Ever since my childhood, I have always been fascinated by Physics. According to the definition of Wikipedia, Physics is a natural science that involves the study of matter and its motion through space time, along with related concepts such as energy and force. More badly, it is the general analysis of nature, conducted in order to understand how the universe behaves. The modern definition of Physics is a slight modification of the traditional definition, “The science of the properties and inter-relations of matter and energy.” (Oxford English Dictionary)
I got first introduced to the term Modern Physics after my tenth grade and found it even more interesting. The term Modern Physics refers to the post Newtonian conception of Physics. The term implies that classical descriptions of the phenomena are lacking, and that an accurate, “modern”, description of reality requires theories to incorporate elements of quantum mechanics or Einsteinium relativity, or both. In general, the term is used to refer to any branch of physics either developed in the early 20th century and onwards, or branches greatly influenced by early 20th century Physics.
And if there is one man who more than any other has come to be regarded as the personification of modern discovery in the field of physics it is the reputed giant among scientists – Albert Einstein.
Albert Einstein played a large part in modern physics. He developed formulas that described the way matter and energy was related. Just about everyone has heard of the formula E=mc^2. That formula explains how energy is related to mass. The idea found its way into the study of fission reactions, and it was proved that enormous amounts of energy were stored in even one atom of a substance.
Even now, scientists are stilling testing the boundaries of physics and the laws of physics. Only a few years ago a new state of matter was created. The Bose-Einstein Condensate was theorized decades ago, but scientists have only recently been able to create it in lab. Everyday astronomers are studying space and learning how black holes and galaxies interact. Stephens Hawking is one of the more famous scientists working in that field.
In “A Brief History of Time” , one of the most successful non-fiction books published in this century, Stephen Hawking relates how far scientists have progressed in this, and his own considerable contribution. Amongst other results, he and Roger Penrose showed that General Relativity implies that at some point in the past, the universe had zero volume and infinite mass density. This point would represent the beginning of time.
And the study continues to go continue.
These are generally considered to be the topics regarded as the “core” of the foundation of Modern Physics.
1. Atomic Theory
2. Black body radiation
3. Franck-Hertz experiment
4. Geiger-Marsden experiment
5. Gravitational Lensing
6. Michelson-Morley experiment
7. Photoelectric effect
8. Quantum thermodynamics
9. Radioactive phenomena
10. Perhelion precession of Mercury
11. Stern-Gerlach experiment
12. Wave-particle duality