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Leonardo da Vinci's notebook: study for an underwater breathing apparatus.
Leonardo comes up with a solution that consists of two tubes, one for inhaling and the other for exhaling.
Leonardo comes up with a solution that consists of two tubes, one for inhaling and the other for exhaling.
In order to protect the upper parts of the tubes from the waves, he devises a float, and then he explains that the tubes are built in such a way that they do not break.
The strategy Leonardo adopts is to make the tubes flexible by articulating them at intervals, and by having wires in these articulations.
Then, Leonardo advises that a sack should be placed below the chin of the apparatus to collect waste; the sack could be emptied without compromising the functioning of the apparatus.
Particularly significant here is the way Leonardo details the structure of his apparatus by making use of 'transparent' and 'exploded' views, which are graphic techniques that he explored extensively in his studies of human anatomy.
Source/more: bl.uk/collection-ite…
