Floodlights were lit up all along the coast of the Sea of Marmara, revealing the silhouettes of mosques and slender minarets glittering in the night sky. It was vespers time, and loudspeakers all over the city were echoing with calls to worship. la-ilaha-illa-allah。 There is only one God. Even as the pious hurried to the mosque, the rest of the city went on with their lives without looking up. Noisy college students drink beer, businessmen make deals, vendors sell spices and rugs, and tourists look on in wonder. It is a world torn apart, a city of opposing forces — religious and secular; ancient and modern; eastern and western. This eternal city straddles the geographical boundary between the two continents of Asia and Europe, and can be said to be a bridge from the old world to an older one. Istanbul. Although it is no longer the capital of Turkey, for centuries it was the core of three distinct empires: Byzantium, Rome, and the Ottomans. Because of this, Istanbul is one of the most diverse places in the world in terms of historical background. From the Topkapi Palace to the Blue Mosque to the Seven Towers Citadel, the city is filled with tales of battle, glory and defeat. Tonight, in the night sky above its busy crowd, a C-130 transport plane gradually lowered its altitude through the gathering storm front, and finally arrived at Ataturk airport. In the cockpit, Robert Langdon,ultrasonic cutting machine, wearing a seat belt, sat in a folding seat behind the pilot and looked out through the windshield, relieved that he could sit in a seat with a view. He had eaten and slept for nearly two hours in the back of the plane, and now he felt somewhat refreshed. Langdon could now see the lights of the city of Istanbul on his right, a dazzling angular peninsula jutting out into the inky Marmara Sea. This is the European part of Istanbul, and a squiggly black ribbon separates it from its Asian part. The Bosporus. At first glance, the Bosporus looks like a wide crack dividing Istanbul in two. In fact, Langdon knew that the strait was the lifeblood of Istanbul's commerce. In addition to providing the city with two coastlines, the Bosporus also allows ships to go directly from the Mediterranean to the Black Sea, making Istanbul a transit point between the two worlds. As the plane descended through a la yer of fog, ultrasonic sonochemistry machine ,ultrasonic dispersing machine, Langdon scanned the city in the distance, trying to see the magnificent building they had come to look for. Enrico Dandolo's grave. It turned out that Enrico Dandolo, the fraudulent Doge of Venice, was not buried in Venice, but his remains were buried in the center of the fortress he conquered in 1912. The whole city is spreading in all directions just below his remains. It was fitting that Dandolo was laid to rest in the most spectacular shrine the city he conquered had to offer-a building that remains the crown jewel of the region. Hagia Sophia. Hagia Sophia was built in A.D. 360 and has always been an Orthodox cathedral. But in 1204, Enrico Dandolo led the Fourth Crusade to capture the city and turn it into a Catholic church. Later, in the fifteenth century, with the capture of Constantinople by Mehmet II, it became a mosque and has been a place of religious practice for Islam. After 1935, it broke away from religious influence and became a museum. The resplendent garden of divine wisdom, Langdon thought. Hagia Sophia is decorated with far more gilded panels than St. Mark's Basilica, and its name, Hagia Sophia, literally means "divine wisdom.". Langdon imagined this magnificent structure, trying to fathom the fact that somewhere below it, tethered in a dark lagoon, was an undulating plastic bag, swinging from side to side under the water, slowly dissolving, ready to release its contents. Langdon prays they're not late. "The lower floors of the building are flooded," Sinsky told him during the flight, excitedly motioning him to follow her back to her work area. You can't believe what we just found. Have you ever heard of a documentary filmmaker named Goksel Gurunsoi? Langdon shook his head. "I was searching for the Hagia Sophia," Sinsky explained, "when I found a documentary about it that Gurunsoi made a few years ago." "There are dozens of documentaries about Hagia Sophia." "I know," she said, coming to her work area, "but none of them are like this." She turned her laptop around and showed it to him. You read this text. Langdon sat down and his eyes fell on the article — a round-up of various news sources, including the Daily News of Liberty — discussing Gurunsoi's latest documentary, "In the Depths of Hagia Sophia.". Langdon began to read and immediately realized why Sinskey was so excited. When he saw the first two words of the article, he looked up at her in surprise. Diving? "I know," she said. "Watch." Langdon turned his gaze back to the article. Diving under Hagia Sophia: Documentary master Gauksel Gurunsoi and his expedition diving team found some small basins submerged in water hundreds of feet below Istanbul's most visited religious buildings. In the process, they discovered numerous architectural marvels, including the tombs of martyred children who had been submerged for 800 years,ultrasonic handheld welder, as well as numerous underwater tunnels. These tunnels li nk the Hagia Sophia with the Topkapi Palace, the Tekefur Palace, and the legendary underwater extension of the Dungeon of Anemas. fycgsonic.com