Books of Interest
Website: chetyarbrough.blog
The Perfect Theory (A Century of Geniuses and the Battle over General Relativity)
Author: Pedro G. Ferreira
Narrated By: Sean Runnette
Pedro Ferreira (Anglo-Portuguese cosmologist, professor at the University of Oxford with expertise as theoretical cosmologist and astrophysicist.)
“The Perfect Theory” is a history of physics that revolves around Albert Einstein’s brilliant discoveries in the early 20th century. Einstein believed in general relativity that included gravity and acceleration which he argued is caused by the curvature of spacetime. Einstein implies the equality of mass and energy is a precursor to the proof of general relativity. Ferreira argues that post twentieth century physics’ theories have only contrasted and expanded Einstein’s first discovery of the equivalence of energy and mass, which is a part of a “…Perfect Theory”. Einstein’s theory seems perfect in the sense that it is a foundational theory from which most discoveries about physics have been based. This seems hyperbolic with the experimental proof of Quantum Dynamics (a science theory describing the behavior of particles at atomic and subatomic scales), but the idea of a Quantum world seems only a tentative expansion, rather than refutation of Einstein’s “…Perfect Theory”.
What Ferreira shows is how Einstein‘s general theory of relativity shaped modern theories of cosmology.
Though Einstein believed the universe was an eternal existence, that never expanded or contracted, he had to create a cosmological constant to make that theory work. He began moving away from that belief in the 1930s. Edwin Hubble’s theory of an expanding universe led to the “Big Bang Theory” that turned what Einstein suggested was a vindication of his discomfort with the idea of arbitrarily devising a cosmological constant to make his vision of the universe work. (Interestingly, Einstein remained skeptical of the Big Bang model of the universe’s creation when its expansion was proven.) Edwin Hubble proved through observation and calculation that the universe was expanding rather than static. Later science discovery of “dark energy” is thought to be the engine for expansion which ironically revives the theory of Einstein’s cosmological constant.
Edwin Hubble (1889-1953, American astronomer.)
John Wheeler and Roger Penrose in the 1960s confirmed the existence of black holes based on Einstein’s concept of regions of the universe that would have such strong gravity pull that nothing could escape its attractive force. The belief that nothing could escape was challenged by Stephen Hawking who argued that black holes emit radiation and eventually evaporate. Nevertheless, it is Einstein’s early work that initiated further investigation and theory modification.
Einstein predicted gravitational waves that were not confirmed until 2015 by LIGO’s (Laser Interferometer Gravitational-Wave Observatory) detection. Einstein had predicted gravitational wave existence in 1916 but was uncertain whether they were physically real or just mathematical affects based on his thought experiments about massive accelerating objects, like orbiting planets.
LIGO (Located @ Hanford in the Tri-Cities of Richland, Kennewick, and Pasco in Washington State.)
Ferreira’s book explains how important Einstein’s legacy is in today’s understanding of the Universe, its creation, and possible future.
The most significant curve ball thrown at Einstein’s “…Perfect Theory” of the universe is Quantum Mechanics. Though he grudgingly acknowledged the experimental proof of Quantum Entanglement, he remained skeptical of quantum mechanics and its philosophical implications. The proven predictions of quantum mechanics shake the foundation of what Einstein believed about the universe. Quantum mechanics suggests the universe’s existence, whether it began with a Big Bang or not, is a matter of probability, not predictable certainty. Einstein’s theories were based on a belief in a clockwork universe–where cause and effect would explain everything about the physics of existence.
Though Einstein did not believe in a personal God, he believed in order, harmony, and rationality in a world that has a cause for every effect.
Twenty first century physics’ research owes more to Einstein than any other scientist in history. It is not that Einstein was or is infallible, but his theories are the foundation of physics research. His idea of a static universe may have been wrong, but the story of dark energy makes one wonder if his cosmological constant might have been right. Einstein was skeptical of the Big Bang theory as the origin of the universe despite it being the belief of most scientists today. Though he resisted quantum mechanics unpredictability, he acknowledged its experimental proofs with the caveat that there is an undiscovered law that will return predictability to the physics’ world. What Pedro Ferreira credibly argues is that Albert Einstein provided “The Perfect Theory” to explore truth and falsehood of the physics of the universe.
Without a doubt, Einstein was the premier scientist of the 20th century just as Newton was of the 17th. Though their characters were quite different, their thoughts and contributions to the physics of life on earth and in the universe remain world changing.
REVIEWS AND VIEWS OF LIFE 