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Boomerang Instructions in 70 Languages
 Last updated 15th Aug 2015

             Boomerang by Prof Yutaka Nishiyama at river side of Yodo in 1992
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Plus online magazine of Cambrigde University, UK

Mysterious Number 6174, Mar 2006
Most popular article!
Winning Odds, June 2010 (C) Unit Fractions, Feb 2012 (C)
50 Visions of Mathematics
May 2014
Circles rolling on circles
May 2014

            Topics   ( Old Topics since Jan 2011 )
No.224 [Books] ドイツ語版、室内ブーメランの本です。 Zimmer Bumerangs by Eckhard Mawick , 30ページに私が考案した3枚翼ブーメランが掲載されています。12th Aug 2015.

No.223 [Books] 前にも紹介しましたが、イギリスのベストセラー作家アレックス・ベロスの著書がロシア語にも翻訳されています<ここ>。ロシア語を日本語に翻訳すると、私の論文「奇数の文化と偶数の文化」「2000円札はなぜ流通しないのか」の引用が確認できます。英語版の原著は<ここ>、日本語版は<ここ>です。 9th Aug 2015.

No.222 [Books] 100 Essential Things You Didn't Know You Didn't Know About Maths & The Arts by John D. Barrow cites my article at Chap. 22 Why are Eggs Egg-Shaped?, 5th Aug 2015.

No.221 [Book Review] 谷克彦氏による書評 "The Mysterious Number 6174: One of 30 Amazing Mathematical Topics in Daily Life" が掲載されました。< ここ >, 29th July 2015.



← World University Ranking Top 127/200 registered "Mysterious Number 6174."

              52 Mathematics in Daily Life  (J):Japanese, (S):Spanish, (C):Chinese, (Wi):Wikipedia

1. Boomerang (J)(Wi)(R)
2. Five Petals (J)
3. Fixed Point (J)(Wi)
4. Boolean Algebra (J)
5. Stroboscope (J)
6. Egg Shape (J) (S)
7. Barcodes (J)
8. Harmonic Series (J)
9. Moebius (J)
10. Hexaflexagon (J)(Wi)
11. Inside out (J)
12. Miura Folding (J)
13. Sepak Takraw (J)(P)
14. Increasing of Area (J)
15. 6174 (J)(Wi)
16. Palindrome 196 (J) (Wi)
17. Oldham Coupling (J)
18. Planimeter (J)
19. Sicherman Dice (J)
20. Montmort Theory (J)
21. Random Number (J)
22. Root 2 (J)
23. Cycloid (J)
24. Machin and Pi (J)
25. Burnside Lem. (J)(Q)
26. Heptadecagon (J)
27. Sudoku (J)
28. Odd and Even (J)
29. Curve & Straight (J)
30. Finger Count (J) (S)
31. Writing Direction (J)
32. Penney Ante (J)(C)(Wi)
33. Flex Geometry (J)
34. Van Aubel (J)(Wi)
35. Red or Black (J)
36. Similarity Trans (J)
37. 52 Cycling Cards (J)
38. Straw Flute (J)
39. Minor Keys (J)
40. Benham's Top (J)
41. 2000 Yen (J)(Wi)
42. Unit Fraction (J)(C)
43. Card Shuffle (J)
44. Kruskal Count (J)(F)
45. Triangle 3 Colors (J) (Q)
46. Fullerene C60 (J)
47. Random dots, Regular
48. 19 faces of HexFlex
49. Wheel Question (Q)(J)
50. 1/998001(J)
51. Zeta function (J)
52. Sepak based C60 (J)
53. 100-cells calc

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