Beijing time on December 25, according tomedia reports, at present, the United States Life Science website selected the top ten most exotic scientific research in 2019, including:
1. Search for Loch Ness Monster
According to folklore, the mysterious water monster has lived in Loch Ness, Scotland, for more than 1,000 years, but a study this year showed that no “monster DNA” has been found in Loch Ness so far, with geneticists extracting more than 250 water samples from the huge lake and detecting fragments of DNA floating in each of them. The lake was found to have more than 3,000 genetic traces of species, including a variety of fish, deer, pigs, bacteria and humans, but they found no evidence of large reptiles or aquatic dinosaurs in the lake, or even giant mackerel or mackerel that could be mistaken for a mysterious lake monster. Is the so-called Loch Ness monster some kind of extra-long eel? For the present evidence, this possibility is very low.
2, “feces knife”
Many scholars are familiar with a story about the Inuit: he was trapped in a storm, frozen his own faeces into a knife, and slaughtered a dog with it, although the story is a frequent anecdote by anthropologists, no one has ever tried to make a knife out of frozen faeces. It wasn’t until 2018 that a group of researchers began to experiment with this bold idea, with study lead author Metin Eren using an eight-day “Arctic recipe” as a raw material for making faeces, which then froze the feces and used metal tools to make it into blades. But when they tried to cut the pig’s skin with the feces knife, the blade left only brown marks (melted feces) on the skin, and Mr Metin said experiments had shown that the idea of freezing their faeces to make a knife was untenable.
3. Plants that eat slugs
The carnivorous Northern Pig Cage, which is able to trap careless insects in its spherical leaves and gradually digest the insect’s nutrients, was surprised to find that pig cage grass can swallow the herb in early 2019, and a team of Ontario researchers collected hundreds of pig cage grass samples in a park in Algonquin province. It was found that about 20% of the plants had at least one small dragonfly, and some of the plants had captured several amphibians at the same time, some of them had been trapled and drowned, some of them starved to death, and once they died, their body tissues would rot for about 10 days, and these greedy plants would swallow 5% of the small moths in the swamp area each year.
4. The tongue has the sense of smell of the nose
No, that doesn’t mean people should bend over and lick flowers, but our sense of taste and smell may be more controversial than thought, and in a study published in April 2019, scientists in a lab-grown study found that human taste cells were exposed to odor molecules and found that they responded to odors in the nasal cavity in the same way as olfactory cells in the nasal cavity. When odor molecules come into contact with taste cells, chemicals enter the cell surface receptors. The interaction between odors and receptors in the body usually triggers a chain reaction within the cell, sending a message to the brain.
5. Blood-sucking trees absorb nutrients from neighbor stumps
Deep in the New Zealand forest, a humble stump clings to the roots of a nearby conifer tree, absorbing hard-won water and nutrients like a vampire, and scientists stumble upon the blood-sucking tree while hiking in New Zealand, surrounded by hundreds of New Zealand pine trees, a conifer tree up to 50 metres high. Usually during the day, the towering New Zealand pine sprigs inject moisture from the roots of the tree, and at night, the vampire-like low stumps suck the remaining moisture and nutrients from the roots of the adjacent New Zealand pine trees to their roots, perhaps we should not study the trees as individuals, but forests as a super-organism.
6, make the sound of water vaporization
If a scientist fires an X-ray laser into a stream of water, does it make a sound? Yes, in 2019, researchers will create perhaps the loudest underwater sound. In the vacuum chamber, the pulsed beam of the X-ray laser collides with a very thin water jet, instantly dividing the jet into two and evaporating the liquid water on both sides. The pressure wave spreads from the point of contact and emits a sound of 270 decibels.
7. Can black holes evaporate?
Stephen Hawking, a renowned theoretical physicist and cosmologist, predicted that black holes not only suck objects into their depths, but also send particles into space. He built a theory that these particles slowly stripped the mass and energy of the black hole until it eventually disappeared, but physicists never thought they would prove it.
In 2019, a team of researchers sent out this elusive Hawking radiation in laboratory tests, creating a “waterfall” from a very cold stream of gas to simulate the black hole’s horizon, the invisible boundary that nothing can escape. How a quantum sound wave injected into a nearby “stream” may flow out of a waterfall, but the sound waves in the waterfall are captured by streams, and escaping sound waves can be seen as similar to light particles escaping from a black hole, suggesting that Hawking’s theory is correct.
8. Mosquitoes don’t like Schirex music.
In March 2019, a new study showed that female mosquitoes didn’t like Schirex rock music, and researchers conducted a special experiment to test that female mosquitoes listened to the 10-minute Schirex-type song “Terrible Monsters and Cute Elves” and found that they had significantly reduced blood-sucking and mating times. It is understood that the purpose of the experiment is to find out whether noise music can be used as an “environmentally friendly” alternative to pesticides to control behaviour. The team says loud rock music may have distracted mosquitoes, making it impossible to find nearby food sources and potential mating mates.
In 2019, physicists may discover a strange particle, the odd particle, a particle that would not have existed, and particles such as electrons and protons that may remain around for a long time, while quasi-particles may emerge. In the 1970s, scientists first predicted the presence of quasi-particles, which they believe appeared when tiny particles called quarks were released in odd numbers during intense collisions between protons and antiprotons. Researchers have recreated the idea of colliding particles on large Hadron collides with each other. The team found that there were some strange differences between protons compared to antiprotons, and the presence of quasi-particles may explain the difference.
10. The Mystery of Europe’s Uncracked
Oobleck is a non-Newtonian fluid that is not easily divided into solids or liquids, a unique viscous substance that flows like a liquid, and when you touch it gently with your hand, it is silky and soft, and when you hit it quickly, it collides on a frozen piece of meat. In fact, The European break is a special substance made from the blend of corn starch and water. With the help of a new computer model, it is possible to predict how the strange substance will respond to various forces. Scientists used the model to simulate the reaction of Europtos being squeezed between two plates, hit by aerial parabola or crushed by virtual wheels, hoping to find innovative uses for the substance, such as temporarily filling dangerous pits on major roads. (Ye Ding Cheng)