Daily Jun sent from Oufei Temple
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Big Karma good, crazy Thursday is here again, is there any kind person invite the daily newspaper to eat...?
Just kidding ~ Anyway, more interesting scientific and technological anecdotes I will give you!
Big news today
The official response xiamen gave the fish nucleic acid
Fish also want to do nucleic acid? Don't believe you see --
These fish mainly come from the waters of Xiamen, and related topics have aroused heated discussion among netizens.
At present, some staff responded to this: At present, all the nucleic acids in Xiamen City, when fishermen go ashore, they must carry out "people + things" inspection; So there is the scene of making nucleic acid for fish.
In fact, it is not necessary to give nucleic acid to every fish caught, just random spot checks; Otherwise the amount of work is too large...
According to an announcement previously issued by the Xiamen Jimei District Committee, since June this year, there have been a number of accidents in Zhangzhou, Pingtan and other places in Fujian Province, where "fishermen illegally trade with overseas ships at sea, resulting in the import of the new crown virus from the sea", causing great social harm.
Recently, fishing in Xiamen waters has officially opened, and officials have had to take some stricter measures.
Researchers decipher the chemical equations of ancient Chinese bronzes
According to Nature News, British Museum researcher Liu Ruiliang and his team found that the two materials of "gold" and "tin" in the ancient Chinese bronze recipe contained in the "Record of KaoGong" are likely copper-lead alloys and tin-lead alloys.
The 2,300-year-old Kao Gong Ji is the world's oldest technical encyclopedia, which records the methods of manufacturing a large number of objects.
However, the true composition of the "gold" and "tin" in the recipe contained in the Book of Examination has not been determined:
The ancients generally believed that "gold" refers to copper or copper alloy, and "tin" refers to tin; However, chemical analysis of ancient bronzes shows that "gold" and "tin" cannot simply refer to copper and tin.
Liu Ruiliang's team analyzed the relevant data on the chemical composition of the knife coins, and the age of the coin was minted coincided with the age recorded in the bronze recipe, and they thought that they could infer the composition of the bronze formula.
The results showed that the coins were made from a prefabricated alloy mixed with lead.
Modern pesticides can damage bee brains, making it impossible for them to move in a straight line
Has this bee learned to play acrobatics? No, it's actually this poor little creature with a broken brain.
The researchers hung the bees on a tracking ball, recorded their walking movements in real time, and sent these movements to a computer for analysis.
The results showed that some commonly used modern insecticides can damage the brains of bees, impairing their visually guided behavior, causing them to be unable to move in a straight line.
Dr. Rachel H Parkinson of the University of Oxford, the first paper on the study, said:
At present, new nicotinic pesticides are causing large-scale adverse effects on beneficial insects such as bees, which urgently needs to be paid attention to and properly handled.
The scientists successfully changed the blood group of 3 human kidneys
Scientists have successfully changed the blood type of 3 human kidneys, changing it from B type blood to "universal" type O blood.
The experiment was led by a team of researchers at the University of Cambridge in the United Kingdom, who used kidneys donated by 3 deceased people.
Researchers use machines to continuously pump blood into the kidneys to keep the organs alive; At the same time, a special enzyme is added to the blood, which is able to remove antigens from the surface of red blood cells and vascular endothelial cells.
After a few hours, something magical happened: the blood in the kidneys successfully turned into type O blood.
Next, the research team will look at how this approach can be applied clinically. The researchers hope that the results will help future kidney transplants to get rid of blood type restrictions.
Saudi Arabia sentenced a female PhD to 34 years in prison for retweeting tweets
Let's look at what's going on here in Saudi Arabia —
Salma Shehab, a PhD student at the University of Leeds in the United Kingdom, shared posts on social networking sites supporting women's right to drive before being detained while returning to Saudi Arabia for leave.
Initially, Shehab was sentenced to 6 years in prison for using social media to "disturb public order, undermine national security and stability."
Now, according to the Washington Post, Saudi prosecutors have advocated harsher penalties under Saudi cybercrime and counterterrorism laws in their appeals, eventually increasing the sentence imposed on August 8 to 34 years.
(It's 2022 ah... ）
It is reported that this is the longest known sentence in Saudi Arabia to give women's rights activists.
— Ends —
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