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  1. 藍光護目眼鏡 - 購物搜尋結果

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  2. en.wikipedia.org › wiki › SupernovaSupernova - Wikipedia

    4 天前 · A supernova ( pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion. The original object, called the progenitor, either collapses to a neutron star or black hole, or is completely ...

  3. en.wikipedia.org › wiki › UltravioletUltraviolet - Wikipedia

    2 天前 · Ultraviolet ( UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs, Cherenkov radiation, and ...

  4. en.wikipedia.org › wiki › List_of_highest-grossing_filmsList of highest-grossing films - Wikipedia

    2 天前 · Highest-grossing films Three of the four highest-grossing films, including Avatar at the top, were written and directed by James Cameron. With a worldwide box-office gross of over $2.9 billion, Avatar is proclaimed to be the "highest-grossing" film, but such claims usually refer to theatrical revenues only and do not take into account home video and television income, which can form a ...

  5. en.wikipedia.org › wiki › PiPi - Wikipedia

    5 天前 · The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...

  6. en.wikipedia.org › wiki › List_of_United_States_cities_byList of United States cities by population - Wikipedia

    2 天前 · This is a list of the most populous incorporated places of the United States. As defined by the United States Census Bureau, an incorporated place includes cities, towns, villages, boroughs, and municipalities.[a] A few exceptional census-designated places (CDPs) are also included in the Census Bureau's listing of incorporated places.[b ...

  7. en.wikipedia.org › wiki › UEFA_Champions_LeagueUEFA Champions League - Wikipedia

    1 天前 · 2023–24 UEFA Champions League. The UEFA Champions League (previously known as the European Cup, abbreviated as UCL, or sometimes, UEFA CL) is an annual club association football competition organised by the Union of European Football Associations (UEFA) and contested by top-division European clubs, deciding the competition winners through a ...

  8. en.wikipedia.org › wiki › List_of_busiest_airports_byList of busiest airports by passenger traffic - Wikipedia

    3 天前 · The world's busiest airports by passenger traffic are measured by total passengers provided by the Airports Council International, defined as passengers enplaned plus passengers deplaned plus direct-transit passengers. The world's busiest airport is Hartsfield–Jackson Atlanta International Airport in metropolitan Atlanta, Georgia, which has ...