Britannica Educational Publishing 
100 Most Influential Scientists of All Time [PDF ebook] 

Leonardo da Vinci’s study of mechanics led to the creation of early prototypes of flying machines and submarines. Biologist Carolus Linnaeus pioneered the hierarchal system of taxonomic classification in use today, Barbara Mc Clintock’s genetics research garnered her the Nobel Prize in Medicine. The detailed profiles of these and many other notable scientists collected in these pages are bound to fascinate and inspire readers.