History – Page 5 – Science Observer

Earth’s Core: Structure and How It Was Discovered

The core of Earth is the central part of our planet, lying beneath the mantle and making up about one-third of Earth’s total mass. It is divided into two distinct…

deka September 28, 2025

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Robert Bartini: The Visionary Aircraft Designer

Robert Ludvigovich Bartini was born in 1897 in Fiume, then part of the Austro-Hungarian Empire (today Rijeka, Croatia). Coming from a noble Italian family, he showed early interest in engineering…

deka September 28, 2025

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Nikola Tesla: Biography and Inventions

Nikola Tesla was born on July 10, 1856, in Smiljan, a village in the Austrian Empire (modern-day Croatia). From a young age, Tesla showed remarkable memory and imagination, often visualizing…

deka September 28, 2025

History Science

Electrical Engineering: History and Modern Developments

Electrical engineering emerged in the 19th century with the discovery of fundamental laws of electricity and magnetism. The work of Michael Faraday, James Clerk Maxwell, and Georg Ohm laid the…

deka September 27, 2025

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The Periodic Table of Mendeleev: Structure of the Chemical World

The Periodic Table of Elements was first created by Russian chemist Dmitri Mendeleev in 1869. He organized the known chemical elements according to their properties and atomic weights. Remarkably, Mendeleev…

deka September 23, 2025

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Genetics: The Science of Heredity and Variation

Genetics is the branch of biology that studies genes, heredity, and variation in living organisms. It explains how traits are passed from one generation to another through DNA. From eye…

deka September 23, 2025

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Physics: From Antiquity to Modern Times

The origins of physics trace back to ancient civilizations, where people sought to explain natural phenomena through observation and reasoning. In Mesopotamia and Egypt, early records describe the motion of…

deka September 22, 2025

History Science

Exact Sciences: Foundations of Precision and Logic

Exact sciences are branches of knowledge that rely on precise measurements, logical reasoning, and mathematical models to describe and predict natural phenomena. They include disciplines such as mathematics, physics, chemistry,…

deka September 22, 2025

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Algebra: From Basics to Modern Applications

Algebra is a fundamental branch of mathematics that deals with symbols and the rules for manipulating them. Unlike arithmetic, which works with specific numbers, algebra uses variables to represent unknown…

deka September 22, 2025

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Plastic – Where Did It Come From?

Plastic is one of the most widely used materials in the modern world, present in everything from packaging to medicine, electronics, and construction. Its convenience and versatility have transformed human…

deka September 8, 2025