1120

Diving apparatus and Skating.

Just as on a frozen river a man may run without moving his feet, so a car might be made that would slide by itself.

[Footnote: The drawings of carts by the side of this text have no direct connection with the problem as stated in words.—Compare No. 1448, l. 17.]

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

The ship’s logs of Vitruvius, of Alberti and of Leonardo.

Methods of staying and moving in water.

On naval warfare.

1115,

The use of swimming belts.

On the gravity of water.

Diving apparatus and Skating.

1119,

1120,

On Flying machines.

1122,

1123,

1124,

1125,

Of mining.

Of Greek fire.

Of Music.

1129,

Of decorations.

. . .