## MathChat

### Frank Morgan’s *Math Chat* Archives

Math Chat started as a live call-in cable TV show in Williamstown (1996-97, January 2000) and Princeton (1997-98), ran as a regular column in The Christian Science Monitor (1996-1998), continued on the Mathematical Association of America website, and finally became The Math Chat Book with a $1000 Math Chat Quest. Most of the columns are archived here.

### Baseball’s Million Dollar Prize and Goodbye

May 2, 2002

### Vanishing From the Face of the Earth

April 18, 2002

### Arranging Marriages

April 4, 2002

### Proofs for Everyone

March 21, 2002

### One Random Person

March 7, 2002

### Guessing the Red Card

February 21, 2002

### The Loudest Sound

February 7, 2002

### Palindromic Years

January 17, 2002

### If We Had Two Suns

January 3, 2002

### Once in a Blue Moon

December 20, 2001

### World Series

December 6, 2001

### Inexplicable Cheeseburgers

November 15, 2001

### The Ideal TV

November 1, 2001

### Space Curving Back

October 18, 2001

### Childhood Math Memories

October 4, 2001

### Bridge Voids

September 18, 2001

### Fractional Magic Square

September 6, 2001

### Pizza Pie

August 16, 2001

### Berkeley Hills

August 2, 2001

### Numbers on your Computer Screen

July 19, 2001

### Married Couples at a Party

July 5, 2001

### A Mathematician at Heaven’s Gate

June 21, 2001

### Bees and Beijing in One Hour?

June 7, 2001

### Making Change

May 17, 2001

### The Largest Number

May 3, 2001

### 293 Ways to Make Change for a Dollar

April 19, 2001

### Old Coins

April 5, 2001

### Russian Roulette

March 15, 2001

### Our Favorite Tax

March 1, 2001

### Fibonacci Surprise

February 15, 2001

### Well Arranged Sequences

February 1, 2001

### Repeating Digits

January 18, 2001

### Square Earth

January 4, 2001

### Surprising Math

December 21, 2000

### Ordering Candidates on Ballots

December 7, 2000

### Presidential Election and the Length of the Shortest Piece

November 16, 2000

### How to Split Your Vote

November 2, 2000

### Should Nader Voters Flip a Coin?

October 19, 2000

### Chance of Bank Balance $0.00

October 5, 2000

### Too Much to be a Coincidence?

September 21, 2000

### How to Play Fair With Loaded Dice

September 7, 2000

### Magician’s Solution From Math Olympiad

August 17, 2000

### US Third in Math Olympiad

August 3, 2000

### Which One Is Older?

July 20, 2000

### The Winning Voting System

July 6, 2000

### The Ideal Voting System

June 22, 2000

### Primes and Composites

June 1, 2000

### Millionaire’s Paradox

May 18, 2000

### Who Wants to be a Millionaire?

May 4, 2000

### “Average” Temperature

April 20, 2000

### Pens and Crystals

April 6, 2000

### Beeneet Kothari Wins First $1000 National High School Calculus Student Award

March 29, 2000

### Double Bubble Conjecture Proved

March 18, 2000

### Replacing Iowa and New Hampshire

March 2, 2000

### Brightest Moon for Thousands of Millennia?

February 17, 2000

### Mathematics Meetings Feature Proof of Dodecahedral Conjecture by Undergraduate Sean McLaughlin

February 3, 2000

### $1000 High School Calculus Student Award

January 6, 2000

### It Can Take a While to Wander Home

December 16, 1999

### The Best Two Points in a Square

December 2, 1999

### The Real Y2K Problem

November 18, 1999

### Once in a Millennium

November 4, 1999

### $200 Double Bubble New Challenge

October 7, 1999

### Decibels

September 14, 1999

### Humanity’s Life Span

September 2, 1999

### Guessing the Prime Number Theorem and Treacherous Logic

August 19, 1999

### Mathfest ’99: Primes and Prizes

August 5, 1999

### Bray Proves Penrose Conjecture in General Relativity

July 15, 1999

### Taniyama-Shimura Conjecture Proved

July 1, 1999

### Hales Proves Hexagonal Honeycomb Conjecture

June 17, 1999

### Why It’s Hard to Fold a Triangle in Half

June 4, 1999

### The Mathematician in the Desert

May 20, 1999

### Why is the Mathematician So Messy?

May 6, 1999

### Identical Calendars for 2000

April 15, 1999

### Shortest Enclosures on Surface of Cube

April 1, 1999

### Which Countries Are Most Like Stars?

March 18, 1999

### Readers Fault One-Page Proof of Fermat

March 4, 1999

### One-Page Proof of Fermat?

February 18, 1999

### Burning 1-Hour Fuses in 45 Minutes

February 4, 1999

### Unlucky in Cards

January 21, 1999

### Rolling a Die Until Every Face Has Appeared

January 7, 1999

### America’s Favorite Number

December 17, 1998

### From Galaxies to Electrons

December 3, 1998

### Losing Each Mile But Winning the Marathon

November 19, 1998

### One Trip to the Attic

November 5, 1998

### Dear Marilyn, About Leap Years

October 14, 1998

### The First Mathchat–Father’s Day Puzzler

June 14, 1996

## Older MathChats from The Christian Science Monitor

August 20, 1998

### Red Herrings And Young Children

July 23, 1998

July 9, 1998

### If You Could Design Your Own Numbers

June 25, 1998

June 11, 1998

May 28, 1998

May 14, 1998

### Which Three States Meet Three Times?

April 30, 1998

April 16, 1998

March 19, 1998

March 3, 1998

### Old Milk Bottles and Hotel Expenses

February 18, 1998

February 3, 1998

January 16, 1998

January 2, 1998

December 19, 1997

December 5, 1997

November 14, 1997

October 31, 1997

### Double Bubbles And Presidential Elections

October 25, 1997

October 17, 1997

October 3, 1997

September 19, 1997

### Zeros, Ping-Pong Balls, And Acceleration

September 5, 1997

August 22, 1997

August 8, 1997

July 25, 1997

July 11, 1997

June 27, 1997

June 13, 1997

May 23, 1997

May 9, 1997

April 25, 1997

April 11, 1997

March 28, 1997

March 14, 1997

February 28, 1997

February 14, 1997

January 31, 1997

January 17, 1997

### Presidential Elections, Challenges of the Years

November 8, 1996

October 11, 1996

September 27, 1996

### Prime Number Digits

September 13, 1996

### Marbles and Change

August 30, 1996

August 16, 1996

July 19, 1996

### If a Ball Goes Up, When Must It Come Down?

July 5, 1996