After a siege that lasted exactly 53 days, the Turks conquered Byzantium (today’s Istanbul) on May 29, 1453. With this conquest, an era that had …

The Western Roman Empire collapsed in 476 AD. The Goths had seized Italy and Spain, which were within the borders of this empire. Furthermore, the …

Justinian I organized campaigns to re-establish the former Roman Empire and turn the Mediterranean into a Byzantine lake: the Vandal, Ostrogoth, and …

The Byzantines were Orthodox Christians in terms of religion and belief. The center of this church was the city of Constantinople (Byzantium). The …

Why don’t satellites fall onto the planets? This fundamental question holds the secret to orbital motion in space. The answer relies on the …

The Planets in the Solar System The Solar System we live in consists of the Sun and nine planets. Our Earth is also one of the planets in the solar …

Human Body’s Need for Energy and Material Just as a machine needs an energy source like gasoline, coal, or electricity to operate, the human body also …

The Moon is two steps away from our Earth. Don’t misunderstand: we mean two steps in an astronomical sense. Compared to the 149 million …

Our ears are the sense organs that provide us with hearing and balance. Just like the waves created by a stone thrown into the water, sound waves …

The Gunica River is approximately 32 km long. It lies within the boundaries of Police County (West Province/West Pomeranian Province). It is the left …