Thank you very much for this presentation, I like was exciting to see the result and it was really there, you battery powered the pump and we saw the water coming through. Just observing how you created your battery and was connecting the wires together and with all that electronic stuff, I just had to think about the movies where human is somehow appear in the abandoned area and would try to make his living better just using anything he had around. I am really glad that such people like you exist, who use the knowledge and can created with own brain and hands such constructive solution that helps you in everyday. Wonderful skills!