If you have heard of echolocation and would like to start understanding it better and using it in your daily life, this is the place to start.
Lesson #1: Experience Echolocation for the First Time in a Car
Lesson #2: Knowing What to Listen For
Lesson #3: Tune Your Senses for Echolocation, Exercise 1
Lesson #4: Tune Your Senses for Echolocation, Exercise 2
Lesson #5: Realizing the Reality of Echolocation
Lesson #6: Stationary vs. Mobile Echolocation
Lesson #7: How to Detect an Object for the First Time
Lesson #8: How to See Objects to the Right and Left
Lesson #9: How to See Objects Above and Below