* Staph infection - grows according to bacterial contact surface area, which is exponential speed * Fort Worth, TX population growth - This is more logarithmic

* Staph infection - grows according to bacterial contact surface area, which is exponential speed * Fort Worth, TX population growth - This is more logarithmic than exponential. The faster that city grows the more the rate of growth accelerates. Its not exponential because those two values, growth and acceleration, are not bound by any fixed ratio, but the numbers are still remarkable enough to defy expectations given the current size of the city. * Compound interest * Fig leaf area expansion - The total area covered by a fig tree's leaves increases exponentially from early spring to early or mid summer. The bigger and higher quantity the leaves become the larger and more numerous they can become up to a point when the tree halts growth for the year. * Ratio of storage device capacity to price per storage unit over time - This is probably your best modern parallel to Moore's law in electronics. * Quantity of nodes in a tree data model by access frequency * Growth of wealth disparity in the US per capita over time * Electricity consumption in the US per capita over time