Like any organ in the body, the brain is composed of cells. But the brainâs. cells, termed nerve cells or neurons are geometrically unlike any other cells in. the body and are specially designed to send electrical signals over long distances.
For the best answers, search on this site https://shorturl.im/awFwv. It was filmed using a large Tank that held about 5,000,000 gallons of water. A pretty far cry from a kiddy wading pool. The Fox Studios in Baja Mexico is where the production took place. Massive physical sets were also created that they sunk in the tank using hydraulics to crate the flooding sequences.
It is understood that in the making of the last few scenes a few extras were injured during the plunge. Computer generated special effects were used throughout to sharpen the film's appeal. The scene at the dock where onlookers wave the Titanic goodbye was completely shot using computers.