The precision-laser aerial surveys have revealed how advanced was the ghost city of Nan Madol when it existed and how it now sits hidden in the middle of the Pacific Ocean.

The precision-laser aerial surveys have revealed how advanced was the ghost city of Nan Madol when it existed and how it now sits hidden in the middle of the Pacific Ocean. Also known as 'the Venice of the Pacific', this megalithic stone city has sometimes been compared to mythic Atlantis and now researchers are putting all their energy into uncovering the ruins of Nan Madol as they adopt plans to preserve it as a UNESCO World Heritage Site. The aerial surveys, which have been conducted using LiDAR or 'Light Detection and Ranging' laser-mapping, uncovered "a sophisticated and extensive landscape of cultivation features hidden under Temwen Island's vegetation." Also Read: Not Mesopotamia, but the world's oldest city existed in THIS country, hints evidence This discovery is rewriting the history of Pacific Island cultures and explaining how societies, which were believed to have depended on natural tropical bounty and subsistence fishing, actually engaged in sophisticated agricultural planning. The international team of researchers noted that "LiDAR can reveal whole archaeological landscapes hidden under heavy vegetation. That has led to its comparison with radiocarbon dating as a groundbreaking technological advance in archaeology." Here's what researchers found in ghost city Scientists, headed by Baltimore's Cultural Site Research and Management (CSRM) Foundation, mapped a network of irrigation terraces which once supplied freshwater across Nan Madol and in its dense tropical foliage where more ruins remain hidden. Archaeologists believe that Nan Madol was a prominent city from 1100 to 1628 AD and its decline started with the fall of the local Saudeleur monarchs in the 17th century. Head of the project Dr. Douglas Comer said, "The consensus among archaeologists has been that there was no intensification of agriculture in Micronesia by means of formal field systems." Dr Comer's team, while working with the local College of Micronesia, along with Stanford, Sandia National Laboratories and others, has questioned the older notions on which culture thrived on fermented 'breadfruit' (Artocarpus altilis). Also Read: 26,000-year-old human, animal footprints unearthed in Spain. It once was a settlement of... In a US State Department release, he said that an "amazingly complex system of irrigated fields covering Temwen island" hinted at the existence of early and sophisticated taro root farming. "The Temwen system also bears a resemblance to some Polynesian terracing systems, including the Kohala field system on Hawaii Island," stated his team in the journal Remote Sensing in 2019, further saying "and recently described slope terraces on Tutuila in American Samoa." "Such complexity is in accord with what is observed in the LiDAR images of Temwen," he said. (With inputs from agencies)

A 'ghost city' sits in the middle of the Pacific Ocean. Aerial images now reveal what's it like

China-based Hesai Group has filed a lawsuit against the U. S. government for putting it on a list of companies which have been found to be working with Chinese military. The lawsuit was filed after the U. S. Department of Defense added Hesai to its list of firms in January, simultaneously with several other businesses, pointing out the concerns about their alleged connections to the Chinese military.

Background of the lawsuit

The leading manufacturing company of lidar light sensors that are used in the self-driving vehicles and driver-assistance systems, Hesai Group, questions the decision and says that the management and operations of the company are not influenced by the Chinese governmental or military entities. The company asserts that it is primarily owned by non-Chinese shareholders and thus is focused on the commercial and civilian use of its technology.

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Consequences of the listing

The fact of being on the 1260H list has caused significant reputational damage for Hesai Group, which has in turn led to a steep fall in its stock price as well as the loss of possible business opportunities. Although the inclusion on the list does not present the immediate imposition of sanctions, it is a warning to the U.S. entities about their dealings with the listed companies.

Legal action and requests

In its lawsuit brought on Monday, Hesai Group insists that it was not given any warning or explanation, or even a chance to defend itself before being put on the list. The company demands that the US district court order the government to get its name out of the list, referring to the unequal treatment and the absence of due process.

Response from the government

The U. S. Department of Defense has not made any remarks on the proceeding of the lawsuit. On the other hand, Hesai Group insists that the government has not given any serious answers to its requests for removal of the group from the list or does not try to solve the problem outside the courtroom.

Concerns raised by lawmakers

Some U. S. lawmakers have indicated the doubts on the use of the advanced technology, whose components are made by Chinese firms, including lidar, radar, and semiconductors. They emphasize the possible dangers of data collection and possible sharing of it with China by citing the national security concerns.

U.S. Transportation Secretary Pete Buttigieg previously voiced concerns about the national security implications of such technologies. He stressed the need for a better understanding of the ownership structure of the companies that provide components for the transportation systems to solve the problems effectively.

As the legal battle unfolds, the outcome will likely influence the landscape of technology trade relations between the U.S. and China, with broader implications for the global tech industry.

(Inputs from Reuters)

China-based Hesai Group has filed a lawsuit against the U. S. government for putting it on a list of companies which have been found to be working with Chinese military.

China-based Hesai Group has filed a lawsuit against the U. S. government for putting it on a list of companies which have been found to be working with Chinese military. The lawsuit was filed after the U. S. Department of Defense added Hesai to its list of firms in January, simultaneously with several other businesses, pointing out the concerns about their alleged connections to the Chinese military. Background of the lawsuit The leading manufacturing company of lidar light sensors that are used in the self-driving vehicles and driver-assistance systems, Hesai Group, questions the decision and says that the management and operations of the company are not influenced by the Chinese governmental or military entities. The company asserts that it is primarily owned by non-Chinese shareholders and thus is focused on the commercial and civilian use of its technology. Also Read: EU countries in favour of cutting trucks' CO2 emissions Consequences of the listing The fact of being on the 1260H list has caused significant reputational damage for Hesai Group, which has in turn led to a steep fall in its stock price as well as the loss of possible business opportunities. Although the inclusion on the list does not present the immediate imposition of sanctions, it is a warning to the U.S. entities about their dealings with the listed companies. Legal action and requests In its lawsuit brought on Monday, Hesai Group insists that it was not given any warning or explanation, or even a chance to defend itself before being put on the list. The company demands that the US district court order the government to get its name out of the list, referring to the unequal treatment and the absence of due process. Response from the government The U. S. Department of Defense has not made any remarks on the proceeding of the lawsuit. On the other hand, Hesai Group insists that the government has not given any serious answers to its requests for removal of the group from the list or does not try to solve the problem outside the courtroom. Concerns raised by lawmakers Some U. S. lawmakers have indicated the doubts on the use of the advanced technology, whose components are made by Chinese firms, including lidar, radar, and semiconductors. They emphasize the possible dangers of data collection and possible sharing of it with China by citing the national security concerns. U.S. Transportation Secretary Pete Buttigieg previously voiced concerns about the national security implications of such technologies. He stressed the need for a better understanding of the ownership structure of the companies that provide components for the transportation systems to solve the problems effectively. As the legal battle unfolds, the outcome will likely influence the landscape of technology trade relations between the U.S. and China, with broader implications for the global tech industry. (Inputs from Reuters)

Chinese lidar maker Hesai Group sues U.S. government over allegations

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