This is an academic paper about the physiology of walking. It explains how we walk, and also goes into some detail on why walking is not perfect. I will use this to help me define walking, and how it is, in itself, a very complicated and flaws process.
This explains how animals navigate and find their way during migration. The article states that many animals use the same techniques for navigation as humans do. For example, a visual landmark. It also talks about an experiment where sea turtles were “blinded” from sensing a magnetic force that they used as a landmark and ended up getting lost. I will use this to make a comparative argument between our navigation and animals navigation.
This article describes all of the different ways that ancient sailors used to navigate on the open seas. Just like how it is impossible to walk in a straight line while blindfolded, it is impossible to sail straight without the help of navigation. I will compare the methods used to navigate on the open sea to those used while on land.
I will use this to help me define what exactly a straight line is, and what definition goes along with my topic.