This little tiny garden or ecosystem has been isolated for over 40 years and yet it has been able to grow and stay alive! It has only received water twice during this time!
Back in 1960, David Latimer created this ecosystem by plating a single seed with a wire into a pile of compost and giving it a pint of water. Twelve years later he decided to give it another pint of water and tightly sealed the carboy shut as an ‘experiment’.
Since light can go through the glass, this plant continues to photosynthesize and the water goes through a continuous water cycle which allows it to use the two pints of water over and over again.
And even more interesting: As leaves die, they fall of and rot at the bottom of this glass which allows them to produce carbon dioxide and by this mean it gives the ecosystem the nutrients it needs in order for more plants to grow!