How do you know where up and down is?

Answer 1

We perceive up and down through a combination of sensory inputs and gravitational cues. Our vestibular system, located in the inner ear, detects changes in head position and motion, helping us maintain balance and orientation. Additionally, visual references, such as the horizon and the arrangement of objects in our environment, provide context for determining direction. Together, these systems enable us to navigate and understand our spatial orientation in relation to gravity.