top post selection Sport Rubik's cube

mousumimou (61)Verified+Delegator[200sp]in Steem Bangladesh • 4 years ago (edited)

Hi i am mousumimou. I have participation top sport. thanks @steem- bangladesh community organized this good event

Introduction

Rubik’s Cube is a 3D amalgamation puzzle make-believe in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik and was at first called the famous Cube This invention caused the common attention in the earth in arrears to its distinctive characteristics, which exerted a profound contact on mankind. Rubik’s Cube is planned as one of the 100 a good number influential inventions during the 20th century Additionally, it is extensively careful to be the world’s best-selling toy . It won a German Game of the day elite give and won like awards for top toy in the UK, France, and the US.
Although the Rubik’s Cube reached its height of mainstream popularity in the 1980s, it is nonetheless commonly recognized and used.

Who is invention Rubik's cube?

The Rubik's Cube is a 3-D combination puzzle invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. firstly called the Magic Cube.

Rubik's Cube another name
i.Magic Cube,
ii.Speed Cube,
iii.Puzzle Cube,
iv.Cube

Available in the world Rubik's cube

In 1977 as Hungarian Magic Cube, 1st test batches acquit in Budapest 1980 as Rubik's Cube, worldwide–present

Rubik's Cube origin and development

The perception of Rubik’s Cube originated from the China Luo reserve which preserve be simplified into a Jiugong map, as given away in Figure Jiugong chart is a zero-dimensional third-order cube. The n-order fairylike ethical is a accurate configuration bent by a permutation of figures 1, 2, 3, …, n2 in an n-order square, which makes the the lot of the statistics in apiece row, column, and two diagonal lines n(n2+1)/2n(n2+1)/2. This is called a allure fairly constant. The tricks adjust unremitting of a third-order cube is 15

2nd step

In the Qing Dynasty, Chinese scholars put into view the opinion of by means of digital pieces of three-dimensional charming squares. In fact, this was a three-dimensional second-order cube prototype, as made known inThe three-dimensional captivating shape did not hold a revolving characteristic until Rubik calculated a rotatable technicalities cube in 1974.Japanese Stonefur finished the unaffected intend on your own in 1976.

Current Rubik's Cube

the magical cube be capable of be alienated into two categories: cubic cube and in particular shaped cube. A cubic cube refers to a cube in a container configure that is not changed, but the cube’s demand increases. near are sundry variations of Rubik’s Cubes with up to 33 layers, with 2 × 2 × 2 (Pocket/Mini Cube), par 3 × 3 × 3 cube, 4 × 4 × 4 (Rubik’s Revenge/Master Cube), and 5 × 5 × 5 (Professor’s Cube) the generally positively known. The 17 × 17 × 17 “Over the Top” cube (available not on time 2011) was until December 2017 the main (and generally expensive, price added than US $2,000) commercially sold cube.

How to Solve a Rubik's Cube:

video You can easily learn from bangali language

7-Step Guide

Step 1: Create White Cross. Begin by holding the cube with the white face up. ...
Step 2: Solve White Corners. ...
Step 3: Solve Middle Layer. ...
Step 4: Create Yellow Cross. ...
Step 5: Swap Yellow Edges in Top Layer. ...
Step 6: Position Yellow Corners. ...
Step 7: Solve Final Layer Corners.

Top five Rubik's speedsolvers

1.Erik Akkersdijk
2.Minh Thai
3.Jessica Fridrich
4.Ron van Bruchem
5.Feliks Zemdegs

Competition records

Single time: The planet chronicle time for solving a 3×3×3 Rubik's Cube is 3.47 seconds, in custody by Du Yusheng (杜宇生) of China, on 24 November 2018 at Wuhu release 2018.

Average time: The earth log typical of the halfway point three of five explain epoch (which excludes the best ever and slowest) is 5.53 seconds, resolved by Feliks Zemdegs of Australia at peculiar Day at Sydney 2019.

One-handed solving: The globe trace best ever one-handed explain is 6.82 seconds, unyielding by Max Park of the United States on 12 October 2019 at Bay sphere Speedcubin' 20 2019. The humanity greatest longest common of five one-handed solves is 9.42 seconds, and adjust by pass with flying colors recreational area at Berkeley Summer 2018.

Feet solving: The humankind trace highest Rubik's Cube disentangle with one's feet is 15.56 seconds, prearranged by Mohammed Aiman Koli of India on 27 December 2019 at VJTI Mumbai Cube sweeping 2019.

when Bangladesh started Rubik's Cube?
(11May2011)

Cubing Bangladesh' is the very first community of Rubik's Cube and other twisting puzzle solvers of Bangladesh. It started its journey back in May 2011 when a group of university students decided to arrange a standard Cube Contest that would follow the WCA regulations.

June 5, 1982 First world championship

On June 5, 1982, the first world championship was seized in Budapest, Hungary. 19 populate competed in the result and the American Minh Thai won with a unattached get to the bottom of time of 22.95 seconds and was painstaking as the First World Record of the Rubik's Cube

Relevance and application of mathematical group theory

Rubik's Cube lends itself to the effort of mathematical come together theory, which has been supportive for deducing convinced algorithms – in particular, individuals which gain a commutator structure, namely XYX−1Y−1 (where X and Y are express moves or move-sequences and X−1 and Y−1 are their respective inverses), or a structure, namely XYX−1, regularly referred to by speedcubers colloquially as a "setup move". In addition, the piece of evidence that nearby are well-defined within the Rubik's Cube arrange enables the puzzle to be scholarly and mastered by affecting up through a mixture of self-contained "levels of difficulty". For example, one such "level" may possibly comprise solving cubes which be inflicted with been tousled by lone 180-degree turns. These subgroups are the code underlying the laptop cubing methods by Thistlethwaite and Kociemba, which crack the cube by spread dropping it to a different subgroup.

why Rubik's cube I like?