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Tina Michelle Maher
Född i United States
27 years
248758
Ljus
05/04/2025
Randysmuct
Randysmuct
<a href=https://expertperevod.ru/>срочный нотариальный перевод москва</a> Услуги перевода языков Москва: Прозрачность – залог успеха Убедитесь, что бюро переводов предоставляет прозрачные условия сотрудничества, включая четкое ценообразование и сроки выполнения.
05/04/2025
TommieNit
TommieNit
‘dyson spheres’ were theorized as a way to detect alien life. scientists say they’ve found potential evidence
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what would be the ultimate solution to the energy problems of an advanced civilization? renowned british american physicist freeman dyson theorized it would be a shell made up of mirrors or solar panels that completely surrounds a star — harnessing all the energy it produces.
“one should expect that, within a few thousand years of its entering the stage of industrial development, any intelligent species should be found occupying an artificial biosphere which completely surrounds its parent star,” wrote dyson in a 1960 paper in which he first explained the concept
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if it sounds like science fiction, that’s because it is: dyson took the idea from olaf stapledon’s 1937 novel “star maker,” and he was always open about that. the late scientist was a professor emeritus at the institute of advanced study in princeton, new jersey.
still, coming from a thinker who some in the scientific community say might have been worthy of a nobel prize early in his career, the concept took hold and the hypothetical megastructures became known as dyson spheres, even though the physicist later clarified that they would actually consist of “a loose collection or swarm of objects traveling on independent orbits around the star.”
in his paper, dyson also noted that dyson spheres would give off waste heat detectable as infrared radiation, and suggested that looking for that byproduct would be a viable method for searching for extraterrestrial life. however, he added that infrared radiation by itself would not necessarily mean extraterrestrial intelligence, and that one of the strongest reasons for searching for such sources was that new types of natural astronomical objects might be discovered.
“scientists (at the time) were largely receptive, not to the likelihood that alien civilisations would be found to exist, but that a search for waste heat would be a good place to look,” said george dyson, a technology writer and author and the second of dyson’s six children, via email. “science fiction, from ‘footfall’ to ‘star trek,’ took the idea and ran with it, while social critics adopted the dyson sphere as a vehicle for questioning the wisdom of unlimited technological growth.”
05/04/2025
VictorChafe
VictorChafe
Water and life
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lightning is a dramatic display of electrical power, but it is also sporadic and unpredictable. even on a volatile earth billions of years ago, lightning may have been too infrequent to produce amino acids in quantities sufficient for life — a fact that has cast doubt on such theories in the past, zare said.
water spray, however, would have been more common than lightning. a more likely scenario is that mist-generated microlightning constantly zapped amino acids into existence from pools and puddles, where the molecules could accumulate and form more complex molecules, eventually leading to the evolution of life.
“microdischarges between obviously charged water microdroplets make all the organic molecules observed previously in the miller-urey experiment,” zare said. “we propose that this is a new mechanism for the prebiotic synthesis of molecules that constitute the building blocks of life.”
however, even with the new findings about microlightning, questions remain about life’s origins, he added. while some scientists support the notion of electrically charged beginnings for life’s earliest building blocks, an alternative abiogenesis hypothesis proposes that earth’s first amino acids were cooked up around hydrothermal vents on the seafloor, produced by a combination of seawater, hydrogen-rich fluids and extreme pressure.
yet another hypothesis suggests that organic molecules didn’t originate on earth at all. rather, they formed in space and were carried here by comets or fragments of asteroids, a process known as panspermia.
“we still don’t know the answer to this question,” zare said. “but i think we’re closer to understanding something more about what could have happened.”
though the details of life’s origins on earth may never be fully explained, “this study provides another avenue for the formation of molecules crucial to the origin of life,” williams said. “water is a ubiquitous aspect of our world, giving rise to the moniker ‘blue marble’ to describe the earth from space. perhaps the falling of water, the most crucial element that sustains us, also played a greater role in the origin of life on earth than we previously recognized.”
