Everyone knows the mantra: No two snowflakes will ever be alike. People use this claim to illustrate the use of large numbers and to document nature's uniqueness.
Yet, consider Nancy Knight, a scientist at the National Center for Atmospheric Research, who claims she found two identical snowflakes in Wisconsin in 1988. Ignoring any worries as to how this discovery happened, please re-examine her evidence...a picture of the two snowflakes:
And, you might want to read "John Q. Public's" argument that the number of snowflakes that have fallen since the dawn of time is somewhere in the range of 1028 to 1030. Snow kidding!