# Martin Gardner and *Scientific American*

## Martin Gardner's "Mathematical Games" columns (page 1)

#### The Canon: The fifteen "Mathematical Games" books (page 2)

#### The other "Mathematical Games" spin-offs (page 3)

#### What made "Mathematical Games" special (page 4)

With his second published book *Mathematics, Magic and Mystery* (Dover, 1956)
out a few months, Martin submitted an article to *Scientific American* about
a paperfolding activity with mathamatical underpinnings.
"Flexagons, in which strips of paper are used to make hexagonal figures with
unusual properties" appeared as a feature in the Dec 1956 issue,
and was an immediate hit.

As Martin recounts in his memoirs, "all over New York City readers of the
magazine, especially those in advertising offices, were making and flexing
flexagons." Here's a 2-minute clip from the 46-minute David Suzuki CBC
documentary *The_Nature_of_Things* in which Martin
speaks about this.

Martin was offered a monthly column in the magazine; this was his big break, and launched the most successful and influential phase of his career.

Less well known is the fact that Martin had written an earlier article on "Logic
Machines" for *Scientific American* (186, 68–73, Mar 1952), which
begins, "The ancient idea of a device which would test the validity of a system
of thought has recently made progress." In due course, that was expanded into
the second book he wrote, *Logic Machines and Diagrams* (McGraw-Hill, 1958),
though it didn't appear until after *Mathematics, Magic and Mystery* (Dover,
1956), which had been written later.

By the time Martin broke out in style at the end of 1956 with "Flexagons," he was
five years into his ten years as contributing editor for *Humpty
Dumpty's Magazine* for children, where he often invented new games that
involved the cutting and folding of paper.
The kind of flexagons he first wrote about in *Scientific American* were
hexaflexagons, and they had their origins
fifteen years earlier at Princeton, due to explorations by a team including
Arthur Stone, Bryant Tuckerman, Richard Feynman, and John Tukey.

## "Mathematical Games"

Martin wrote one every month into the early 1980s, when he announced retirement plans. From then on they became quite sparodic, with the final one, on Steiner trees on a checkerboard, appearing as "Casting a net on a checkerboard and other puzzles of the forest" (256, 6, 16–23, Jun 1986). (The columns had always appeared under titles assigned by editors.)

The 300-odd "Mathematical Games" columns that Martin wrote were enormously popular and successful. Through them, hundreds of thousands of readers first learned of hexaflexagons, polyominoes, the Soma cube, pentominoes, rep-tiles, tangrams, the art of M. C. Escher, origami, Conway's Game of Life, Penrose tiles, fractals, RSA cryptography, and much more. For more information on the range of topics covered, click here.

Thanks to the MAA, seven classic "Mathematical Games" columns are available online, as they appeared in later books.

Every article in every issue of *Scientific American* from the 1970s and
1980s is indexed (and linked to) here:
1970s,
and
1980s.

John Miller compiled a chronological list of all the "Mathematical Games" columns, and posted them online with Martin's permission.

In Aug 1998, Martin wrote one final column for *Scientific American*,
"A Quarter Century of Recreational Mathematics." In part, it was a survey of
the best of the "Mathematical Games" columns, but he found ways to sneak in new
challenges and results too. This delightful article, which he wrote at the age
of 83, shows that he certainly hadn't lost his touch.

Even from the earliest days, Martin's columns attracted a lot of attention, and associated eye-catching images often graced the coveted cover spot of the magazine.

The three covers shown above resurfaced in recent online *Scientific
American* pieces in
Jul 2011,
Mar 2011, and
Oct 2013, respectively.

The first image in the second display above accompanied "The Remarkable Lore of the Prime Number" (210, 3, 120–128, Mar 1964); it shows the Ulam spiral. The second is associated with the Too Hot To Hoot column "On Cellular Automata, Self-Reproduction, The Garden of Eden and the Game of 'Life'" (224, 2, 112–117, Feb 1971), which was a followup to the legendary "The Fantastic Combinations of John Conway's New Solitaire Game 'Life'" column (233, 4, 120–123, Oct 1970). The third one illustrates "Extraordinary nonperiodic tiling that enriches the theory of tiles" (236, 1, 110–121, Jan 1977) on what we know today as Penrose tiles.