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  2. Cryptocurrency - Wikipedia

    en.wikipedia.org/wiki/Cryptocurrency

    A logo for Bitcoin, the first decentralized cryptocurrency The genesis block of Bitcoin's blockchain, with a note containing The Times newspaper headline. This note has been interpreted as a comment on the instability caused by fractional-reserve banking.

  3. Haijin - Wikipedia

    en.wikipedia.org/wiki/Haijin

    Fu Yuanchu's 1639 memorial to the throne made the case that trade between Fujian and Dutch Formosa had made the ban entirely unworkable. [15] The lifting of the sea ban coincided with the arrival of the first Spanish galleons from the Americas, creating a global trade link that would not be interrupted until the following century. [38]

  4. Baidu - Wikipedia

    en.wikipedia.org/wiki/Baidu

    The case is still ongoing. One report claimed medical advertising makes up for 30% of Baidu's ad revenue, much of which comes from for-profit hospitals that belong to the "Putian Network", a collection of hospitals across the country founded by medical entrepreneurs associated with the Putian region of Fujian province. [129]

  5. Trinitite - Wikipedia

    en.wikipedia.org/wiki/Trinitite

    [3] The most common form of trinitite is green fragments of 1–3 cm thick, smooth on one side and rough on the other; this is the trinitite that cooled after landing still-molten on the desert floor. [22] [20] Around 30% of trinitite is void space, although quantities vary greatly between samples.

  6. Big Bang - Wikipedia

    en.wikipedia.org/wiki/Big_Bang

    The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The notion of an expanding universe was first scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.

  7. Gamma-ray burst - Wikipedia

    en.wikipedia.org/wiki/Gamma-ray_burst

    The observation of minutes to hours of X-ray flashes after a short gamma-ray burst is consistent with small particles of a primary object like a neutron star initially swallowed by a black hole in less than two seconds, followed by some hours of lesser energy events, as remaining fragments of tidally disrupted neutron star material (no longer ...

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