'Atom : The Illusion Of Reality' is a BBC Documentary on the nature of reality, the emptiness of an atom and all matter, parallel universes where different versions of us exist and the seemingly emptiness of space which really isn't empty at all.
The idea that we never experience the physical world directly has intrigued many philosophers. Most notable was the eighteenth-century German philosopher Immanual Kant, who drew a clear distinction between the forms that appear in the mind–what he called the phenomenon (a Greek word meaning "that which appears to be")–and the world that gives rise to this perception, which he called the noumenon (meaning "that which is apprehended"). All we know, Kant insisted, is the phenomenon. The noumenon, the "thing-in-itself," remains forever beyond our knowing.
Similar activities take place with the other senses. A vibrating violin string creates pressure waves in the air. These waves stimulate minute hairs in the inner ear, which send electrical impulses on to the brain. As with vision, the raw data are then analyzed and integrated, culminating in the experience of hearing music.
