Quotes About Theory

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.

His new idea was published that month in what became yet another seminal Einstein paper, "Cosmological Considerations in the General Theory of Relativity." On the surface, it did indeed seem to be based on a crazy notion: space has no borders because gravity bends it back on itself.

Simplicity and unity, he intuitively believed, were hallmarks of the Old One's handiwork. A theory is more impressive the greater the simplicity of its premises, the more different things it relates, and the more expanded its area of applicability, he wrote.

The conception of the ether has again acquired an intelligible content, although this content differs widely from that of the ether of the mechanical wave theory of light… According to the general theory of relativity, space is endowed with physical qualities; in this sense, there exists an ether.

As the evening droned on, Einstein turned to a Dutch diplomat seated next to him and said, "I've just developed a new theory of eternity.

Einstein's theory produced a law of the photoelectric effect that was experimentally testable: the energy of emitted electrons would depend on the frequency of the light according to a simple mathematical formula involving Planck's constant.

Until then, electricity had been thought to involve two types of fluids, called vitreous and resinous, that could be created independently. Franklin's discovery that the generation of a positive charge was accompanied by the generation of an equal negative charge became known as the conservation of charge and the single-fluid theory of electricity.

His head-snapping insight was that gravity could be defined as the curvature of spacetime, and thus it could be represented by a metric tensor.

While others continued to develop quantum mechanics, undaunted by the uncertainties at its core, Einstein persevered in his lonelier quest for a more complete explanation of the universe—a unified field theory that would tie together electricity and magnetism and gravity and quantum mechanics.

With his special theory of relativity, Einstein had shown that space and time did not have independent existences, but instead formed a fabric of spacetime.

A decade after that, in 1915, he wrested from nature his crowning glory, one of the most beautiful theories in all of science, the general theory of relativity.

El de relatividad es un concepto sencillo. Afirma que las leyes fundamentales de la física son las mismas cualquiera que sea nuestro estado de movimiento.

His theory indicated that the universe would have to be either expanding or contracting, not staying static. According to his field equations, a static universe was impossible because the gravitational forces would pull all the matter together.

The special theory of relativity that Einstein developed in 1905 applies only to this special case (hence the name): a situation in which the observers are moving at a constant velocity relative to one another—uniformly in a straight line at a steady speed—referred to as an "inertial reference system.

According to that theory, clocks in stronger gravitational fields run more slowly than those in weaker gravity.

The central idea of general relativity is that gravity arises from the curvature of spacetime

In a paper he wrote in the spring of 1907, he began by exuding a joyful self-assurance about having neither the library nor the inclination to know what other theorists had written on the topic. "Other authors might have already clarified part of what I am going to say," he wrote. "I felt I could dispense with doing a literature search (which would have been very troublesome for me), especially since there is good reason to hope that others will fill this gap.

epistemological

And one day it hit me—the perfection imagined by socialist theory was impossible for human beings to attain. The philosophy was right but we were poor vessels for it.

Come on," said the Director. "You are all completely mad people who mess around with technology and weird social theory for fun until your brains shit themselves and you fall over. Any of you could have done this.

It is intuitively true, to all who have eyes to see, that Jesus Christ is the Son of God, and that his gospel is the wisdom of God and the power of God unto salvation, and that it is absolutely impossible that any theory which is opposed to these divine intuitions can be true.

In principle, there might be

My theory is to enjoy life, but the practice is against it.

Having a large audience does not, of course, prove that something is necessarily good, and I subscribe to the theory that only a creation that speaks to succeeding generations can truly be labeled art.