Introduction: A Mathematician Larger Than Mathematics Some scientists are remembered for a theorem. Others become associated with an equation, an instrument, or a school of thought. Mihailo Petrović Alas belongs to a much rarer class: intellectual figures whose work cannot be contained within a single discipline. Born in Belgrade on 6 May 1868, Mihailo Petrović, … Read more
How a Serbian Scientist Changed Our Understanding of Ice Ages, Planetary Climate, and Mathematical Geophysics Few scientists have succeeded in transforming an entire scientific discipline through the power of mathematics. Among this select group stands Milutin Milanković (1879–1958), the Serbian mathematician, astronomer, climatologist, geophysicist, civil engineer, and visionary thinker whose work fundamentally changed humanity’s understanding … Read more
Introduction: Why Pupin Deserves a Place Among the Great Scientific Minds Mihajlo Idvorski Pupin was one of the most important scientist-inventors in the history of electrical engineering, telecommunications, and applied mathematical physics. He was a Serbian-American physicist, inventor, professor, writer, and public intellectual whose work helped extend the practical range of long-distance telephone communication through … Read more
Mathematics has never been merely a collection of formulas, rules and procedures to me. It has always been a way of thinking: a language of structure, precision, patterns, proof and problem solving. Long before I became a professional electrical engineer, I was fascinated by logical structures, numerical patterns, elegant solutions and the ability of mathematics … Read more
A rigorous but readable reference article on how circular motion, normal force, static friction, torque balance, energy, and rider control make the Wall of Death possible. Important safety note: The Wall of Death is a professional stunt. The equations below explain the physics of the phenomenon; they are not practical instructions for attempting it. A … Read more
Introduction: Why Tesla Still Matters Few individuals in modern history have changed the technological direction of civilization as deeply as Nikola Tesla. He was not merely an inventor in the narrow sense, nor only an engineer, nor only a visionary. He was a rare figure whose imagination operated at the scale of systems: power generation, long-distance transmission, electric … Read more
Introduction Few symbols in mathematics are as universally recognized as π (pi). Whether one studies elementary geometry, advanced calculus, engineering, physics, statistics, signal processing, or number theory, π appears repeatedly in formulas describing circles, waves, probabilities, and even the structure of the universe itself. In previous articles, we explored three remarkable mathematical constants: Together with … Read more
The Golden Ratio is one of the most fascinating numbers in all of mathematics. It appears in geometry, number theory, algebra, computer science, architecture, art, biology, and countless natural growth processes. For centuries, mathematicians, philosophers, artists, and scientists have been intrigued by its unique mathematical properties and its surprising appearance in the world around us. … Read more
Introduction The transient response of electrical circuits is one of the fundamental topics in circuit theory and electrical engineering. While RC and RL circuits are governed by first-order differential equations, an RLC circuit contains both energy-storage elements—a capacitor and an inductor—which leads to a second-order differential equation and considerably richer dynamic behavior. Depending on the … Read more
Introduction The transient behavior of electrical circuits is one of the fundamental topics in electrical engineering. While resistors react instantaneously to changes in voltage and current, inductors possess the unique ability to oppose sudden changes in current due to their magnetic field energy storage. As a consequence, whenever a DC source is connected to or … Read more