Tuesday, 29 April 2014

"How fast a ballerina spins on the back of a pick up truck has nothing to do with how fast the truck drives around the block."

An analogy that helps me understand the relationship between the length of a day and the length of a year and why the day doesn't divide evenly into the year.

Monday, 3 February 2014


A mathematical way of saying - "Little drops of water make mighty oceans."

f(x) = \lim_{h\to 0}\frac{A(x+h)-A(x)}{h}

Tuesday, 14 January 2014