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e. In chemistry, pH ( / piːˈeɪtʃ / pee-AYCH ), also referred to as acidity or basicity, historically denotes " potential of hydrogen " (or "power of hydrogen"). [1] It is a logarithmic scale used to specify the acidity or basicity of aqueous solutions. Acidic solutions (solutions with higher concentrations of hydrogen ( H+) ions) are ...
v. t. e. 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 ...
The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...
Signature. Elvis Aaron Presley [a] (January 8, 1935 – August 16, 1977), known mononymously as Elvis, was an American singer and actor. Known as the " King of Rock and Roll ", he is regarded as one of the most significant cultural figures of the 20th century. Presley's energized interpretations of songs and sexually provocative performance ...
The FIFA World Cup, often called the World Cup, is an international association football competition among the senior men's national teams of the members of the Fédération Internationale de Football Association ( FIFA ), the sport's global governing body. The tournament has been held every four years since the inaugural tournament in 1930 ...
v. t. e. Instagram [a] is a photo and video sharing social networking service owned by Meta Platforms. It allows users to upload media that can be edited with filters, be organized by hashtags, and be associated with a location via geographical tagging. Posts can be shared publicly or with preapproved followers.
Windows 11 is the latest major release of Microsoft 's Windows NT operating system, released on October 5, 2021. It succeeded Windows 10 (2015) and is available for free for any Windows 10 devices that meet the new Windows 11 system requirements. Windows 11 features major changes to the Windows shell influenced by the canceled Windows 10X ...
My Hero Academia ( Japanese: 僕のヒーローアカデミア, Hepburn: Boku no Hīrō Akademia) is a Japanese manga series written and illustrated by Kōhei Horikoshi. It has been serialized in Shueisha 's shōnen manga magazine Weekly Shōnen Jump since July 2014, with its chapters collected in 40 tankōbon volumes as of April 2024.