Every year, scientists do some really mysterious experiments, and 2021 was no exception. From growing mini-brain with your own eyes on a Petri dish to resurrecting a 24,000-year-old self-replicating zombie from the Siberian permafrost, this is an absolutely bizarre scientific experiment of the year.
A miniature human brain that grows with your own eyes
In August, a group of scientists released equally fascinating and horrifying news when they announced that they had succeeded in growing a small human brain in the laboratory with their own eyes. They transform stem cells into nervous tissue and stimulate them with chemical signals to form a small rudimentary “optic cup” filled with light-sensitive cells, in a Kronenberg-like manner called organoids. I made a mini brain.
We thank our collective sanity and the mini-brain itself, but small organoids do not have enough nerve density to be conscious. Petri dish. However, they are incredibly useful structures for studying brain development and creating treatments for retinal disorders that potentially cause blindness-what researchers want to study.
Find that the crow understands the concept of zero
If the last entry, Kronenberg’s body horror, didn’t move you, this year scientists unveiled an experiment along Hitchcock’s classic horror movie “The Birds”-Crows Understand the Concept of Zero. Proved to be smart enough to do. On the surface, the concept of zero, developed by human society somewhere in the 5th century C.E., requires abstract thinking.So the June paper is Neuroscience journal Crows not only chose zero as different from other numbers, but also revealed that it is easier to associate with a number of ones than a higher number.
Scanning of bird brain activity during the experiment showed that crows have neurons specially tuned to understand null numbers, but because they hijack those brain cells (of course to hijack the world). What it is used for (other than potentially planning) is a mystery. Scientists were surprised that both human and crow brains could calculate zero, even though they shared their last common ancestor with birds long before the dinosaurs went extinct. This shows that evolution takes multiple routes to create a brain with the same high level of function.
Understand why Brazil nuts rise to the top of the bag
In April, researchers finally found the answer to one of humanity’s most pressing questions. Why do Brazil nuts go up to the top of the bag?The mystery of nuts was solved by shaking the mixture Peanuts Place the brazil nuts down and do a 3DX line scan of the bag each time you shake it. If you shake it continuously, the big nut will eventually move vertically, and then each time you shake it, the nut will turn upward. Scientists believe their research will help engineers design better ways to prevent size separations from occurring in other mixtures.
read more: “Brazil nut puzzle” cracked by researchers
Creation of mutant “Daddy Short Leg”
By turning off certain genes in Daddy long leg, Scientists have created a “daddy short leg” version of dysgenesis — but why? Researchers wanted to reveal the secret behind the body plan by shortening the legs of the famous spider, and a unique way of moving, walking with three legs and swinging the longest leg. rice field.
After fine-tuning the genes, the legs of the stunted daddy’s short legs changed not only in size but also in shape. They transformed into short food-manipulating appendages called pedipals. This gave scientists a glimpse into the past of the kind of creatures that Dad’s long legs could have evolved from 400 million years ago. And this is not the last mutant spider that scientists want to make. They also plan to mutate spider fangs to gather similar insights into their evolution.
read more: Mutant “Daddy Short Leg” created in the lab
From ancient times to the 17th century, alchemists were obsessed with the philosopher’s stone. The Philosopher’s Stone is a mythical substance that has the power to transmutate. Lead Into gold.. In July, scientists reported an experiment that was a bit like the legendary process. In just a few seconds, we were able to turn the water into a shiny golden metal.Researchers achieved this by mixing with water sodium When potassium — A metal that provides extra electrons to water. Therefore, it makes the electrons of water a metal that wanders freely. The simple metallic waters they created could provide scientists with some important insights into the planet’s high-pressure heart.
Inventing a time crystal in another world
In July, researchers working with Google revealed that they created a time crystal at the heart of Sycamore, a high-tech giant quantum computer.The crystal was completely new Phase of matter Researchers Second law of thermodynamics, Entropy, or system disorder should always be increased. Unlike other systems where entropy increases over time, the entropy of time crystals did not increase no matter how many times the laser pulsed. What is really remarkable about strange quantum crystals is that they are the first objects to break the fundamental symmetry of the universe called discrete-time transformation symmetry.Scientists want to test boundaries using crystals from another world Quantum mechanics — Strange rules that dominate a very small world.
Revive 24,000-year-old zombies from Russia’s permafrost
If you find groups of frozen Pleistocene zombies in the permafrost of Siberia, resurrection and cloning of them is probably not at the top of your agenda.But that’s exactly what scientists explained in a June paper published in the journal. Current biology.. Thankfully, these zombies are small multicellular organisms called the Bdelloidea, rather than the chambre and fictional brain-eating people popularized by George Romero.When thawed, the small creatures began asexual reproduction through a process called parthenogenesis, creating the perfect one. clone Of my own. Surprisingly, analysis of the soil around the creatures showed that they had been frozen for 24,000 years and survived by putting themselves in a protected resting state called cryptobiosis. Scientists want to study this clever trick to better understand cryopreservation and how it can be adapted to humans.
Drill the deepest ocean borehole ever in the Pacific Ocean
In May, scientists working off the coast of Japan used an elongated drill called a giant piston coraler to drill a five-mile (8,000-meter) hole in the bottom of the Japan Trench. Scientists then extracted a 120-foot (37 m) long sediment core from the seafloor and carried it to the ship. Researchers were looking for clues to the history of earthquakes in the region and wanted to look at the core of the sediment. The excavation site is very close to the epicenter of the 9.1 magnitude Tohoku earthquake. The 2011 earthquake crashed into the Fukushima Daiichi nuclear power plant and caused a huge tsunami that caused a catastrophic collapse.
Release the “Russian Doll” set of parasites that burst the stomach
July study published in the journal Molecular biology It has already been revealed that strange past studies have produced even stranger unintended consequences. Decades ago, Finnish scientist Ilkkahanski introduced Granville Leopard to the remote islands of Sottunga to study how a population of one species inhabiting harsh habitats can survive. I planned. He knew little, butterflies harbored stomach-rupturing parasitoid wasp seeds, and those bees also carried their own, smaller, stomach-rupturing parasites — parasitoids themselves. Mallet. When a butterfly was released in Sottunga, a bee erupted and spread throughout the island with the host. This experiment not only provided fascinating ecological research to later scientists, but also understood the ecological web that forms around endangered species before introducing them into new environments. It also provided a clear warning that it should be done.
Growth of magic mushrooms in the blood with unwise injections
Well, this wasn’t done by scientists, but it’s one of the weirdest amateur experiments I’ve heard this year. January study Consultation Academy Journal-Liaison Psychiatry It was revealed that a man who brewed “Magic Mushroom” tea and injected it into his body arrived at the emergency room. fungus Growing up with his blood.After injection Psilocybin Tea, which wanted to relieve the symptoms of bipolar disorder and opioid addiction, soon became lethargic, yellowed skin, and began hematemesis. The man survived, but had to take antibiotics and antifungal drugs to remove the psychotropic drug from the bloodstream. He also had to be on the respiratory tract. More and more research has shown that psilocybin, a psychoactive compound contained in magic mushrooms, depression, anxiety And substance abuse — but only when taken safely.
Originally published on Live Science.
10 of the weirdest experiments in 2021
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