Leonardo da Vinci: Pathfinder of Science (Immortals of Science) by Henry S. Gillette (Purple House Press) Homes and Haunts The Broom of the System

The Broom of the System

author of The Nordic Knitting Primer

David Bromwich has been thinking about him for more than a quarter of a century

* Garden tools and time-saving rules

This field guide is essential for anyone wanting to incorporate more natural and whole foods into their diet

Leonardo da Vinci: Pathfinder of Science (Immortals of Science) by Henry S. Gillette (Purple House Press) Homes and Haunts The Broom of the SystemThis biography is the story of Leonardo da Vinci as a scientist, for his extraordinary vision concerning scientific ideas created an impact that is felt in the world today. Many of Leonardo's ideas were in advance of his own time; they include a flying machine, a tank, a rapid firing gun, and a parabolic compass. Leonardo's invention of an irrigation system can be said to be the start of the study of hydraulics, and his ideas concerning optics,