05/04/2025
Larryblatt
Larryblatt
‘dyson spheres’ were theorized as a way to detect alien life. scientists say they’ve found potential evidence
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what would be the ultimate solution to the energy problems of an advanced civilization? renowned british american physicist freeman dyson theorized it would be a shell made up of mirrors or solar panels that completely surrounds a star — harnessing all the energy it produces.
“one should expect that, within a few thousand years of its entering the stage of industrial development, any intelligent species should be found occupying an artificial biosphere which completely surrounds its parent star,” wrote dyson in a 1960 paper in which he first explained the concept
https://kra31s.cc
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if it sounds like science fiction, that’s because it is: dyson took the idea from olaf stapledon’s 1937 novel “star maker,” and he was always open about that. the late scientist was a professor emeritus at the institute of advanced study in princeton, new jersey.
still, coming from a thinker who some in the scientific community say might have been worthy of a nobel prize early in his career, the concept took hold and the hypothetical megastructures became known as dyson spheres, even though the physicist later clarified that they would actually consist of “a loose collection or swarm of objects traveling on independent orbits around the star.”
in his paper, dyson also noted that dyson spheres would give off waste heat detectable as infrared radiation, and suggested that looking for that byproduct would be a viable method for searching for extraterrestrial life. however, he added that infrared radiation by itself would not necessarily mean extraterrestrial intelligence, and that one of the strongest reasons for searching for such sources was that new types of natural astronomical objects might be discovered.
“scientists (at the time) were largely receptive, not to the likelihood that alien civilisations would be found to exist, but that a search for waste heat would be a good place to look,” said george dyson, a technology writer and author and the second of dyson’s six children, via email. “science fiction, from ‘footfall’ to ‘star trek,’ took the idea and ran with it, while social critics adopted the dyson sphere as a vehicle for questioning the wisdom of unlimited technological growth.”
05/04/2025
Wileyperge
Wileyperge
‘dyson spheres’ were theorized as a way to detect alien life. scientists say they’ve found potential evidence
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what would be the ultimate solution to the energy problems of an advanced civilization? renowned british american physicist freeman dyson theorized it would be a shell made up of mirrors or solar panels that completely surrounds a star — harnessing all the energy it produces.
“one should expect that, within a few thousand years of its entering the stage of industrial development, any intelligent species should be found occupying an artificial biosphere which completely surrounds its parent star,” wrote dyson in a 1960 paper in which he first explained the concept
https://kra31s.cc
kraken зеркало
if it sounds like science fiction, that’s because it is: dyson took the idea from olaf stapledon’s 1937 novel “star maker,” and he was always open about that. the late scientist was a professor emeritus at the institute of advanced study in princeton, new jersey.
still, coming from a thinker who some in the scientific community say might have been worthy of a nobel prize early in his career, the concept took hold and the hypothetical megastructures became known as dyson spheres, even though the physicist later clarified that they would actually consist of “a loose collection or swarm of objects traveling on independent orbits around the star.”
in his paper, dyson also noted that dyson spheres would give off waste heat detectable as infrared radiation, and suggested that looking for that byproduct would be a viable method for searching for extraterrestrial life. however, he added that infrared radiation by itself would not necessarily mean extraterrestrial intelligence, and that one of the strongest reasons for searching for such sources was that new types of natural astronomical objects might be discovered.
“scientists (at the time) were largely receptive, not to the likelihood that alien civilisations would be found to exist, but that a search for waste heat would be a good place to look,” said george dyson, a technology writer and author and the second of dyson’s six children, via email. “science fiction, from ‘footfall’ to ‘star trek,’ took the idea and ran with it, while social critics adopted the dyson sphere as a vehicle for questioning the wisdom of unlimited technological growth.”
05/04/2025
Thomascrape
Thomascrape
Water and life
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lightning is a dramatic display of electrical power, but it is also sporadic and unpredictable. even on a volatile earth billions of years ago, lightning may have been too infrequent to produce amino acids in quantities sufficient for life — a fact that has cast doubt on such theories in the past, zare said.
water spray, however, would have been more common than lightning. a more likely scenario is that mist-generated microlightning constantly zapped amino acids into existence from pools and puddles, where the molecules could accumulate and form more complex molecules, eventually leading to the evolution of life.
