Inertia
Albert Einstein's theory of special relativity, as proposed in his 1905 paper entitled "On the Electrodynamics of Moving Bodies" was built on the understanding of inertia and inertial reference frames developed by Galileo and Newton. While this revolutionary theory did significantly change the meaning of many Newtonian concepts such as mass, energy, and distance, Einstein's concept of inertia remained unchanged from Newton's original meaning (in fact, the entire theory was based on Newton's definition of inertia). However, this resulted in a limitation inherent in special relativity: the principle of relativity could only apply to reference frames that were "inertial" in nature (meaning when no acceleration was present). In an attempt to address this limitation, Einstein proceeded to develop his general theory of relativity ("The Foundation of the General Theory of Relativity," 1916), which ultimately provided a unified theory for both "inertial" and "noninertial" (accelerated) reference frames. However, in order to accomplish this, in general relativity, Einstein found it necessary to redefine several fundamental concepts (such as gravity) in terms of a new concept of "curvature" of space-time, instead of the more traditional system of forces understood by Newton.
Ricardo Carezani
However, after the setbacks in the 1980s, Carezani regained some prominence in the 1990s and 2000s. In 1991, he discovered a mathematical conversion theorizing that special relativity is a subset of autodynamics. Despite a heart transplant in 1992 stopping any research for the next year, Carezani regained momentum and founded the Society of the Advancement of Autodynamics, a California-Based organization now run by David De Hilster. In 1996, Carezani was presented the "Lifetime Achievement Award" in relative physics, and he published his first book one year later.