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The triangle ABC has a right angle at C. Show that 1/ED=1/AC+1/AB
A railway train strikes a snowdrift which creates a constant resistance. How long does it take the snow to stop the train?
This is the title page of the geometry book of Jacob Kobel (1460 - 1533). The book dealt primarily with measurement, showing its readers how to use various instruments to measure fields, determine heights of buildings, and perform various other necessary tasks.
A tree is 20 feet tall and has a circumference of 3 feet. There is a vine that winds seven equally spaced times around the tree and reaches the top. What is the length of the vine?
Heron of Alexandria (ca 200) wrote on many aspects of applied mathematics.
We sadly announce the untimely death of one of Convergence's editorial board members.
A man died leaving 3 sons, to whom he bequeathed his estate in the following manner: to the eldest he gave 184 dollars; to the second 155 dollars and to the third 96 dollars;
History of Maya calendars, including the modified base 20 number system used in them
A number of 3 digits in base 7 has the same three digits...
There is much to see in this museum related to the history of mathematics.