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Stephen Hawking, a wheelchair-bound celebrity cosmologist who has near superstar status in China, attends a conference on string theory held in Beijing, China, Wednesday, June 21, 2006.

v Global Scientists Discuss String Theory in Beijing
About 600 international scientists gathered in Beijing Monday to discuss "string theory", with which they hope to explain every physical phenomenon in the world.

v Stephen Hawking Floats His Genesis Bubble in Beijing

Is the universe eternal, or did it have a beginning? World-renowned physicist Stephen Hawking gave his answer to a large audience in Beijing on Monday.

v Hawking to Discuss Origin of Universe in Beijing
Theoretical physicist Stephen Hawking has arrived in Beijing in advance of his lecture at the Great Hall of the People on Monday morning.

What Is String Theory
We live in a wonderfully complex universe, and we are curious about it by nature. Time and again we have wondered--- why are we here? Where did we and the world come from? What is the world made of? It is our privilege to live in a time when enormous progress has been made towards finding some of the answers. String theory is our most recent attempt to answer the last (and part of the second) question.

String Theory

More about String Theory

If you want to learn more, visit the sites listed below. I also highly recommend the popular science book "The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for The Ultimate Theory" (W. W. Norton & Company, 1999), written by Prof. Brian Greene, a well-established string theorist.

The Second Superstring Revolution:

String Reviews:

Strings '00 Pictures:

Einstein's Unfinished Symphony:

Black Holes, Strings and Quantum Gravity:

Superstrings! Home Page:

The Science of Matter, Space and Time:

Particle Adventure:

The Elegant Universe:

Table of Contents From Website tena4.vub.ac.be

v I. Introduction
How to communicate string theory ?

v II. The Standard Model
The theory of the elementary particles of nature, according to the Standard Model.

v III. General Relativity
Space and time join and become curved in Einstein's geometrical theory of the gravitational force.

v IV. String Theory
The basic principles of string theory.

v V. Extra Dimensions
Do we live in three, four or more dimensions?

v VI. Duality
The equivalence of theories and what we learn from the relations between them.

v VII. Branes
Extended objects other than strings.

v VIII. Black Holes
Are black holes really black ?

v IX. M-Theory
Beyond string theory. All string theories fit in one framework, but which ?

Theories

• Relativity Tutorial
Relativity can be described using space-time diagrams. Contrary to popular opinion, Einstein did not invent relativity. Galileo preceded him. Aristotle had proposed that moving objects (on the Earth) had a natural tendency to slow down and stop. This is shown in the space-time diagram below.

• General Relativity
General relativity is a theory of gravitation and to understand the background to the theory we have to look at how theories of gravitation developed.

• Quantum Cosmology
In quantum physics, specifying the initial state of a system allows one to calculate the probability that it will be found in any other state at a later time.

• M-theory, the Theory Formerly Known as Strings
In the standard model of particle physics, particles are considered to be points moving through space, tracing out a line called the World Line.

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