As inhabitants of Earth, we do not typically feel the Earth's movement because our senses have adapted to the planet's rotation and orbit over millions of years. The Earth's rotational and orbital speeds are relatively constant and gradual, resulting in a lack of perceptible sensation.
The Earth rotates on its axis once every 24 hours, which gives us the familiar cycle of day and night. This rotation is smooth and consistent, so we do not experience any noticeable sensation of movement. Similarly, as the Earth orbits around the Sun, completing one orbit in approximately 365.25 days, the motion is relatively slow and continuous. This gradual movement doesn't produce any tangible perception of motion either.
Additionally, our bodies have evolved to function within the Earth's gravitational field. Gravity is a fundamental force that pulls all objects toward the center of mass of a celestial body. On Earth, gravity keeps us firmly grounded and gives us a sense of stability, further masking the perception of our planet's movement.
It's worth noting that some individuals may feel a minimal sense of motion due to factors such as acceleration in vehicles or during specific geological events like earthquakes. However, these are relatively localized and short-lived experiences that do not reflect the constant motion of the Earth.