]
The history of macOS, Apple's current Mac operating system formerly named Mac OS X until 2011 and then OS X until 2016, began with the company's project to replace its "classic" Mac OS. That system, up to and including its final release Mac OS 9 , was a direct descendant of the operating system Apple had used in its Mac computers since their ...
A "personal computer" version of Windows is considered to be a version that end-users or OEMs can install on personal computers, including desktop computers, laptops, and workstations. The first five versions of Windows– Windows 1.0, Windows 2.0, Windows 2.1, Windows 3.0, and Windows 3.1 –were all based on MS-DOS, and were aimed at both ...