Just because it's holy water, it doesn't mean that it's also sterile water! To guard against swine flu, Italian inventor Luciano Marabrese invented the automatic holy water dispenser:
The terracotta dispenser, used in the northern town of Fornaci di Briosco, functions like an automatic soap dispenser in public washrooms — a churchgoer waves his or her hand under a sensor and the machine spurts out holy water.
"It has been a bit of a novelty. People initially were a bit shocked by this technological innovation but then they welcomed it with great enthusiasm and joy. The members of this parish have got used to it," said Father Pierangelo Motta.
Catholics entering and leaving churches usually dip their hands into fonts full of holy water — which has been blessed by a priest — and make the sign of the cross.
But fear of contracting the H1N1 virus has led many in Italy — where some 15 people have died of swine flu — not to dip their hands in the communal water font.
"It's great," said worshipper Marta Caimm as she entered the church. "Thanks to this we are not worried about catching swine flu. It is the right thing for the times," she said.
Link (Photo: Stefano Rellandini/REUTERS) | Video clip (embedded YouTube clip) at TYWKIWDBI
It wasn't DaVinci, it's was by a Greek dude named Heron, and is known as the worlds first vending machine.
http://en.wikipedia.org/wiki/Hero_of_Alexandria#Inventions_and_achievements