Marisela: represents good raw material that civilization can mold.
The flows within the model represent material, energy, data, or information.
The group began working on the record after its decision to disband, and its songs represent material written throughout the band's ten-year initial career.
The surface level represents material deposited during the Quaternary period.
A gold ingot, a piece of metal shaped like a crucible and two smaller pieces probably represent raw material for the production of such objects.
Each of the "Computer" chapters represents material the supercomputer collects in its attempts to better translate and understand the alien message it is receiving.
(He recalled an agent who wrote, "We only like to represent material that someone might actually want to read.")
Chondrites are typically about 4.55 billion years old and are thought to represent material from the asteroid belt that never formed into large bodies.
Most achondrites are also ancient rocks, and are thought to represent crustal material of asteroids.
To them, the old trees represent genetic material that might prove useful in some distant decade and therefore demands safekeeping.