article_snippet.sent: And the results are surprisingly efficient.
article_snippet.sent: And although it was a bit crude, the concept is actually correct.
article_snippet.sent: The apparatus required is also relatively simple - cables, some water and a plant.
article_snippet.sent: The uses are not just in the home, though. 
article_snippet.sent: To assemble one is not too difficult,’ Dr Paolo Bombelli explained.