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Alfred Wegener
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What is the fundamental assumption behind quantum mechanics Who first proposed it?
The fundamental assumption behind quantum mechanics is that particles and systems can exist in multiple states or positions simultaneously, until they are observed or measured. This is known as superposition. The theory was first proposed by Max Planck in 1900, and later developed by Albert Einstein, Niels Bohr, and others.
Who developed the model of the hydrogen atom?
In a sense Niels Bohr did by introducing different orbits in which electrons spin around the nucleus. Bohr argued that each electron has a certain fixed amount of energy, which corresponds to its fixed orbit. Therefore, when an electron absorbs energy, it jumps to the next higher orbit rather than moving continuously between orbits. The characteristic of electrons having fixed energy quantities (quanta) is also known as the quantum theory of the atom.
What has caused the theory of natural selection to change over time?
Better evidence, especially from genetics. When Charles Darwin first proposed the theory of evolution by natural selection his mechanism of heredity was dead wrong. He posited a blending type of heredity. When Gregor Mendel's work was rediscovered in about 1900 particulate inheritance was brought to the forefront of evolutionary thinking and the synthesis of the 1930's and '40's cooperated this thinking with Darwinian though to give us modern evolutionary theory.
Who found Pakistan Standard Time?
Sandford Fleming of Canada proposed a world-wide standard of time measurement in 1897, and by 1900 all countries adopted the system, which is used today.
Why was the theory of the atom so controversial back in the early 1900's?
Complicate and new theories are continuously controversial; but this controverse is the source of progress in knowledge.
When was the continental drift?
In the early 1900's by Alfred Wegener
When was the continental drift discoverd?
In the early 1900's by Alfred Wegener
What theory did Alfred wegener proposed first?
Alfred wegeners theory of continental driftIs that once all the continents were all join as one massive land mass. (and split apart.)
The scientist Wegener's time should have accepted his hypothesis?
Yes, because he is the only scientist that discovered the CONTINENTAL DRIFT and studied all about FEATURES,FOSSILS AND EVIDENCE OF CLIMATE CHANGE when 1900.
How did they think mountains were formed in the 1900's?
Alfred thought that mountain were formed by two continents smashing together with such force that the land was forced up.
What are 3 pieces of evidence for continental drift?
1. Fossils of the same stuff are found on continents with an ocean to separate them. 2. The continents fit together (back in like 1900 or something a kid looked at the coastlines of south america and africa and asked the teacher 'did they ever fit together.' The teacher called him a stupid idiot and failed him for geography. True story) 3. Continental drift or something... look it up in your textbook
What was proposed that would have a deflationary effect on the American economy in the 1890s?
The Gold Standard Act of 1900
What is the fundamental assumption behind quantum mechanics Who first proposed it?
The fundamental assumption behind quantum mechanics is that particles and systems can exist in multiple states or positions simultaneously, until they are observed or measured. This is known as superposition. The theory was first proposed by Max Planck in 1900, and later developed by Albert Einstein, Niels Bohr, and others.
Who first proposed the idea that the continents are moving along the earth's surface?
The idea of that the continents were shifting was first observed by Abraham Ortelius in 1596 and further examined in the early 1900's and in the 1960's when the theory of plate tectonics were developed, scientists were able to understand it more clearly.
What year did the electron cloud theory become discovered?
After Bohr's discovery. In the 1900's.
Who came up with the heliocentric theory?
jamie oliver born in 1900 died in 1953
Who developed the model of the hydrogen atom?
In a sense Niels Bohr did by introducing different orbits in which electrons spin around the nucleus. Bohr argued that each electron has a certain fixed amount of energy, which corresponds to its fixed orbit. Therefore, when an electron absorbs energy, it jumps to the next higher orbit rather than moving continuously between orbits. The characteristic of electrons having fixed energy quantities (quanta) is also known as the quantum theory of the atom.
