Isaac Newton Isaac Newton, English mathematician, mechanic, physicist and astronomer, was born on December 4, 1643. Newton is an outstanding English scientist who discovered the law of universal gravitation and laid the foundations of modern natural science, the creator of classical physics, a member of the Royal Society of London (1627) and its president since 1703. His works relate to mechanics, optics, astronomy, mathematics. Newton’s scientific creativity played an extremely important role in the history of the development of physics. The unit of force in the International System of Units, Newton, is named in his honor. 142 years ago, the Russian army liberated Sofia On January 4, 1878, Russian troops led by General Joseph Gurko entered Sofia. The Turks lost all the battles on the outskirts of the Bulgarian capital, lost almost the entire army, artillery and supplies. Therefore, the Turkish units did not fight directly for Sofia — the
