Mechanics of machines describes the application of mechanics, both statics and dynamics, in solving mechanical engineering problems related to various machines, such as belt and pulley systems, gears, flywheels, gyroscopes and etc. The balancing and vibration of rotating masses and reciprocating systems are the core elements under this study.
Dynamics is a study of mechanics that concerns the action of forces in producing motions of bodies. Kinetics and kinematics of particles and rigid bodies are the principal theories. The concepts of work, momentum and energy are always integrated in the analysis to identify the behaviors and responses of a dynamical system.
Thermodynamics is a fundamental knowledge to deal with energy. The First Law of Thermodynamics and the Second Law of Thermodynamics are the very basic theoretical approaches to solve the energy related contexts. In details, the topics to learn under this subject are pure substance, heat transfer, work, closed systems, open systems, steady and transient flow processes, heat engines and reversed heat engines, reversible and irreversible processes, entropy and etc. The knowledge is applied to solve various kind of thermal engineering applications, such as internal combustion engines, gas turbines, steam power plant and refrigeration cycles.
Statics is an essential basic knowledge in mechanical and civil engineering practices. The knowledge is about to apply the resultant and equilibrium of forces to solve mechanics problems by constructing free body diagrams for particles and rigid bodies. The Newton’s Law is applied in formulating the moment and equilibrium equations to solve mechanics issues such as friction, trusses, frame and machines applications. Other related knowledge that ones should possess are the concept of distributed forces, which include centroid and centre of gravity, and the generated surface area and volume of revolution.
Thomas Alva Edison. American prolific inventor and businessman.
Quote: Many life’s failures are people who did not realize how close they were to success when they gave up.
Edison invented tremendous devices that widely influenced life of the entire world, encompassing the phonograph, the motion picture camera, and a durable, practical electric light bulb. Dubbed “The Wizard of Menlo Park”, he was one of the first inventors to apply the principles of mass production and large-scale teamwork to the process of invention, and because of that, he is often credited with the creation of the first industrial research laboratory. Thomas Edison held a world record of 1093 patents for inventions .
Issac Newton – English physicist and mathematician, and the greatest scientist of his era. Most of his discoveries still influence us in the present.
Quote – If I have ever made any valuable discoveries, it has been owing more to patient attention, than to any other talent.
Newton was accomplished for discovering numerous brilliant scientific and mathematical concepts. Among those discoveries were his theories of motion and gravitation, the components of light and color and his development of the foundations of calculus. “Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.”
Stephen Hawking, English theoretical physicist and cosmologist who is universally considered to be one of the most intelligent scientists alive today. Currently, he is the director of research at the Centre for Theoretical Cosmology, University of Cambridge.
Quote: We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the Universe. That makes us something very special.
Stephen Hawking has explored on the basic laws which govern the universe. With Roger Penrose he showed that Einstein’s General Theory of Relativity implied space and time would have a beginning in the Big Bang and an end in black holes. These results indicated it was necessary to unify General Relativity with Quantum Theory, the other great Scientific development of the first half of the 20th Century. One consequence of such a unification that he discovered was that black holes should not be completely black, but should emit radiation and eventually evaporate and disappear. Another conjecture is that the universe has no edge or boundary in imaginary time. This would imply that the way the universe began was completely determined by the laws of science.
Isaac Asimov – Russian-born, American author, professor of biochemistry at Boston University
Quotes – The most exciting phrase to hear in science, the on that heralds the most discoveries, is not “Eureka!” (I found it!) but “That’s funny…”
Isaac Asimov was one of the 20th century’s most prolific author who penned nearly 500 books, he published influential sci-fi works like I, Robot and the Foundation trilogy, as well as books in a variety of other genres.
“If you want to be a prolific writer, you have to be a single-minded, driven, non-stop person. Sounds horrible, doesn’t it? Well, then, concentrate on being a good writer, and leave prolific for those poor souls who can’t help it.”
Mohandas Karamchand Gandhi, India Anti-War Activist
Quote: The Roots of Violence – wealth without work, pleasure without conscience, knowledge without character, commerce without morality, science without humanity, worship without sacrifice, politics without principles.
Mahatma Gandhi was the primary leader of India’s independence movement and also the architect of a form of civil disobedience that would influence the world. Strength does not come from physical capability. It comes from an indomitable will.
Scientist: Claude Bernard, French physiologist.
Quote: The joy of discovery is certainly the liveliest that the mind of man can ever feel.
Major discourse on scientific method: An Introduction to the Study of Experimental Medicine (1865)
Known and Unknown. What makes a scientist important, he states, is how well he or she has penetrated into the unknown. In areas of science where the facts are known to everyone, all scientists are more or less equal—we cannot know who is great. But in the area of science that is still obscure and unknown the great are recognized: “They are marked by ideas which light up phenomena hitherto obscure and carry science forward.”