epub |eng | 2012-10-04 | Author:Oswald Jacoby,William H. Benson & William H. Benson [Jacoby, Oswald]

17. flowers Seven residents in our village are avid exhibitors at the local flower show. Their names are Mr. Aster, Mr. Dahlia, Mr. Geranium, Mr. Phlox, Mr. Rose, Mr. Snapdragon, ...

epub, azw3, pdf |eng | 2012-05-19 | Author:Lewis Smile [Smile, Lewis]

Add in the number sequence you learned just a minute ago (11, 8, 2, etc) and your magic square skills are now complete, and you are ready to show the ...

epub, pdf |eng | 2013-03-15 | Author:Martin Gardner

16. At any given instant the four bugs form the corners of a square which shrinks and rotates as the bugs move closer together. The path of each pursuer will ...

epub, pdf |eng | 2016-03-13 | Author:Alex Bellos [Alex Bellos]

Think of a number. The number must be a three-digit number in which the first and last digits differ by at least two. So, for example, 258. Reverse this number ...

epub |eng | 2015-03-13 | Author:Henle, Jim;

Dot with the remaining butter, sprinkle the remaining sugar, dribble some more molasses, and sprinkle on the raisins (as many as you like). Roll up the dough starting with the ...

epub |eng | 2012-10-14 | Author:Stewart, Ian;

“Strictly greater,” I added, “means what it says: greater and not equal. The point is that whatever your opponent does, a dominant strategy gives the greatest payoff.” “Super!” “If both ...

mobi |eng | 0101-01-01 | Author:Edward B. Burger [Burger, Edward B.]

.1. Three Switches, Two Rooms, and One Bulb. Often an optimal solution can be uncovered only by first finding any—even a ridiculous—solution and then refining your thinking. So don’t stare ...

epub |eng | 2011-02-18 | Author:Pickover, Clifford A.;

The Kurchan Square Another amazing magic square is the Kurchan square, named after its discoverer, Rodolfo Marcelo Kurchan from Buenos Aires, Argentina.9 He believes this to be the smallest, nontrivial ...

epub |eng | 1999-10-27 | Author:Kaplan, Robert [Kaplan, Robert]

The triumph of the Arabic numerals Yet Adam Riese was right: people skilled in arithmetic on an abacus, or with their fingers, calculate much more quickly than do those who ...

epub, pdf |eng | 2019-11-16 | Author:Alex Bellos [Alex Bellos]

[5] A year ago, I learned that Caleb has exactly two children. I asked him one of the following two questions: ‘Is your older child a girl?’ or ‘Is your ...

epub |eng | 2000-01-14 | Author:Charles Seife [Seife, Charles]

Figure 28: Different motions, all governed by the same differential equation In 1673 an esteemed German lawyer and philosopher visited London. His name was Gottfried Wilhelm Leibniz. He and Newton ...

epub |eng | 2012-10-05 | Author:Karl Fulves

Scrambled States The correct answer to the first question is IOWA. The answer to the second question is OHIO. Puzzle Parts The rule that decides what numbers go in which ...

epub |eng | 2019-09-07 | Author:Eddie Woo

CHAPTER 15 STARS IN YOUR EYES Quick, picture a star in your mind! What does it look like? There’s a good chance that you pictured a shape with sharp points ...

epub |eng | 2014-06-28 | Author:Thomas A. Bass [Bass, Thomas A.]

9 Lady Luck Do not approach casinos with timidity or reverence. They are simply fruit-machines tended by bank clerks and mechanics. Ian Fleming With the Project’s computers performing exactly as ...

epub, pdf |eng | | Author:Matt Parker

The Tower of Hanoi from Récréations mathématiques. The Tower of Hanoi, or to quote Lucas exactly, ‘La Tour d’Hanoï’, takes up only three pages in the book, roughly a third ...