*DR STEPHEN HAWKING 1942-2018*

FULLNESS OF TIME : Stephen W. Hawking, the Cambridge University physicist and best-selling author who roamed the cosmos from a wheelchair, pondering the -

Nature of gravity and the origin of the universe and becoming an emblem of human determination and curiosity, died Wednesday at his home in Cambridge, England. He was 76.

''Not since Albert Einstein has a scientist so captured the public imagination and endeared himself to tens of millions of people around the world,'' Michio Kaku, a professor of theoretical physics at the  City University of New York, said in an interview.

Dr. Hawking did that largely through his book. ''A Brief History of Time : From the Big Bang to Black Holes,'' published in 1988. It has sold  more than 10 million  copies and inspired a documentary film by Errol Morris.

His remarkable life inspired the 2014  film : ''The Theory of Everything.'' which was nominated for  several Academy Awards , and Eddie Redmayne, who played Dr. Hawking, won the Oscar for best actor.

Scientifically, Dr. Hawking will be remembered for the discovery so strange that it might be expressed in the form of a Zen Koan : When is a black hole not black?  When it explodes.

What is equally amazing is that he had a career at all.

As a graduate student in 1963, he learned that he had amyotrophic lateral sclerosis, a neuromuscular wasting disease also known as Lou Gehrig's disease. He was given only a few years to live.

The disease reduced his bodily control to the flexing of a finger and voluntary eye moments but left his mental faculties untouched.

He went to become his generation's leader in exploring gravity and the properties of black holes, the bottom less gravitational pits so deep and dense that not even light can escape them,

That work led to a turning point in modern physics, playing itself out in the closing months of 1973 on the walls of his brain when Dr. Hawking set out to apply quantum theory-

The weird laws that govern subatomic reality, to black holes.