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  1. en.wikipedia.org › wiki › Apple_IncApple Inc. - Wikipedia

    Apple Inc. (formerly Apple Computer, Inc.) is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley.It designs, develops, and sells consumer electronics, computer software, and online services.Devices include the iPhone, iPad, Mac, Apple Watch, Vision Pro, and Apple TV; operating systems include iOS, iPadOS, and macOS; and ...

  2. en.wikipedia.org › wiki › IP_CodeIP code - Wikipedia

    The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures ...

  3. The Advanced Encryption Standard (AES), also known by its original name Rijndael (Dutch pronunciation: [ˈrɛindaːl]),[5] is a specification for the encryption of electronic data established by the U.S. National Institute of Standards and Technology (NIST) in 2001.[6] AES is a variant of the Rijndael block cipher[5] developed by two Belgian ...

  4. en.wikipedia.org › wiki › SeppukuSeppuku - Wikipedia

    Seppuku (切腹, lit. ' cutting [the] belly '), also called harakiri (腹切り, lit. ' abdomen/belly cutting ', a native Japanese kun reading), is a form of Japanese ritualistic suicide by disembowelment.It was originally reserved for samurai in their code of honour, but was also practised by other Japanese people during the Shōwa era (particularly officers near the end of World War II) to ...

  5. In mathematics, the Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones. Numbers that are part of the Fibonacci sequence are known as Fibonacci numbers, commonly denoted Fn . The sequence commonly starts from 0 and 1, although some authors start the sequence from 1 and 1 or sometimes (as did Fibonacci ...

  6. Climate change threatens people with increased flooding, extreme heat, increased food and water scarcity, more disease, and economic loss. Human migration and conflict can also be a result. [12] The World Health Organization (WHO) calls climate change the greatest threat to global health in the 21st century. [13]

  7. en.wikipedia.org › wiki › Black_holeBlack hole - Wikipedia

    Black holes are commonly classified according to their mass, independent of angular momentum, J.The size of a black hole, as determined by the radius of the event horizon, or Schwarzschild radius, is proportional to the mass, M, through = , where r s is the Schwarzschild radius and M is the mass of the Sun. ...

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