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  2. Freefall (ride) - Wikipedia

    en.wikipedia.org/wiki/Freefall_(ride)

    On May 22, 1984, an accident occurred on The Edge, a first generation Freefall ride at Marriott's Great America (now Six Flags Great America) in Gurnee, Illinois.A supporting cable snapped, and the mechanism's anti-rollback devices failed to stop the car from plummeting nearly 60 feet to the bottom of the tower.

  3. Glossary of graph theory - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_graph_theory

    1. A leaf vertex or pendant vertex (especially in a tree) is a vertex whose degree is 1. A leaf edge or pendant edge is the edge connecting a leaf vertex to its single neighbour. 2. A leaf power of a tree is a graph whose vertices are the leaves of the tree and whose edges connect leaves whose distance in the tree is at most a given threshold.

  4. List of objects dropped on New Year's Eve - Wikipedia

    en.wikipedia.org/wiki/List_of_objects_dropped_on...

    On New Year's Eve, many localities in the United States and elsewhere mark the beginning of a new year through the raising or lowering of an object.Many of these events are patterned on festivities that have been held at New York City's Times Square since 1908, where a large crystal ball is lowered down a pole atop One Times Square (beginning its descent at 3:00:00 p.m. local time, and ...

  5. List of national flags by design - Wikipedia

    en.wikipedia.org/wiki/List_of_national_flags_by...

    Common design elements of flags include shapes such as stars, stripes, and crosses, layout elements such as including a canton (a rectangle with a distinct design, such as another national flag), and the overall shape of a flag, such as the aspect ratio of a rectangular flag (whether the flag is square or rectangle, and how wide it is) or the ...

  6. List of English flags - Wikipedia

    en.wikipedia.org/wiki/List_of_English_flags

    Flag of the Church of St Margaret, Westminster Abbey: A blue flag defaced in the centre with a gold dragon's head pierced by a cross, and a gold crowned portcullis in the canton. 2014: Flag of Exeter Cathedral: The coat of arms of Exeter Cathedral on a field of blue. Flag of Southwark Cathedral: A banner of the Cathedral's coat of arms.

  7. about URI scheme - Wikipedia

    en.wikipedia.org/wiki/About_URI_scheme

    about:flags: Displays a list of Developer Setting and Experimental features about:start: Shows the customizable (default) start page. about:config: Redirects to about:flags about:tabs: Shows the (default) new tab page. about:compat: Shows the Enterprise Mode list (if configured) about:edge: Shows the Edge logo. about:inprivate: Shows the ...

  8. List of former Six Flags Great America attractions - Wikipedia

    en.wikipedia.org/wiki/List_of_former_Six_Flags...

    The Edge 1983 1985 Intamin Freefall ride Orleans Place Passengers rode in four-seat-cars that were raised on a lift shaft that was similar to an elevator. The car paused at the top for a short time and were then dropped. Near the end, the track curved downwards and riders were placed onto the backs.

  9. Edge detection - Wikipedia

    en.wikipedia.org/wiki/Edge_detection

    As a pre-processing step to edge detection, a smoothing stage, typically Gaussian smoothing, is almost always applied (see also noise reduction). The edge detection methods that have been published mainly differ in the types of smoothing filters that are applied and the way the measures of edge strength are computed.