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  2. Dyson sphere - Wikipedia

    en.wikipedia.org/wiki/Dyson_sphere

    Dyson sphere. A hypothetical depiction of a Dyson swarm surrounding a star. Freeman Dyson, the first scientist to explore the concept. A Dyson sphere is a hypothetical megastructure that encompasses a star and captures a large percentage of its solar power output. [1] [2] [3] The concept is a thought experiment that attempts to imagine how a ...

  3. Replacement banknote - Wikipedia

    en.wikipedia.org/wiki/Replacement_banknote

    Replacement banknote. A $100 "star note". The asterisk, or "star" following the serial number indicates this is a replacement note for one that was misprinted or damaged in the printing process. A replacement banknote, commonly referred to as a star note, is a banknote that is printed to replace a faulty one and is used as a control mechanism ...

  4. Paper fortune teller - Wikipedia

    en.wikipedia.org/wiki/Paper_fortune_teller

    Paper fortune teller. A fortune teller is a form of origami used in children's games. Parts of the fortune teller are labelled with colors or numbers that serve as options for a player to choose from, and on the inside are eight flaps, each concealing a message. The person operating the fortune teller manipulates the device based on the choices ...

  5. A* search algorithm - Wikipedia

    en.wikipedia.org/wiki/A*_search_algorithm

    A* search algorithm. A* (pronounced "A-star") is a graph traversal and pathfinding algorithm, which is used in many fields of computer science due to its completeness, optimality, and optimal efficiency. [1] Given a weighted graph, a source node and a goal node, the algorithm finds the shortest path (with respect to the given weights) from ...

  6. Paper Money Value by Serial Numbers: Determine Your ... - AOL

    www.aol.com/paper-money-value-serial-numbers...

    On eBay, these kinds of bills can sell for anywhere from $10 to $300. The lower the serial number, the more valuable the currency is considered to be; a bill with the serial number 00000001 could ...

  7. One thousand origami cranes - Wikipedia

    en.wikipedia.org/wiki/One_thousand_origami_cranes

    The crane is considered a mystical or holy creature (others include the dragon and the tortoise) in Japan and is said to live for a thousand years. That is why one thousand origami cranes (千羽鶴, senbazuru, lit. 'one thousand cranes') are made, one for each year. In some stories, it is believed that the cranes must be completed within one ...

  8. Froebel star - Wikipedia

    en.wikipedia.org/wiki/Froebel_star

    Froebel stars as part of Christmas decoration. A Froebel star (German: Fröbelstern) is a Christmas decoration made of paper, common in Germany. In English it does not have a commonly recognised name; it can be referred to as an Advent star, Danish star, German star, Nordic star, Pennsylvanian star, Polish star, Swedish star, Christmas star, or Froebel star.

  9. Baseball card - Wikipedia

    en.wikipedia.org/wiki/Baseball_card

    Availability. c. 1860 [1] –present. Features. Baseball. A baseball card is a type of trading card relating to baseball, usually printed on cardboard, silk, or plastic. [2] In the 1950s, they came with a stick of gum and a limited number of cards. These cards feature one or more baseball players, teams, stadiums, or celebrities.