
In ancient times, scientific knowledge was obtained with limited means. Nevertheless, despite these challenges, people succeeded in acquiring knowledge that transcended the limits of their era through observation and rational reasoning. One such individual was the Greek mathematician and geographer Eratosthenes, who lived in 235 BCE. His method for calculating the Earth’s diameter is still regarded today as a prime example of scientific ingenuity.Eratosthenes’ MethodEratosthenes knew that on the
ENSeniha Rabia Özder

Roald Amundsen (1872–1928) was a Norwegian polar explorer renowned for his expeditions in the Arctic and Antarctic regions in the early 20th century. He was the first person to navigate the Northwest Passage and became the first human to reach the South Pole in 1911. The methods he employed in polar exploration, his approach to logistical planning and the data collected during his journeys significantly influenced the development of modern polar expeditions. Amundsen’s work is regarded as one of
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Rümeysa Kaplan

Located at the easternmost tip of Türkiye, where the borders of Iran and Iraq meet, Şemdinli is a uniquely special district. This place, resembling a hidden treasure nestled in the heart of nature, is like a fairy-tale town waiting to be discovered, with its high mountains and lush green forests. Where Is Şemdinli Located? Şemdinli belongs to Hakkari Province and lies at Türkiye’s most remote “triangular” point. At an elevation of 1,450 meters above sea level, its air is always fresh and cool. S
ENÖmer Keleş

The Epipelagic Zone, the uppermost layer of the World oceans, extends to a depth of approximately 200 meters below the surface. This region is also known as the "sunlight zone" because it is the layer where sun light penetrates the ocean most intensely. The majority of oceanic photosynthesis events occur in this zone, making it of great importance for sea life.Layers of the ocean" image-alternate="" image-element-format="right">Physical and Chemical Properties of the Epipelagic ZoneThe epipel
ENSeniha Rabia Özder

Yeni Han is an Ottoman-era commercial caravanserai located in the Şehzadeler district of Manisa, constructed in the second half of the 19th century. The two-story, courtyard-based, arcaded structure reflects the classical caravanserai typology and today continues to serve both tourist and cultural functions by housing craft workshops, cafes, and exhibition spaces.LocationYeni Han is situated within the boundaries of the Şehzadeler district of Manisa province. It is located in the historic center
ENHelin Aksoy

Lake Baikal is a freshwater lake located in Eastern Siberia, notable for both its geological and biological significance. It is estimated to have formed approximately 25 to 30 million years ago and is considered one of the oldest lakes on Earth. With a maximum depth of 1,642 meters, it is the deepest lake in the world. It holds a water volume of 23,615 km³, containing the largest reserve of freshwater on the planet. Approximately 20–23% of the world’s unfrozen freshwater is found in Lake Baikal.
ENMuhammet Nuri Kapıcıoğlu

The Taurus Mountains, extending southward from Türkiye, constitute a major mountain system that plays a significant role in the geomorphological structure of the Anatolian Peninsula. Forming an extension of the Alpine–Himalayan orogenic belt, they were uplifted during the Alpine orogeny, which lasted from the Cretaceous to the Tertiary, as a result of the collision between the Anatolian and African plates.The highest elevations of the Taurus Mountains are formed by peaks such as Demirkazık (3,75
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Esma Oğuz

Erzurum is a district located on the high and rugged terrain of East Anatolia Region. Defined by its proximity to the historic Silk Road route and its distinctive geographical features, the district possesses a variety of cultural elements and natural resources. Tekman’s economy is primarily based on agriculture and livestock farming, and in recent years it has begun to reveal its tourism potential.Tekman (Source: Encyclopedia of Erzurum)" image-alternate="" image-element-format="right">Histo
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Büşranur Akpınar

Ünye is a district located in Türkiye’s Black Sea Region, known primarily for hazelnut cultivation. In addition to its agricultural production, the district plays a regional role through its industrial and commercial activities. Ünye’s historical and geographical features are significant factors influencing its position within the Black Sea Region. Hazelnuts are a major agricultural product in the district, and industrial and commercial activities contribute to diversifying the local economy.Üny
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Sinan Turan

Karaçoban is a district affiliated with Erzurum. Located in the southeast of the provincial capital in an area of place, it lies within the high and rugged geography of the East Anatolia Region. Due to its position along the historic Silk Road, Karaçoban has been home to various civilizations and possesses natural and cultural elements. Agriculture and animal husbandry are among the main sources of livelihood in the district, which in recent years has also hosted initiatives aimed at developing
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Büşranur Akpınar