Who discovered the uncertainty principle?

Werner Heisenberg
February 1927: Heisenberg’s Uncertainty Principle. In February 1927, the young Werner Heisenberg developed a key piece of quantum theory, the uncertainty principle, with profound implications. Werner Heisenberg was born in December 1901 in Germany, into an upper-middle-class academic family.

Where does the Heisenberg uncertainty principle come from?

Formulated by the German physicist and Nobel laureate Werner Heisenberg in 1927, the uncertainty principle states that we cannot know both the position and speed of a particle, such as a photon or electron, with perfect accuracy; the more we nail down the particle’s position, the less we know about its speed and vice …

Who discovered quantum world?

physicist Niels Bohr
The first person to put some useful labels on the quantum world was physicist Niels Bohr. In the early 1900s, scientists around the world were beginning to awaken to the strange and unexpected behavior of atomic and subatomic systems.

What did Schrodinger and Heisenberg discover?

In the 1920s, physicists were trying to apply Planck’s concept of energy quanta to the atom and its constituents. By the end of the decade Erwin Schrödinger and Werner Heisenberg had invented the new quantum theory of physics.

How can a cat be both dead and alive?

If an internal monitor (e.g. Geiger counter) detects radioactivity (i.e. a single atom decaying), the flask is shattered, releasing the poison, which kills the cat. The Copenhagen interpretation of quantum mechanics implies that, after a while, the cat is simultaneously alive and dead.

When did Schrodinger and Heisenberg contribute to atomic theory?

1920s
In the 1920s, physicists were trying to apply Planck’s concept of energy quanta to the atom and its constituents. By the end of the decade Erwin Schrödinger and Werner Heisenberg had invented the new quantum theory of physics.

What’s the story of Schrödinger’s cat?

In simple terms, Schrödinger stated that if you place a cat and something that could kill the cat (a radioactive atom) in a box and sealed it, you would not know if the cat was dead or alive until you opened the box, so that until the box was opened, the cat was (in a sense) both “dead and alive”.