1939
Erwin Schrödinger developed the Schrödinger equation, which describes the behavior of quantum systems, including atoms. Werner Heisenberg formulated the uncertainty principle, which states that we cannot simultaneously know both the position and momentum of a particle with absolute certainty. Both of these contributions were crucial in the development of modern atomic theory.
There was very little choice in the, there was a very serious fear that Nazi Germany was already well along in this work. If Hitler got an atomic bomb he could likely win the war in europe very easily. It was necessary first to determine the difficulties and second if those difficulties could be surmounted to try to make atomic bombs before Germany could (if possible). It was unknown that the German project had faltered and when Werner Heisenberg (the project's director) tried to pass this information on to Niels Bohr in occupied Copenhagen Bohr misinterpreted the report as either disinformation or a veiled threat of the German's progress toward the atomic bomb. When Niels Bohr escaped to England his report of Werner Heisenberg's comments only increased the concern about a possible Nazi atomic bomb being eminent.
that atoms can be broken
Democritus is known for his atomic theory, which he developed in the 5th century BC. His ideas were revolutionary for the time and laid the groundwork for modern atomic theory.
Nobody outside the handful of physics professors at universities, and theoretical physicists on campuses and in laboratories, had any idea that any such thing as an atomic bomb might be possible. When told, it sounded like science fiction. Albert Einstein received a visit from two other physicists while at his vacation home on Long Island in the early days of the war. These men knew that one of the leading physicists in the field was a German, Werner Heisenberg. Heisenberg had published scholarly articles in the 30s, one implication of which was that a nuclear bomb might be possible. In their discussion these three realized that it was quite likely the Germans had Heisenberg at work trying to make such a bomb. So they jointly wrote a letter to President Roosevelt, trying to alert him to the danger. The visitors had come to Einstein to get him to sign such a letter, because he had some name recognition, and they did not, outside of universities. It was this letter that gave birth to the US bomb program, the Manhattan Project. But most people, and I mean the overwhelming majority, still did not know what an atomic bomb was even after they heard we had dropped some on Japan.
Yes, not getting enough oxygen can and will make you drowsy, also, not getting enough oxygen can cause brain damage. - Heisenberg
What discovery? Put in the title what is the importance of blah blah's discovery? Make a new question that someone can freaking answer!!
James Chadwick's key contribution to atomic theory was the discovery of the neutron in 1932. This finding helped to revise the understanding of the atomic nucleus, demonstrating that it consists of protons and neutrons. Chadwick's work was crucial in advancing the field of nuclear physics and shaping the modern understanding of atomic structure.
skunkweed
2013
No. Time machines most definitely do not work. See the Heisenberg Uncertainty Principle and the Grandfather Paradox.
john Dalton invented the atomic theory. John Dalton introduced the basic concepts on which the modern periodic table is based.