# General relativity and quantum mechanics

## General Relativity Quotes (12 quotes)

## Brian Greene and Alan Alda Discuss Why Einstein Hated Quantum Mechanics

## A step closer to a theory of quantum gravity

Despite our successes at describing the inner workings of the universe Higgs, anyone? Why should we want to unify them anyway? In this week's " Ask a Physicist, " we'll find out. Virtually everything we know about the laws of physics falls into one of two piles. In one, there's quantum mechanics, from which we've developed the " Standard Model, " including all of the fundamental particles we've yet detected, and three of the four interactions: electromagnetism, and the weak and strong nuclear forces. In the other pile, there's Einstein's theory of General Relativity, which describes the fourth force, gravity, and gives us black holes , the expansion of the universe , and the potential for time travel.

September 19, Quantum mechanics and the general theory of relativity form the bedrock of the current understanding of physics—yet the two theories don't seem to work together. Physical phenomena rely on relationship of motion between the observed and the observer.

read sweet possession online free j daniels

## Quantum Mechanics vs. General Relativity

I t is the biggest of problems, it is the smallest of problems. At present physicists have two separate rulebooks explaining how nature works. There is general relativity , which beautifully accounts for gravity and all of the things it dominates: orbiting planets, colliding galaxies, the dynamics of the expanding universe as a whole. Then there is quantum mechanics , which handles the other three forces — electromagnetism and the two nuclear forces. Quantum theory is extremely adept at describing what happens when a uranium atom decays, or when individual particles of light hit a solar cell.

This website uses cookies for user login, personalised content and statistics. By continuing to browse the site, you are agreeing to our use of cookies - if you wish to opt-out of non-essential cookies, you may do so below. The insights could help build a successful theory of quantum gravity, something that has so far eluded physicists. Quantum physics has very successfully described the behaviour of tiny particles such as atoms and electrons, while relativity is very accurate for forces at cosmic scales. However, in some cases, notably gravity, the two theories produce incompatible results.

More often than not, the questions that come up during the course of the day are ones we can all answer pretty confidently. Have you eaten lunch? Did you hear Taylor Swift's new song? Is it a confessional about a boy she dated once? But when we begin to ponder the big questions -- the one we tackle today asks if quantum mechanics and general relativity can ever be reconciled -- our self-assurance plummets. Doesn't quantum mechanics have something to do with planets?

## 3 thoughts on “General Relativity Quotes (12 quotes)”

Navigation menu

Bridge between quantum mechanics and general relativity still possible

Quantum foam is the term used by physicists to describe the violent activity of the quantum world.