My first visit to a 4D cinema

I went for a 4d Cinema in Sentosa an island in singapore. When we entered the cinema hall, nothing was special, u had a huge screen with seats for the viewers.They gave a specially designed glass to wear. I thought it could be a normal 3d cinema and it was; i could see all things close and real. Suddenly my chair was rocking I thought somebody behind me is pushing the chair in excitement, it happened the second time, I even thought of complaining my husband, that the person behind is disturbing, only when i looked at him, I found there was a thud even in his chair, actually it is the 4D effect . There was a heavy blow of wind , sounds of insects heard in my ears, water sprinkled on my face, eveything in sync with the movie.When I came out of the theater I had the real feel of the movie as if i was a part of it. It was an exciting experience.

How was all these effects possible????? there were small speakers attached to each seat to produce the sound close to the ear.A small provision in the front seat, for water to sprinkle. A leaver connecting all chairs that moves to and fro to produce the rocking effect.

My God, human brain is extra-ordinary!!!!!!