Postage Stamp Selector
Select postage stamps that add up to the needed amount of postage.

HTML5 Canvas 555 Timer Pulse Width Modulation Simulator
Change the duty cycle and see the results plotted.

 Feed the Planet.
 Slow Global Warming.
 Food mining on comets and asteroids.
 American Society for the Prevention of Cruelty to Autotrophs.
 It doesn't taste good because you killed something.
 Golden Age of Food Processing Technology.
 Food for deep space colonization.