Was Einstein right?

Albert Einstein's relativity has changed forever the way we think about space, time and the universe. In two papers published in 1905, he proposed a new way of looking at motion, mass and energy, and in 1915 he postulated a new conception of gravity. His 1905 papers on special relativity were just a part of his remarkable "miracle year," whose 100th anniversary physicists worldwide are celebrating with the World Year of Physics.
Some scholars have even suggested that Einstein's relativity affected such fields as art, poetry, philosophy and history. In a 1983 book on the history of the 20th…