【推荐1】On the morning of Nov. 24, China made history by starting the world’s first lunar return mission(月球返回任务)of the past 44 years. On that day, a Long March 5 rocket was sent into space by carrying the Chang’e 5. The mission lasted for 23 days and it is special for several reasons.

A return mission

Chang’e 5 marked China’s first take off from the moon to carry samples(标本)back. This success shows China has mastered the technology for travelling between the Earth and the Moon, which also will help with China’s future space research. The last lunar sample return mission was Luna 24 of the former Soviet Union(苏联)in 1976.

Larger samples

Chang’e 5 collected 1,731g of lunar samples, while the former Soviet Union sent back only 330g. “These samples will be a treasure,” said a US Professor Jolliff, “My hat is off to Chinese scientists for completing a very difficult mission.”

A new landing site

Chang’e 5’s lunar landing site is known as the Ocean of Storms. It’s on the near side of the moon. No probes( 探测器 )have visited that place before. The samples collected here provide the youngest ones ever tested: just 1.2 billion years old. Samples from the U.S. and the former Soviet Union landing sites are more than 3 billion years old, scientists say.

【推荐2】Jackson Robotics invents 3 best robots for kids. They can do different things and meet your different needs.

【推荐3】①Do you know digital pickled vegetables? Recently, this new type of pickle (榨菜) is being discussed. It refers to the videos people watch while eating. Many people think that the videos can make their food more appetizing (有食欲的), just like a spoonful of pickles sometimes making a meal taste much better.

②The topic received more than 16 million clicks on Sina Weibo and about 100, 000 people joined in the discussion. Instead of having meals with friends and family members, many young people in China are kept company by TV shows or short videos. Many believe that their food is tastier with the “digital pickles”.

③Can this habit affect your diet? According to a research paper published in 2019, you may eat more without knowing it. The international research team asked 62 volunteers to follow different eating patterns on four different days. The patterns included eating while looking at the mobile phone, reading magazines and without distraction (干扰). After analyzing (分析) their diets, the team discovered that eating with a distraction increased caloric ingestion (卡路里摄入) by about 15 percent.

④To find out the reason, the team also invited two groups of people: one group ate while listening to an audio clip (音频剪辑) about another person eating and the other listened to a clip that helped them imagine themselves eating. The results showed that the second group ate less since they were more focused on their meals. When we eat with the “digital pickles”, our attention can be distracted, which leads to eating more than expected.

⑤Not only videos and audios but also other tasks can work as digital pickles. A research project led by the University of Sussex, UK, pointed out that activities which require lots of attention trick many participants into overeating. The team invited 120 participants to do various tasks while providing them with drinks and snacks. “Our study suggests that if you’re eating or drinking while your attention is distracted by a highly engaging task, you’re less likely to be able to tell how full you feel,” one of the authors Martin Yeomans explained.

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