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2020-01-08 00:09   来源:  www.kenclickrich.com   评论:0 点击:



Sina science and technology news beijing time january 3 news, according to foreign media reports, year after year, science will never stop moving forward, constantly give us inspiration, we feel surprised and awe. Some of the findings may surprise us:\" Do we really need to know that?\" Next, we will introduce you to the 14 strangest scientific findings of 2019.


Food is destined not to last long in our bodies, for the waste it produces always finds an outlet for excretion. But for jellyfish, the anus seems dispensable. Previous studies have suggested that there is a permanent excretion center in the matrix. But researchers at the marine biology laboratory in woodshall, massachusetts, last year found that the openings at the end of the alimentary tract appear and disappear regularly, making it the only creature known to have a \"hidden\" anus. Further research may help us find out why other organisms have evolved permanent anus.


It is well known that smell is closely related to taste. A large part of the complex taste information analyzed by the brain comes from the smell of food. But when researchers at the United States'Monnell Chemical Sensory Center cultivated human taste bud cells in the laboratory and exposed them to smell molecules, they were surprised to find that they produced the same reaction as olfactory cells in the nasal cavity. While it's the first time scientists have discovered olfactory receptors in human taste bud cells, olfactory responses have been found in a number of bizarre human parts, such as the gut, sperm cells, and even hair.


When a chinese patient complained to a doctor that \"something seems to be crawling\" in his right ear, the doctor had no idea he would find a spider in his ear canal. The spider formed a web near the tympanic membrane, covering the patient's entire ear canal and living quite comfortably inside. The doctor tried to clip the spider out with tweezers but failed and eventually had to flush it out with normal saline. The scene was horrific, but the patient was safe.

  如果你看过《银河系漫游指南》,你一定对“42”这个数字很熟悉:它是生命、宇宙与万物的终极答案。但我们不知道对应的问题究竟是什么。不过就在去年,数学家找到了一个可能套得上的问题。此次研究结果来自著名难题“丢番图方程”,即能否将1到100之间的每一个整数都表达为三个整数的立方和。古代数学家丢番图曾在1800年前提出过一个类似的难题。如今,1到100之间的大多数整数都已经找到了对应的解,但42的整数解却动用了全球50万台计算机,尝试了无数种可能的解法,最后发现其整数解为(-80538738812075974)^3 (80435758145817515)^3 (12602123297335631)^3=42。怎么样,这个答案是不是令人心满意足呢?

If you've seen the Milky Way Walking Guide, you must be familiar with the number 42: it's the ultimate answer to life, the universe, and everything. But we don't know what the problem is. But just last year, mathematicians found a possible problem. The results of the study come from the famous puzzle,\" the topaz equation \", which is whether each integer between 1 and 100 can be expressed as a cubic sum of three integers. Almost 1800 years ago, a similar puzzle was raised by the ancient mathematician. Today, most of the integers between 1 and 100 have found their corresponding solutions, but the integer solution of 42 employs 500,000 computers worldwide and attempts numerous possible solutions. Finally, it is found that its integer solution is (-80538738812075974)^3(80435758145817515)^3(12602123297335631)^3=42. What, is the answer satisfactory?


The police station near your house may get a few big ones from time to time, but there may be no more bizarre one. On August 21,2019, a scientific equipment weighing about 740 kilograms on the bottom of the Baltic Sea in northern Germany was stolen. The equipment was operated by the Helmholtz Marine Research Centre in Germany, where data on the seabed environment were being collected and the signal suddenly disappeared. The researchers initially thought it was a signal transmission problem. But when the diver went down to check the situation, he found that the whole station was missing, leaving only a cut off cable. The center noted that storms, waves and large marine animals couldn't move the station, adding that stolen data was \"priceless.\"


Bag salad is a great invention of modern convenience life. But in a study published in 2019, researchers noted that shoppers have found unpleasant \"add-ons\" such as frogs, lizards, mice and even bats in bagged salads on multiple occasions since 2003. There were 40 such incidents in 20 states. The small animals in the bag were even alive when 10 of the incidents occurred. Further observations need to be made to find out when and how the animals got into the salad bag and what steps were taken to avoid such incidents.


