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- Rubik's_Clock abstract "Rubik's Clock is a mechanical puzzle invented and patented by Christopher C. Wiggs and Christopher J. Taylor. The Hungarian sculptor and professor of architecture Ernő Rubik bought the patent from them to market the product under his name. It was first marketed in 1988.Rubik's Clock is a two-sided puzzle, each side presenting nine clocks to the puzzler. There are four wheels, one at each corner of the puzzle, each allowing the corresponding corner clock to be rotated directly. (The corner clocks, unlike the other clocks, rotate on both sides of the puzzle simultaneously and can never be operated independently. Thus the puzzle contains only 4 independent clocks.)There are also four buttons which span both sides of the puzzle; each button arranged such that if it is "in" on one side it is "out" on the other. The state of each button (in or out) determines whether the adjacent corner clock is mechanically connected to the three other adjacent clocks on the front side or on the back side: thus the configuration of the buttons determines which sets of clocks can be turned simultaneously by rotating a suitable wheel.The aim of the puzzle is to set all nine clocks to 12 o'clock (straight up) on both sides of the puzzle simultaneously.It is actually very easy to solve this puzzle. One reason for this is that unlike (for example) Rubik's Cube, the Clock is a commutative puzzle: the order in which operations are done does not matter. (This is true provided we understand "operation" to mean an action of "setting the buttons and then rotating a wheel"—of course individual button moves do not commute with wheel moves.) Consequently a complete mathematical solution can be obtained merely using techniques of linear algebra without involving the subject of group theory which is often required in sequential move puzzles.[citation needed]The current world record for solving the puzzle as quickly as possible is held by Sam Zhixiao Wang (王志骁), with a time of 5.27 seconds single, set at Shanghai Winter 2011. The record average of 5 (dropping best and worst singles) is 6.68 seconds by Evan Liu, done at the Nottingham Open 2014.".
- Rubik's_Clock thumbnail Rubiks-clock.jpg?width=300.
- Rubik's_Clock wikiPageExternalLink 4661.
- Rubik's_Clock wikiPageExternalLink recs_clock.html.
- Rubik's_Clock wikiPageExternalLink rubiksclock.html.
- Rubik's_Clock wikiPageID "1387081".
- Rubik's_Clock wikiPageRevisionID "606304528".
- Rubik's_Clock hasPhotoCollection Rubik's_Clock.
- Rubik's_Clock subject Category:Combination_puzzles.
- Rubik's_Clock subject Category:Mechanical_puzzles.
- Rubik's_Clock subject Category:Puzzles.
- Rubik's_Clock type Abstraction100002137.
- Rubik's_Clock type CombinationPuzzles.
- Rubik's_Clock type Communication100033020.
- Rubik's_Clock type MechanicalPuzzles.
- Rubik's_Clock type Message106598915.
- Rubik's_Clock type Problem106784003.
- Rubik's_Clock type Puzzle106784639.
- Rubik's_Clock type Puzzles.
- Rubik's_Clock type Question106783768.
- Rubik's_Clock type Subject106599788.
- Rubik's_Clock comment "Rubik's Clock is a mechanical puzzle invented and patented by Christopher C. Wiggs and Christopher J. Taylor. The Hungarian sculptor and professor of architecture Ernő Rubik bought the patent from them to market the product under his name. It was first marketed in 1988.Rubik's Clock is a two-sided puzzle, each side presenting nine clocks to the puzzler. There are four wheels, one at each corner of the puzzle, each allowing the corresponding corner clock to be rotated directly.".
- Rubik's_Clock label "Rubik's Clock".
- Rubik's_Clock label "Rubik's Clock".
- Rubik's_Clock label "Rubik's clock".
- Rubik's_Clock label "Rubiks Uhr".
- Rubik's_Clock label "ルービッククロック".
- Rubik's_Clock label "魔表".
- Rubik's_Clock sameAs Rubiks_Uhr.
- Rubik's_Clock sameAs Rubik's_clock.
- Rubik's_Clock sameAs Rubik's_Clock.
- Rubik's_Clock sameAs ルービッククロック.
- Rubik's_Clock sameAs m.04yhtc.
- Rubik's_Clock sameAs Q1759004.
- Rubik's_Clock sameAs Q1759004.
- Rubik's_Clock sameAs Rubik's_Clock.
- Rubik's_Clock wasDerivedFrom Rubik's_Clock?oldid=606304528.
- Rubik's_Clock depiction Rubiks-clock.jpg.
- Rubik's_Clock homepage recs_clock.html.
- Rubik's_Clock isPrimaryTopicOf Rubik's_Clock.
