Sharon Hewitt Rawlette has written an excellent compendium of coincidence stories with explanations and uses, The Source and Significance of Coincidences. In this guest editorial, she takes apart the ...

The law of large numbers describes how the results of an experiment will get closer to the expected value if a person repeats it a significant number of times and calculates an average. It bears some ...

Imagine a horizontal line. The very left is marked one thousand and the very right is marked one billion. On this line, where would you add a marker to represent one million? If you said somewhere in ...