The “Plane Earth International Symposium (FEIC) plans to sail to the edge of the Earth in 2020 to find ice walls to stop the outflow of water. The ancient Greeks proved that the earth was a sphere more than 2000 years ago, but some highly imaginative people still believed that the earth was a disk, the north pole in the center, surrounded by ice walls. I don't know how these proponents navigate along the way, since gns relies on a network of dozens of satellites around the earth. If the earth were really flat, it would take only three satellites to determine the position of any point on the surface.


In April 2019, NASA sponsored a report in the journal Astrobiology that in the future, we may need to pay special attention to looking for spaghetti-like strip structures because there are similar structures at the edges of some of the hot springs on Earth, partly made by microbes. In the Mammoth Hot Springs area of Yellowstone Park in the United States, water temperatures range between 65 and 72 degrees Celsius, ranging in pH. The thermophilic microbes here convert calcium carbonate into a long, sticky, spaghetti-like structure. If we've found similar structures on other planets, it could be evidence of extraterrestrial microbes.


A four-year-old chihuahua from the southern English seaside town of Penntown was reportedly taken away by a seagull while \"thinking about the dog's birth\" in his garden. While this may sound strange, it is not impossible. Some birds are omnivorous and food includes fish, invertebrates, vegetables, discarded human food, and sometimes small mammals such as mice, moles, and even rabbits. But chihuahuas don't have to be particularly worried because they are highly likely to be attacked by seagulls.


Scientists have discovered a rare twin-headed juvenile rattlesnake in a forested area southwest of Sanzawa. This kind of double-headed animal is difficult to live to adulthood in wild conditions. So the two scientists who found it took it back and gave it careful feeding and care. According to scientists, the snake appears to be more dominant on the right side of the head, but the left side of the head occasionally wants to \"go the other way.\"


The next time someone says you have \"no brain,\" take it as a compliment. The study found that even simple single-cell organisms such as the rose hornworm could carry out complex decision-making processes. In the face of stimuli, the horn-like single-celled creature uses a variety of tactics to solve the problem, such as bypassing the irritants, trying to push them away with cilia, shrinking the body to avoid them, and slipping away when there is nothing to do. Instead of following simple preset instructions, they are able to \"transform thinking \", suggesting that this single-celled creature is far more sophisticated than we think.


To ensure that there are no harmful creatures on the moon, Apollo scientists have fed moon rocks to cockroaches, goldfish and mice. Charles Berry, who led the Apollo mission's medical team, explained in 1999:\" We have to prove that lunar matter doesn't pollute not only humans but also fish, birds, animals, plants, and anything you can think of.\" After its first manned mission to the moon, the Apollo 11 mission, NASA produced its own collection of moon rock samples that brought several representative species into contact: Japanese quail, several common species of fish representing birds, brown shrimp and oysters representing crustaceans, German cockroaches and houseflies representing insects, and even several thriving plants grown in lunar soil. Astronauts on the Apollo 11 mission also experienced three weeks of isolation after completing the mission. No lunar microbes were found.


An anthropologist told the story in a report published in the 1990s that an Inuit man used his frozen-hard feces to make a knife and then used it to kill a dog and make a set of sleds with the dog's ribs, riding it away in the night. But as it turns out, it's probably just a joke the Inuit made up to cajole anthropologists. To gauge the truth of the story, researchers at kent state university in ohio followed the arctic's diet for eight days, consuming a lot of protein and fatty acids, then cooling their droppings to minus 50 degrees celsius, making them blade-shaped and keeping them frozen with dry ice. These fecal blades are very hard, but don't cut meat at all, leaving only crayon-like brown marks on the meat.


The Drakes Beach, just north of San Francisco, had a winter wonder last month: Thousands of \"penis fish\" had \"overrun\" on the beach. You might want to ask, why would a good fish call that name? It's probably about their shape and length. The creature is actually a sea worm native to the Pacific coast between southern Oregon and Mexico. They typically drill holes in the sand, making tunnel-like underpasses in which they take shelter and feed. But in the event of a storm, their cozy homes will be destroyed, leaving them nowhere to go and left on the beach. (Leaves)