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China’s large solar-powered drone completes maiden flight

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China’s large-scale unmanned aerial vehicle (UAV) solely powered by solar energy completed its maiden flight on Saturday, China Media Group reported.

The UAV, named “Qimingxing-50,” which means “Morning star-50” in English, was developed by a subsidiary of Aviation Industry Corporation of China (AVIC).

It took off at 5:50 p.m. and flew for 26 minutes before landing smoothly at 6:16 p.m. in northwest China’s Yulin City, Shaanxi Province. The drone was in good condition, with all the systems operating normally, marking a complete success of the maiden flight.

“Qimingxing-50” is the first high-altitude long-endurance (HALE) UAV developed by AVIC. Such UAVs usually fly at an altitude of 15-20 km with a low speed. It’s also the company’s first large UAV with double-fuselage layout.

The fully electric-driven drone, like a satellite, can fly at high altitude for a long period of time continuously, powered by clean solar energy.

It can perform tasks such as high-altitude reconnaissance, forest fire monitoring, atmospheric environment monitoring, geographic mapping and communication relay.

 

Source: CGTN

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3 scientists awarded 2022 Nobel Prize in Physics for work in quantum mechanics

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The 2022 Nobel Prize in Physics has been awarded jointly to Alain Aspect, John F. Clauser and Anton Zeilinger, the Royal Swedish Academy of Sciences announced on Tuesday.

The prize was awarded to the three scientists “for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science,” the Nobel Committee said in a statement.

Aspect, born in 1947 in France’s Agen, is a professor at Paris-Saclay University. Clauser, 80, is a research physicist at J.F. Clauser and Associates in the United States. Zeilinger, 77, serves as a professor at the University of Vienna.

The laureates’ development of experimental tools has “laid the foundation for a new era of quantum technology,” the committee said, adding that the ability to “manipulate and manage quantum states and all their layers of properties gives us access to tools with unexpected potential.”

“The 2022 #NobelPrize laureates in physics have conducted groundbreaking experiments using entangled quantum states, where two particles behave like a single unit even when they are separated,” the committee tweeted.

“The results have cleared the way for new technology based upon quantum information.”

The three will share a prize of 10 million Swedish kronor ($901,500), which they will receive from King Carl XVI Gustaf at a ceremony in Stockholm on December 10, the anniversary of the 1896 death of scientist Alfred Nobel who created the prizes in his last will and testament.

 

Source: CGTN

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China starts selecting 4th batch of astronauts

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China started the selection process of the fourth batch of astronauts to join later manned space missions, according to the China Manned Space Agency (CMSA).

Between 12 and 14 candidates will be chosen, including seven or eight pilots. Engineers will also be selected as well as two payload experts.

The pilots will be selected among active pilots of China’s armed forces. The engineers will be picked from researchers and technicians in aerospace or related industries. And the payload experts will be drafted among those also researching space science.

The posts of payload experts are also open to applicants from Hong Kong and Macao special administrative regions for the first time.

The CMSA will carry out the selection procedure which is expected to last about 18 months.

Currently the Astronaut Center of China is training the third batch of 18 astronauts before they are certified for space missions.

China has 21 astronauts in total from the first and the second generations. 14 of them have taken part in nine missions, including the latest Shenzhou-14 mission.

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Diligent female chemist steeps in scientific innovation

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Yu Jihong, an academician of the Chinese Academy of Sciences, showed a thin “card” with high flexibility. It may be hard to imagine that it is a new type of lithium(Li)-air battery.

Yu, 55, a professor of chemistry at Jilin University in Changchun, northeast China’s Jilin Province, developed this flexible zeolite electrolyte solid-state Li-air battery, only 0.33 mm in thickness, together with her team members in 2021.

Their work has shown huge application potentials in flexible electronics and automobile power systems.

The Li-air battery is one of the breakthroughs made by Yu’s team, amid their continuous efforts to develop zeolite-based materials for more than three decades.

Zeolites are materials for molecular sieving, widely used in industrial catalysis and ion-exchange, according to Yu, a delegate to the upcoming 20th National Congress of the Communist Party of China.

Traditional studies of zeolites hit a bottleneck in the 1990s, but Yu persevered and dedicated herself to the rational synthesis of zeolites, a challenging research direction, despite others’ discouragement.

The efforts have borne fruit. Yu’s team pioneered the pathway toward rational design and zeolites synthesis. One of their major discoveries helps boost the efficiency and green development of zeolites synthesis.

These successes come with Yu’s diligence. Rushing back and forth, Yu is busy giving lessons, revising papers, and participating in academic conferences.

Yu sets an example of innovation and scientific research for her students. Her untiring efforts dedicated to teaching have nurtured more than 70 Ph.D. students.

Having won various of domestic and international awards, Yu still describes herself as “an ordinary teacher, an ordinary scientific worker, and a Party member.”

Yu said that she will continue to devote herself to scientific and technological innovation, making new contributions for the country.

 

Source: Xinhua

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