Airplane flights do not follow a straight line but rather a curved path, and this choice goes beyond any technical issue—it is an adaptation to the curvature of the planet itself. In geometry, we learn that the shortest distance between two points is a straight line, but this principle applies only to flat surfaces, like a sheet of paper. When considering the spherical shape of the Earth, the shortest distance between two points becomes a curve known as a geodesic. This concept originates from Riemannian geometry, which is better suited to curved surfaces. Flight planners use this approach to map out the shortest routes to save time and fuel. These geodesic paths represent the most efficient routes on a sphere. Instead of flying in a "straight line" as it appears on a flat map, airplanes follow a curved trajectory that is, in three-dimensional reality, the shortest path. These air routes are a fascinating testament to the Earth's curvature. Every flight follows a course that might seem counterintuitive, but in fact, represents the shortest distance and least effort on our spherical planet.
The Palace Tombs in Petra are a group of ancient rock-cut tombs located in the southwestern part of the city of Petra, in modern-day Jordan. They are considered to be among the most impressive and orn...Read more
View (12,297) | Like (2) | Comments (0)The Arkadiko Bridge or Kazarma Bridge is a Mycenaean bridge near the modern road from Tiryns to Epidauros in Argolis on the Peloponnese, Greece. The stone crossing, which is dated to the Greek Bron...Read more
View (12,770) | Like (2) | Comments (0)The mummy of Ramesses II was discovered within the Royal Cache (TT320) close to Deir El-Bahari, Theban Necropolis. This Royal Cache was used by ancient priests to provide the royal and elite mummies w...Read more
View (39,865) | Like (1) | Comments (0)Ramses II, who reigned from 1303 BC to 1213 BC, is widely regarded as the most powerful and influential pharaoh of Egypt’s New Kingdom, the height of the civilization’s prosperity. He ruled for...Read more
View (57,605) | Like (0) | Comments (0)The Temple of Khnum is an ancient Egyptian temple in the city of Esna in Luxor Governorate, Upper Egypt, about 55 kilometers south of Luxor. It had the ancient Egyptian name Hout-Khenmu (House of K...Read more
View (46,363) | Like (1) | Comments (0)Statue of Liberty – New York, USA. A lesser-known fact about the Statue of Liberty is that she wasn’t originally green! When the statue was unveiled in 1886, it was a shiny reddish-brown color due...Read more
View (103,983) | Like (0) | Comments (0)The Roman Theater in Amman, also known as the Amman Citadel Theater or the Odeon, is an ancient Roman amphitheater located in the heart of Amman, Jordan. It was built during the reign of Emperor Anton...Read more
View (11,369) | Like (1) | Comments (0)The Sacred City of Caral in peru. At almost 5000 years old, it's the oldest city in the Americas and predates even the great Pyramids of Egypt. It includes 6 pyramids, the largest of which measures...Read more
View (45,002) | Like (1) | Comments (0)The Konso people in Ethiopia are one of the nationalities well known for their unique funerals organized for the tribe chiefs. Wakas (wagas, waakas) are burial structures erected after the death o...Read more
View (56,009) | Like (0) | Comments (0)Tomb of the Persian King Darius l (the Great) at Naqsh-e Rustam, in Iran. Reigning from c. 522 to c. 486 BC, he was one of the greatest Persian rulers. He ruled the Persian Empire when it was at its p...Read more
View (45,169) | Like (2) | Comments (0)আপনার ইনকাম এর প্রথম অধিকার আপনার স্ত্রীর, তারপর সন্তানের, তারপর বাবা মায়ের,...Read more
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View (25,062) | Like (0) | Comments (0)The Menhir de Champ-Dolent stands near Dol-de-Bretagne in Brittany, France, as one of the tallest and most impressive megalithic monuments in the region. Reaching a height of 9.5 meters (31 feet),...Read more
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View (1,943) | Like (0) | Comments (0)জীবন বদলে যাবে... একজন মানুষের জীবনে P এর গুরুত্ব যে কতখানি তা একটু পরেই বুঝতে ...Read more
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