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The following is the Ten new records of Science in 2020 recommended by recordtrend.com. And this article belongs to the classification: Life data.
Beijing time on December 31 news, according to foreign media reports, 2020 is a year full of record scientific discoveries. Some scientific discoveries have won the “oldest” title, including 7 billion year old Stardust – possibly the oldest material found on earth, and 31000 year old tombs containing the oldest identical twins ever found.
Other scientific discoveries, such as a bird flying for 11 days from Alaska to New Zealand, and a lightning bolt more than 440 miles (700 kilometers) long, won the title of “longest”. Here are the top 10 scientific breakthroughs in 2020:
1. The longest flying bird
The spotted tailed snipe is a famous aviator who can fly thousands of miles without interruption.
This autumn, a dark red long beaked bird broke the world record for the longest flying distance without interruption. On September 16, 2020, a male spotted tailed snipe (marked “4bbrw”) set out from southern Alaska for 11 consecutive days and finally arrived in New Zealand, with a total flight distance of 7581 miles (12200 km) rounded off. The previous world record for the longest flying distance without interruption is also a snipe, but a female. In 2007, she flew about 7145 miles (11500 kilometers) for nine consecutive days. The snipe is a famous aviator. Even so, 4bbrw’s long journey is still impressive.
2. The longest animal ever
Long tube jellyfish
While exploring deep-sea canyons off the coast of Australia, researchers discovered a super slender creature. According to the researchers, it may be “the longest animal ever found.”. This creature, called the long tube jellyfish, is about 150 feet (45 meters) long. In fact, it is made up of many small individuals called Hydrozoa. Each polyp is an independent individual, but it is closely connected with other polyps to form a complete long tube jellyfish.
3. The longest exposure photo
The photo shows the arc track formed by 2935 sunrise and sunset, and the shooting time span is 8 years and 1 month.
Since 2012, a beer can, photographic paper and low tech pinhole camera, a simple combination of devices, have been photographing the tracks left in the sky as the sun rises and sets every day. This is probably the longest exposure photo ever taken. Eight years ago, a student at the University of Hertfordshire built a simple camera and put it on the school’s Beverly bury telescope. Gradually, the student forgot all about the camera. “I didn’t intend to take a picture with such a long exposure, and I was surprised that the camera didn’t break all the time,” said Jana valkenberg, now a photographer at Barnett Southgate college Finally, this photo captured 2953 arcs of sunrise and sunset.
4. The biggest turtle ever
A large male (front) and a large female (left) are foraging (rendered)
This ancient tortoise, which lived 8 million years ago, may be the largest so far. Its shell is nearly 8 feet (2.4 meters) in diameter. The old tortoise is an extinct tortoise. They lived in northern South America during the Miocene (about 12 to 5 million years ago). This ancient turtle weighs about 2500 pounds (1145 kilograms). The Amazon giant cephalocephalic turtle, which lives in the Amazon River Basin, may be the closest living relative of the sea turtle. The weight of this ground turtle is 100 times that of the Amazon’s big head and neck turtle. This ancient turtle is twice the size of the largest living turtle, leatherback.
5. The oldest identical twins
The tomb of the identical twins was unearthed in Krems wachtberg, Austria
Archaeologists found a 31000 year old oval tomb with identical twins buried in the graves site in Krems wachtberg, Austria. The twins may be the oldest known identical twins in the world. The tomb was unearthed in 2005; but in a new study, researchers analyzed the ancient DNA of two babies and confirmed that they were identical twins and most likely related to another 3-month-old baby found in a nearby grave. According to the study, one of the identical twins died shortly after birth, while the other lived about 50 days.
6. The oldest sperm
Mating restoration of myanmarcypris Hui (male on left, female on right)
Scientists have discovered the world’s oldest known sperm in a round amber found in a mine in northern Myanmar. This little amber trapped 39 tiny ostracods, a crustacean. Of the 39 ostracods, 31 belong to a newly discovered species, now known as “myanmarcypris Hui”. In an adult female M. In the body of Hui ostracod, researchers found four eggs and a spaghetti like mass. It turns out that this mass is a sperm from 100 million years ago. Before that, the oldest known sperm can be traced back to about 50 million years ago, from a fossil insect cocoon found in Antarctica.
7. The oldest material on earth
Some of the dust rich egg like particles found in the chimmerson Nebula may be similar to those found in the pre meteorite explosion
Scientists discovered 7 billion years ago stardust in the huge meteorite that hit the earth half a century ago. This is the oldest known material on earth. This ancient dust, made up of particles older than our sun, enters the universe through dying stars. The dust eventually came to earth through the Murchison meteorite, which fell to Australia in 1969. This is also the first time that researchers have found pre solar particles in rocks on earth. In the new study, the researchers analyzed particles from the Murchison meteorite. They crushed the particles and added acids to dissolve minerals and silicates, leaving only the pre solar particles.
8. Fastest sound speed
How fast does sound travel? Scientists have found the fastest possible speed of sound: 22 miles per second. According to the different media, the speed of sound transmission will also change. For example, sound travels faster in hotter liquids than in colder liquids; it also travels at different speeds in solids, liquids, and air. Calculations show that sound travels fastest among the lowest mass atoms. So to figure out how fast sound travels, a team of researchers calculated the speed at which sound travels through solid hydrogen atoms. Hydrogen is the lowest mass atom, but it only becomes solid at a pressure of one million times the earth’s atmospheric pressure. In this extreme condition, the researchers found that the speed of sound propagation is close to its theoretical limit of 127460 km / h.
9. The longest lightning
On Halloween 2018, a huge flash of lightning split the sky above Brazil in two. According to an analysis report released by the World Meteorological Organization in June, the “super lightning” is 440 miles (700 kilometers) long, stretching from the Atlantic coast to the edge of Argentina, and is the longest lightning on record. Scientists using the latest satellite technology confirmed that the length of the lightning is more than twice the previous record holder. The last recorded longest flash occurred over Oklahoma in 2007. But scientists point out that lightning is not really getting longer, it’s just that our technology for monitoring lightning is becoming more and more advanced. The new study also shows that the longest single lightning occurred over northern Argentina in March 2019, lasting nearly 17 seconds.
10. The oldest intestines ever
The ancient cloudinomorph, the red part of which is the intestine of the creature (rendering)
Scientists have discovered ancient intestinal fossils in Nai County, Nevada, about 550 million to 539 million years ago, which is the oldest digestive tract residue found so far. The owner of the newly discovered intestinal fossils is a small tubular organism called “cloudinomorph”. Xinhua stone is 30 million years earlier than the previous record holder. These intestinal fossils can help scientists understand this mysterious creature called “cloudinomorph”. The mainstream hypothesis is that cloudinomorph is either coelenterate similar to modern coral or annelide similar to modern tubular worm. According to the analysis, the soft tissue that looks very much like the intestine looks like a tube, which may be more supportive of the worm hypothesis, the scientists said.
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