Physics

Heinrich Rudolf Hertz


Heinrich Rudolf Hertz (1857 - 1894) was born on February 22, 1857 in Hamburg, during primary school he attended the science workshops of the school where he studied, showing interest in research.

He entered an engineering college and a year later served the army for a year as well.

Due to curiosity about science, he decided to enter the physics course at the University of Berlin (1878), where he always excelled in relation to the students in the class. He became an assistant to Professor Hermann von Helmholtz (1880) and studied the elasticity of gases and the electrical discharges through them.

Then began studies on Maxwell's electrodynamics (1883), which was not yet experimentally proven. Discovered during a class the phenomenon of the secondary spark (1886), two coils attached to a spark, when one coil released a spark, the other also released a spark, but of less intensity, noise and brightness, the young scientist realized that those sparks electrical effects were the result of electrodynamic phenomena that were processed near oscillating circuits with minimal capacitance and self-induction. By repeating this experiment countless times, he concluded that electromagnetic waves existed and propagated, then began to study the properties of these waves, and found that they behaved like light waves, had the same velocity, spread straight in space, but they had an extremely longer wavelength than light. With the tar prism demonstrated the refraction of electromagnetic waves.

In the early months of 1893 Hertz fell ill, after which, looking restored, returned to the laboratory. In December of that year, however, he was forced again to stop all activity. On January 1, 1894, before his 37th birthday, Hertz died, leaving a work that allowed for unprecedented progress in the field of long-distance communications. A few months after his death, the three volumes of "The Principles of Mechanics", Hertz's last work, were published.