Truck carrying hay

Title Info
Source Dan L. Perlman
Lessons Energy Flow
Date July 08, 2006
Location Montana,USA,North America
Truck carrying tons of hay, Montana
Related materials: Grass and energy flow
Consider the vast amount of solar energy stored in the rolls of hay--and the solar energy in the truck's gas tank.

Truck carrying dozens of tons of hay, Montana. This image shows how solar energy can be stored in two very different types chemical packages. The giant hay rolls stored solar energy captured when they were growing grass, while the truck runs on gasoline refined from oil that is the residue of stored chemical energy found in plants that grew tens of millions of years ago.