# Did you know?

0! = 1
0! = 1 (zero factorial equals one) . . . 5! = 5x4x3x2x1 = 120 4! = 4x3x2x1 = 24
1st Woman Mathematician
In 400 AD, Hypatia writes commentaries on Diophantus and Apollonius. She is the first recorded female mathematician and she distinguishes
Abacus
The abacus was developed in the Middle East and areas around the Mediterranean in about 3000 BC.
Algebra
Around 825 A.D. in Baghdad, Mohammed ibn-Musa al-Khwarizimi wrote a book called “Kitab al-jabr wa al-muqabalah”, which means “The science
Archimedes
250 BC: In On the Sphere and the Cylinder, Archimedes gives the formulae for calculating the volume of a sphere
Art Garfunkel
Singer Art Garfunkel holds an MA in mathematics from Columbia. He started on his PhD, but quit in order to
Birthday
In a group of 23 people, at least two have the same birthday with a probability greater than ½. http://www.cut-the-knot.org/do_you_know/index.shtml
Bones
Paleolithic people in central Europe recorded the first numbers on bones.
Card Hand
There are 2, 598, 960 five-card hands possible in a 52-card deck of cards. http://www.jayp.net/trivia/science1.htm
China Single File
If the population of China walked past you in single file, the line would never end because of the rate
Christopher Wren
Christopher Wren, the architect of St. Paul’s Cathedral in London, earned a degree in mathematics.
Danica McKellar
Actress Danica McKellar (Winnie Cooper from The Wonder Years) was a math major. She now advocates math education through bestsellers like Math
Date and Time
At 12:34 on May 6, 1978, there was a peculiar lining up of dates and hours that will not happen
David Robinson
San Antonio Spurs center David Robinson received a BS in mathematics from the United States Naval Academy.
Florence Nightingale
Florence Nightingale was a pioneer in professional nursing. She was the first person in the English-speaking world to apply statistics
Four
Four is the only number with the same amount of letters as its actual value.
Frank Ryan
Frank Ryan, star quarterback for the Cleveland Browns in the sixties, received his degree in mathematics. He also received a
Googol
“Googol” is the mathematical term for a 1 followed by a hundred zero’s. The term was coined by Milton Sirotta,
Greeks
Greeks began to use written numerals in about 450 BC.
Hardy-Weinberg
In 1908, Hardy and Weinberg present a law describing how the proportions of dominant and recessive genetic traits would be
Harry Blackmun
Former Supreme Court Justice Harry Blackmun received a degree in mathematics from Harvard.
Incas
The Incas and certain other pre Columbian tribes in Peru developed the Decimal System hundreds of years before it was
J. P. Morgan
J. P. Morgan, banking, steel, and railroad tycoon, majored in mathematics.
Jiffy
A ‘jiffy’ is an actual unit of time for 1/100th of a second.
Letter ‘A’
From number 0 to 1000, the letter ‘A’ only appears in 1000 (one thousand).
Lewis Carroll
Lewis Carroll, author of Alice in Wonderland, majored in mathematics.
Michael Jordan
Basketball player Michael Jordan started out as a math major but switched majors his Jr. Year.
New York Hair
At any given time in New York there live at least two people with the same number of hairs. http://www.cut-the-knot.org/do_you_know/index.shtml
Ocean Horizon
If your eyes are six feet above the surface of the ocean, the horizon will be about three statute miles
Palindrome
111, 111, 111 x 111, 111, 111 = 12, 345, 678, 987, 654, 321, which is a palindrome (read the
Pattern of an Odd Number
Putting an odd number of zeros between the following numbers below to form a new number, eleven is a factor
Pi
Pi = 3.14159 26535 89793 23846 26433 83279 50288 41971 69399 37510 58209 74944 59230 78164 06286 20899 86280 34825
Recite Pi
Gaurav Rajav, a 15-year old Virginia high school student, recited 8, 784 digits of Pi — the non-repeating and non-terminating
Reindeer
Assuming Rudolph was in front, there are 40320 ways to arrange the other eight reindeer. http://www.jayp.net/trivia/science1.htm