standard steam locomotives

Balsa wood can be a lightweight wood variety taken from trees of the name that hail from your rainforests of Central America, South America, plus some other regions. The warm and humid conditions in these areas are fantastic for the development of this plant. Balsa trees grow very rapidly - it usually takes only a decade for any tree being mature enough for cutting. However, once past the ten-year marker, an unharvested tree would harden on the exterior and rot inside, making this a useless piece. Most people have either watched or been aware of the movie Wall-e. It was a a cute film, set way into the future, concerning the adventures of the little robot that has been left behind in the world to up the mess put aside by humans. The humans are living in space when they wait for the earth being re-habitable to allow them to all return. Wall-e meets another robot called EVE, who may have been shipped to earth to hunt out any indications of new life (growing plants), falls in love and follows her into space where they're involved with a lot of antics before Wall-e eventually returns to earth with EVE, the humans follow and they also set about so that it is a great location to live again.