Researchers from the Chinese Academy of Sciences have successfully developed a groundbreaking solid-state deep ultraviolet (DUV) laser, which can emit coherent light at a wavelength of 193 nanometers, consistent with the light source wavelength of the currently widely adopted DUV exposure technology. The relevant information was disclosed on the official website of the International Society for Optics and Photonics (SPIE) in early March.
Teams including those from the Nanjing Institute of Geology and Palaeontology, CAS, etc. have discovered the stromatoporoid fossil named Guanshanyuia leizu from 480 million years ago in Yuan'an, Yichang city. This is also the oldest known stromatoporoid fossil. This discovery not only pushes the fossil record of reef-building stromatoporoids about 20 million years earlier but also reveals the unique mechanisms of the evolution of early reef ecosystems and biomineralization. The achievement was published in the Proceedings of the National Academy of Sciences of the United States of America.
According to the AI analysis platform aitools.xyz, DeepSeek has become the fastest - growing AI tool globally, and its monthly new website visit volume has exceeded that of OpenAI's ChatGPT. The report states that in February 2025, DeepSeek's visit volume reached 525 million times, exceeding ChatGPT's 500 million times.
Han Shangyou, the president of Douyin, announced at the 2025 China Network Media Forum that the website of "Douyin Security and Trust Center" was launched. The website publicly discloses to the society the algorithm principle, community norms, governance system and user service mechanism of Douyin. The website publicly discloses the principle of Douyin's recommendation algorithm for the first time, introducing how its recommendation algorithm estimates the probability of user behavior and realizes more high - quality and rich content recommendation through multi - objective modeling and other methods. And the algorithm needs to be constrained and regulated by the platform governance system. The website also discloses the review process of Douyin's platform governance, elaborating on how the platform copes with the challenges brought by illegal content such as rumors and online violence.
Unitree Technology's humanoid robot G1, the "world's first AI robot anchor", has stepped onto the e - commerce live - stream stage.
As an anchor, Unitree robot G1 sells its "good brother", Unitree Technology's robot dog GO2, in the live - stream room. There are five combinations of two products, AIR and PRO, with prices ranging from 9,997 yuan to 21,999 yuan.
It is reported that the anchor Unitree robot G1's sales exceeded 1 million yuan within 1 minute. The live - stream lasted for more than 10 minutes, and the final turnover was approximately 1.9 million yuan.
