Personal project.
Below are source links for the information:
http://www.theatlantic.com/magazine/archive/2013/11/innovations-list/309536/4/ / http://theinstitute.ieee.org/technology-focus/technology-history/a-history-of-the-magnetic-compass | http://education-portal.com/academy/lesson/clocks-history-of-chronometers-and-mechanical-clocks.html#lesson | http://en.wikipedia.org/wiki/Sextant | http://www.universetoday.com/82402/who-discovered-electricity/
More interesting infographics to come. Thanks for watching!
