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Previous Puzzles of the Month + Solutions

June - July 2006  

thinking man
logo puzzle of the month 1 Puzzle #107
Quiz/test #17 logo pzm 2
logo pzm 3 W-kammer #17
   Enjoy solving Archimedes' Lab™ Puzzles!

triangle-square Puzzle #107 TOP

  By folding (A) and cutting twice (B) the paper strip shown below, you can get 5 pieces with which you can form a square. Now, can you fold and cut twice the same strip and get only 4 pieces to form a perfect square again?

cutting puzzle

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To solve this puzzle follow the instructions below:

folding puzzle

Here another interesting solution posted by Dominique Ceugniet.

Previous puzzles of the month...
puzzle solver
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circle-triangle Quiz/Test #17 TOP
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Just Words

1. Rebus


2. Rebus


3. Anagram



Wunderkammer #17: M. Gardner TOP
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"There is still a difference between something
and nothing, but it is purely geometrical and
there is nothing behind the geometry"

- Martin Gardner

Our preferred American Math Authors (I):
Martin Gardner

  Martin Gardner was born October 21, 1914, in Tulsa, Oklahoma, the son of a geologist and oil producer. He is a recreational mathematician, magician, skeptic, popular author and contributor of the long-running but now discontinued "Mathematical Games" column in Scientific American. He originated the column in 1956, and his columns appeared until his retirement from the magazine in 1986. He graduated Phi Beta Kappa from the University of Chicago in 1936.
  Martin Gardner more or less singlehandedly sustained and nurtured interest in recreational mathematics in the U.S. for a large part of the 20th century. He is best known for his decades-long efforts in popular mathematics and science journalism, particularly through his "Mathematical Games" column in Scientific American. His interests range from science and philosophy to magic and the philosophical movement of skepticism, of which he is considered a notable figure in the field. After living in the western mountains of North Carolina for many years, he returned to Norman, Oklahoma, in 2004, his 90th year.
  Occasional conferences of people sharing his interests, known as the "Gatherings for Gardner", are held in his honor. The first was held in 1993.
  He is the author or editor of more than 100 books and booklets, including books on mathematics, science, pseudoscience, philosophy, literary criticism, and fiction (including “Visitors from Oz”, based on L. Frank Baum's “The Wonderful Wizard of Oz”, and stories about an imaginary numerologist named Dr. Matrix). Gardner has inspired and enlightened three generations of readers with the delights of mathematical recreations, the amazing phenomena of numbers, magic and puzzles, the play of ideas.
  In addition to his expository writing about mathematics, Gardner has been an avid controversialist on contemporary issues, arguing for his points of view in a wide range of fields, from general semantics to fuzzy logic to watching TV (he once wrote a negative review of the book “Four Arguments for the Elimination of Television”). Though particularly well known for his critique of pseudoscientific beliefs, Gardner has also taken sides on political, economic, historical and philosophical controversies.

Related Books
cover martin gardner

Mathematics, Magic & Mystery
Martin Gardner
The famed puzzle expert explains math behind a multitude of mystifying tricks: card tricks, stage "mind reading," coin and match tricks, counting out games, geometric dissections, etc.


Colossal Book of Mathematics
Martin Gardner
Although some people might think that 'recreational mathematics' is a contradiction of terms, Gardner's insight and excellent writing style really do make mathematics enjoyable.

arrow Suggest an ORIGINAL Wunderkammer fact

matemagica cover
MATEMAGICA Blackline masters for making over 25 funny math puzzles! (in Italian). Ideal for math workshops.
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Did you enjoy our puzzles and our optical illusions? You can find them every month in FOCUS Giochi magazine!

Focus Giochi

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Book of the Month
Gardner Puzzles
Martin Gardner's Mathematical Games (CD-ROM)
Contains all the "Mathematical Games" columns written by Martin Gardner that ran in "Scientific American"...
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He took my glasses off and he said, "Without your glasses, why,
you’re beautiful!"
I said, "Without
my glasses, you’re not half bad either".
- Kit Hollerbach


Math Gems
square formula
x2n + y2n = 1
for n large


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