8. (Mathematics) maths. a. an expression that can be assigned any of a set of values. b. a symbol, esp x, y, or z, representing an unspecified member of a class of objects, numbers, etc. See also dependent variable, independent variable.
James Cameron was born on August 16, 1954, in Kapuskasing, Ontario, Canada. A science-fiction fan as a child, he grew up to become one of the most visionary filmmakers in Hollywood.
Media caption James Cameron: It's a heck of a ride, you're just screaming down and screaming back up. Hollywood director James Cameron has returned to the surface after plunging nearly 11km (seven miles) down to the deepest place in the ocean, the Mariana Trench in the western Pacific. He made the solo descent in a submarine called Deepsea Challenger, taking over two hours to reach the bottom. He spent more than four hours exploring the ocean floor, before a speedy ascent back to the surface. His craft was kitted out with cameras so he could film the deep in 3D.