Philosophy
Abstract:
Modern atomic and nuclear physics took its start in the early part of the twentieth century, to a large extent based upon experimental investigations of radioactive phenomena. Foremost among the pioneers of the new kind of physics was Ernest Rutherford, who made fundamental contributions to the structure of matter for more than three decades and, in addition, founded important research schools in Manchester and Cambridge. This paper reviews the most important aspects of Rutherford’s scientific work in the period from about 1900 to 1920, and it also refers to some of his last experiments of the 1930s. The emphasis is on his theory of radioactive disintegration (1902), the discovery of the atomic nucleus (1911), and the first artificially produced element transformation (1919). Following the transmutation experiments, Rutherford developed elaborate models of the atomic nucleus, but these turned out to be unsuccessful. Other subjects could be included, but the three mentioned are undoubtedly those of the greatest importance, the nuclear atom perhaps the greatest and the one with the most far-reaching consequences.
"Rutherford, Radioactivity, and the Atomic Nucleus" by Helge Kragh
- In Praise Of Ernest Marsden
Tomorrow would be the 122nd anniversary of the birth of Ernest Marsden, the man who discovered the nucleus for the man who discovered the nucleus. As an undergraduate at the University of Manchester studying physics, Marsden became a laboratory assistant...
- The Bohr Model Of The Atom...spread The Word
Summary: The emergence of quantum theory in the early decades of the twentieth century was accompanied by a wide range of popular science books, all of which presented in words and in images new scientific ideas about the structure of the atom. The work...
- Canadian Physicist...harriet Brooks
Harriet Brooks July 2nd 1876 to April 17th, 1933 Canadian nuclear physicist who was probably the first to observe the recoil of the atomic nucleus as nuclear particles were emitted during radioactive decay. During the years 1901-05, she contributed much...
- Periodic Table...#112 Is Official
Gesellschaft fur Schwerionenforschung (GSI) in Darmstadt, Germany is the hot bed for discovering and confirming new elements. On November 9th, 1994 the first atom with atomic number 110 was discovered...later confirmed and named in 2003 as Darmstatdium;...
- Physicists--recorded Moments
It is a pity that audio and visual recordings weren't possible throughout man's history. But here are four items... Ernest Rutherford "The bother is that a nucleus, as you know, is a very small thing, and we know very little about it. Now,...
Philosophy
Radioactive disintegration, discovery of the atomic nucleus, artificially produced element transformation--Ernest Rutherford's early experiments
Abstract:
Modern atomic and nuclear physics took its start in the early part of the twentieth century, to a large extent based upon experimental investigations of radioactive phenomena. Foremost among the pioneers of the new kind of physics was Ernest Rutherford, who made fundamental contributions to the structure of matter for more than three decades and, in addition, founded important research schools in Manchester and Cambridge. This paper reviews the most important aspects of Rutherford’s scientific work in the period from about 1900 to 1920, and it also refers to some of his last experiments of the 1930s. The emphasis is on his theory of radioactive disintegration (1902), the discovery of the atomic nucleus (1911), and the first artificially produced element transformation (1919). Following the transmutation experiments, Rutherford developed elaborate models of the atomic nucleus, but these turned out to be unsuccessful. Other subjects could be included, but the three mentioned are undoubtedly those of the greatest importance, the nuclear atom perhaps the greatest and the one with the most far-reaching consequences.
"Rutherford, Radioactivity, and the Atomic Nucleus" by Helge Kragh
- In Praise Of Ernest Marsden
Tomorrow would be the 122nd anniversary of the birth of Ernest Marsden, the man who discovered the nucleus for the man who discovered the nucleus. As an undergraduate at the University of Manchester studying physics, Marsden became a laboratory assistant...
- The Bohr Model Of The Atom...spread The Word
Summary: The emergence of quantum theory in the early decades of the twentieth century was accompanied by a wide range of popular science books, all of which presented in words and in images new scientific ideas about the structure of the atom. The work...
- Canadian Physicist...harriet Brooks
Harriet Brooks July 2nd 1876 to April 17th, 1933 Canadian nuclear physicist who was probably the first to observe the recoil of the atomic nucleus as nuclear particles were emitted during radioactive decay. During the years 1901-05, she contributed much...
- Periodic Table...#112 Is Official
Gesellschaft fur Schwerionenforschung (GSI) in Darmstadt, Germany is the hot bed for discovering and confirming new elements. On November 9th, 1994 the first atom with atomic number 110 was discovered...later confirmed and named in 2003 as Darmstatdium;...
- Physicists--recorded Moments
It is a pity that audio and visual recordings weren't possible throughout man's history. But here are four items... Ernest Rutherford "The bother is that a nucleus, as you know, is a very small thing, and we know very little about it. Now,...