Graphs comparing doubling times and half lives of exponential growths (bold lines) and decay (faint lines), and 70/t and 72/t approximations. In the <a class="external text" href="https://upload.wikimedia.org/wikipedia/commons/8/88/Doubling_time_vs_half_life.svg">SVG version</a>, hover over a graph to highlight it and its complement.
<a href="//commons.wikimedia.org/wiki/User:Cmglee" title="User:Cmglee">Cmglee</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>