1. How Scientists Use Notebooks Do you recognize these names? Leonardo da Vinci Benjamin Franklin Lewis & Clark Thomas Edison Galileo Galilei

2. How Scientists Use Notebooks Leonardo da Vinci’s notes & sketches This manuscript is on paper bound in morocco leather, containing 238 pages of various sizes that had been cut and removed from other manuscripts. The collection deals with a variety of different subjects including studies in geometry, weights and architecture. Most of the pages can be dated to between 1480 and 1518.

3. How Scientists Use Notebooks Leonardo da Vinci’s notes & sketches 'On the Flight of Birds' This collection includes 17 pages (measuring 21 x 15 cm) out of the original 18. It deals primarily with the flight of birds, which Leonardo analyzed with a very rigorous approach, paying particular attention to the mechanics of flight, as well as to air resistance, winds and currents. The pages can be dated to approximately 1505.

4. How Scientists Use Notebooks Benjamin Franklin’s three wheel clock sketches Franklin invented a 24-hour, three-wheel clock that was much simpler than most clock designs of the time. Franklin's clock, like others from that period, only had one hand. Minute hands were not added to clocks until later. Franklin biographer Carl Van Doren describes this invention as "a curious clock, economical but not quite practical." In 1758, Franklin's friend, James Ferguson, improved the clock, much to Franklin's pleasure.

5. How Scientists Use Notebooks Lewis & Clark’s data, and sketches

6. Thomas Edison

7. How Scientists Use Notebooks Galileo’s Phases of the Moon Galileo Galilei's "The Phases of the Moon" Image courtesy of Biblioteca Nazionale - Florence, Italy Found at: http://www.windows.ucar.edu/tou r/link=/moon/images/galmoon.ht ml&edu=mid&back=/sear http://www.windows.ucar.edu/tou r/link=/moon/images/galmoon.ht ml&edu=mid&back=/sear