Problem description:
Why? How to judge?
Analysis:
No, the canal was dug by hand, not the Nile!
The Nile is the longest river in the world, which originates from the Burundi Plateau in northeast Africa and flows through nine countries including Rwanda, Burundi, Tanzania, Kenya, Uganda, Zaire, Sudan, Ethiopia and Egypt, with a total length of more than 6,600 kilometers. Finally it flows into the Mediterranean Sea, which is one of the most international rivers in the world.
The word "Nile" first appeared more than 2000 years ago. There are two theories about its origin: one is from Latin "nlie", which means "impossible". Because the middle and lower reaches of the Nile have been inhabited for a long time, but because of the barrier of waterfalls, people in the middle and lower reaches think that they can't understand the source of this river, so they named it the Nile. The second is that the word "nilus" evolved from the name of the ancient Egyptian Pharaoh (king) Nyroos.
The Nile is formed by the confluence of three rivers: kagera river, White Nile and Blue Nile. The valley delta in the lower Nile is one of the earliest cradles of human civilization, where ancient Egypt was born. Up to now, 96% of Egypt's population and most of its agricultural production are concentrated here. Therefore, the Nile is regarded as the lifeline of Egypt.
In addition: According to the statistics of 1995, the length of the Amazon River is more than 7 100 kilometers, not more than 6,400 kilometers as previously counted. Therefore, the Nile is now the second longest river in the world!
Let me give you an example of a canal:
Panama Canal is a navigable canal connecting the Atlantic Ocean and the Pacific Ocean through the isthmus of Panama. Its opening has greatly shortened the voyage between the two oceans, and it has the same world strategic significance as the Suez Canal, so it is known as the "bridge of the world".
The Panama Canal is 8 1.3km long, with 152m at its narrowest point and 304 m at its widest point. The area covered by 16.09km extending from the central line of the canal to both sides is the Panama Canal Zone, with a total area of1432km.
The history of this canal can be traced back to AD 1534. At that time, King Carlos I of Spain ordered an inspection of the isthmus of Panama and planned to dig a canal at its narrowest point. However, due to the limited technical conditions and construction capacity at that time, the Spanish only paved a post road through the isthmus with pebbles along the foot of the mountain. 188 1 year, the French Canal Company, which successfully opened the Suez Canal, first obtained the right to dig the Panama Canal, but the project was forced to be interrupted in 1889 due to the harsh local natural conditions. 1903, the United States instigated Panama to become independent from Colombia and signed the Panama Canal Treaty with the newly established Panama. According to this treaty, the United States has the right to dig canals in Panama and "permanently use, occupy and control" canals and canal areas. The United States paid Panama $654.38 million+million as the so-called "signing compensation". 19 14 years, workers from more than 50 countries finally exchanged their blood and tears for the navigation of the Panama Canal.
After the opening of the Panama Canal, it greatly promoted the development of the world shipping industry. At present, goods accounting for 5% of global trade volume have been sent to all parts of the world through canals. The United States, Japan and China are the three major users of the Panama Canal. 65438-0996 Hongkong Hutchison Whampoa Group Co., Ltd. obtained the right to operate balboa Port and cristobal Port at both ends of the Panama Canal. The management period is 25 years, which can be extended for another 25 years after expiration.