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  2. Decibel - Wikipedia

    en.wikipedia.org/wiki/Decibel

    Decibel. The decibel (symbol: dB) is a relative unit of measurement equal to one tenth of a bel ( B ). It expresses the ratio of two values of a power or root-power quantity on a logarithmic scale. Two signals whose levels differ by one decibel have a power ratio of 10 1/10 (approximately 1.26) or root-power ratio of 10 1/20 (approximately 1.12 ).

  3. Climate change - Wikipedia

    en.wikipedia.org/wiki/Climate_change

    In common usage, climate change describes global warming —the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate.

  4. Neanderthal - Wikipedia

    en.wikipedia.org/wiki/Neanderthal

    The northernmost bound is generally accepted to have been 55°N, with unambiguous sites known between 50 – 53°N, although this is difficult to assess because glacial advances destroy most human remains, and palaeoanthropologist Trine Kellberg Nielsen has argued that a lack of evidence of Southern Scandinavian occupation is (at least during ...

  5. Chaturbate - Wikipedia

    en.wikipedia.org/wiki/Chaturbate

    Chaturbate. Chaturbate is a pornographic website providing live webcam performances by individual webcam models and couples, typically featuring nudity and sexual activity ranging from striptease and erotic talk to more explicit sexual acts such as masturbation with sex toys. The site is divided into six categories: female cams, male cams ...

  6. Urban Dictionary - Wikipedia

    en.wikipedia.org/wiki/Urban_Dictionary

    Urban Dictionary is a crowdsourced English-language online dictionary for slang words and phrases. The website was founded in 1999 by Aaron Peckham. Originally, Urban Dictionary was intended as a dictionary of slang or cultural words and phrases, not typically found in standard English dictionaries, but it is now used to define any word, event, or phrase (including sexually explicit content ...

  7. AOL - Wikipedia

    en.wikipedia.org/wiki/AOL

    AOL (stylized as Aol., formerly a company known as AOL Inc. and originally known as America Online [1]) is an American web portal and online service provider based in New York City, and a brand marketed by Yahoo! Inc.

  8. Hydrogen - Wikipedia

    en.wikipedia.org/wiki/Hydrogen

    Hydrogen is a chemical element; it has symbol H and atomic number 1. It is the lightest element and, at standard conditions, is a gas of diatomic molecules with the formula H2, sometimes called dihydrogen, [11] but more commonly called hydrogen gas, molecular hydrogen or simply hydrogen. It is colorless, odorless, tasteless, [12] non-toxic, and ...

  9. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    Whereas a barcode is a machine-readable optical image that contains information specific to the labelled item, the QR code contains the data for a locator, an identifier, and for web-tracking. To efficiently store data, QR codes use four standardized modes of encoding: (i) numeric, (ii) alphanumeric, (iii) byte or binary, and (iv) kanji. [4] Compared to standard UPC barcodes, the QR labelling ...

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