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String girdling Earth is a mathematical puzzle with a counterintuitive solution. In a version of this puzzle, string is tightly wrapped around the equator of a perfectly spherical Earth. If the string should be raised 1 metre (3 ft 3 in) off the ground, all the way along the equator, how much longer would the string be?
Puzzle Quest 2 is a video game developed by Infinite Interactive for the Nintendo DS, Xbox Live Arcade, iOS, Android, Windows Phone 7, [7] and Microsoft Windows. It was released on June 22, 2010 by D3 Publisher. A version for the PlayStation Portable was in development, [8] but was cancelled due to sound bugs. [9]
Suppose the radius of the sphere is and the length of the cylinder (or the tunnel) is .. By the Pythagorean theorem, the radius of the cylinder is . Finding the measurements of the ring that is the horizontal cross-section.
I.m.o. logic doesn't affect the intrinsic mathematics of the puzzle, which is the fact that the circumference of a circle is 2 Pi times the radius. That is the essence of the puzzle. Ask any mathematician or logician whether this is a logic puzzle or a mathematics puzzle. The essence of the matter is a geometric property, not a logical one.
Puzzle Quest 3 was developed by Infinity Plus 2 and published by 505 Games for release on Microsoft Windows and iOS and Android devices on March 1, 2022. [3] An early access form for Android was first released on March 26, 2021. [4] [5] Puzzle Quest 3 is a direct follow up of Puzzle Quest: Challenge of the Warlords. [6]
A full sequel to Puzzle Quest, Puzzle Quest 2, was released on 22 June 2010 and was seen as a return to form for the Puzzle Quest series. Fawkner and Infinite Interactive licensed the game design to Boston-based Demiurge Studios to create Marvel Puzzle Quest: Dark Reign , while he worked on another project he called "Puzzle Quest and Warlords ...
String girdling Earth: Image title: Visualisation of the String girdling Earth puzzle showing that the length added to the circumference (cyan) is dependent only on the additional radius (red) and not the original circumference (black), by CMG Lee. Width: 100%: Height: 100%
The Meta Quest 2 is a virtual reality headset developed by Reality Labs. Quest 2 or Quest II may refer to: Dragon Quest II, a 1987 role-playing video game; Deltora Quest 2, a series of children's fantasy books; King's Quest II, second installment in the King's Quest series of graphic adventure games