Einstein's world

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Albert Einstein at first glance appears to be one of those Great Figures of History that one would like to meet once, but not get to know all that well. Walter Isaacson changes that with "Einstein: His Life and Universe," an entertaining description of a complex man who could keep as life-long loyalists even the people he betrayed.

Readers may be daunted by the notion that to plumb Einstein's personality one has to master his epochal theoretical breakthroughs in physics. This book shows us the reverse is true, that Einstein's visionary discoveries could only have been achieved by a rebellious dreamer who saw the pictures of his theories long before he came up with the mathematical explanations. First that man, then the challenges.

Mr. Isaacson allows himself the dangerous (for a serious biographer) luxury of liking Einstein while not being blinded by his many flaws. He kept many friends from early childhood all his life. Even scientific critics kept a grudging pocket of affection for this quarrelsome, rude man whose battle cry was "Long live impudence! It is my guardian angel in this world."

Fortunately, Mr. Isaacson's story is light on mathematics; there are only two equations in the book -- the instantly recognized but rarely understood E = mc2 theory of relativity, and the field equation of gravitation, hard to reproduce because of the Greek symbols it contains. Yet the reader easily sees how these theories changed the relatively new science of physics and yanked it, in a few short years, out of the dusty towers of the academy and into the far corners of outer space.

As Mr. Isaacson describes Einstein's tale, "[it] encompasses the vast sweep of modern science from the infinitesimal to the infinite, from the emission of photons to the expansion of the cosmos. A century after his great triumphs, we are still living in Einstein's universe, one defined on the macro scale by his theory of relativity and on the micro scale by a quantum mechanics that has proven durable even as it remains disconcerting.

"His fingerprints are all over today's technologies. Photoelectric cells and lasers, nuclear power and fiber optics, space travel and even semiconductors all trace back to his theories. He signed the letter to Franklin Roosevelt warning that it may be possible to build an atom bomb, and the letters of his famed equation relating energy to mass hover in our minds when we picture the resulting mushroom cloud."

This book is narrative nonfiction at its best, and that is all the more remarkable since it is only the fourth book by Mr. Isaacson in the 20 years since he and Evan Thomas co-authored "The Wise Men: Six Men and the World They Made." He followed on his own with "Kissinger: A Biography" in 1992 and "Benjamin Franklin: An American Life" in 2003, now the standard cradle-to-the-grave history of that fascinating polymath.

Einstein is all the more remarkable since narrative nonfiction is only part of the author's life, a writing career that has seen him become the 14th editor of Time magazine in 1996 and CEO of the CNN network in 2001. Since then he has eased off a bit, serving as CEO of the Aspen Institute here in Washington and vice chairman of the Louisiana Recovery Authority to aid his hometown of New Orleans.

What the book also does is move the author up from the ranks of skilled narrator of history -- one who seeks the story behind historical facts -- and into the top tier of the craft to join the likes of David McCulloch and Doris Kerns Goodwin.

Einstein helped Mr. Isaacson considerably by generating and holding on to an archive of personal correspondence -- much of which is disclosed here for the first time. This trove of personal comment and conversation with lovers, scientific friends and family adds the context that makes the man's more public writings accessible.