“microdischarges between obviously charged water microdroplets make all the organic molecules observed previously in the miller-urey experiment,” zare said. “we propose that this is a new mechanism for the prebiotic synthesis of molecules that constitute the building blocks of life.”
however, even with the new findings about microlightning, questions remain about life’s origins, he added. while some scientists support the notion of electrically charged beginnings for life’s earliest building blocks, an alternative abiogenesis hypothesis proposes that earth’s first amino acids were cooked up around hydrothermal vents on the seafloor, produced by a combination of seawater, hydrogen-rich fluids and extreme pressure.
yet another hypothesis suggests that organic molecules didn’t originate on earth at all. rather, they formed in space and were carried here by comets or fragments of asteroids, a process known as panspermia.
“we still don’t know the answer to this question,” zare said. “but i think we’re closer to understanding something more about what could have happened.”
though the details of life’s origins on earth may never be fully explained, “this study provides another avenue for the formation of molecules crucial to the origin of life,” williams said. “water is a ubiquitous aspect of our world, giving rise to the moniker ‘blue marble’ to describe the earth from space. perhaps the falling of water, the most crucial element that sustains us, also played a greater role in the origin of life on earth than we previously recognized.”
05/04/2025
CarlosTon
CarlosTon
Water and life
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lightning is a dramatic display of electrical power, but it is also sporadic and unpredictable. even on a volatile earth billions of years ago, lightning may have been too infrequent to produce amino acids in quantities sufficient for life — a fact that has cast doubt on such theories in the past, zare said.
water spray, however, would have been more common than lightning. a more likely scenario is that mist-generated microlightning constantly zapped amino acids into existence from pools and puddles, where the molecules could accumulate and form more complex molecules, eventually leading to the evolution of life.
“microdischarges between obviously charged water microdroplets make all the organic molecules observed previously in the miller-urey experiment,” zare said. “we propose that this is a new mechanism for the prebiotic synthesis of molecules that constitute the building blocks of life.”
however, even with the new findings about microlightning, questions remain about life’s origins, he added. while some scientists support the notion of electrically charged beginnings for life’s earliest building blocks, an alternative abiogenesis hypothesis proposes that earth’s first amino acids were cooked up around hydrothermal vents on the seafloor, produced by a combination of seawater, hydrogen-rich fluids and extreme pressure.
yet another hypothesis suggests that organic molecules didn’t originate on earth at all. rather, they formed in space and were carried here by comets or fragments of asteroids, a process known as panspermia.
“we still don’t know the answer to this question,” zare said. “but i think we’re closer to understanding something more about what could have happened.”
though the details of life’s origins on earth may never be fully explained, “this study provides another avenue for the formation of molecules crucial to the origin of life,” williams said. “water is a ubiquitous aspect of our world, giving rise to the moniker ‘blue marble’ to describe the earth from space. perhaps the falling of water, the most crucial element that sustains us, also played a greater role in the origin of life on earth than we previously recognized.”
05/04/2025
MichaelSaw
MichaelSaw
Broken spheres
dyson died in 2020 before any of his spheres could be found — although they are just one of a dozen ideas that bear his name.
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“as a young scientist, dyson showed that three competing quantum theories were actually the same theory — he summarily ended the competition,” said william press, the leslie surginer professor of computer science and integrative biology at the university of texas at austin. he was not involved in the study. “later, he applied his genius to areas of astronomy, cosmology, the extraterrestrial realm, and also the very real problem of nuclear proliferation here on planet earth. at the time of his death, he was recognized as a provocative and creative thinker.”
george dyson also attested to his father’s fascination and comprehensive reach across disciplines.
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“taking advantage of a short attention span and an aversion to bureaucracy, he contributed to five fields of mathematics and eleven fields of physics, as well as to theoretical biology, engineering, operations research, literature, and public affairs,” the younger dyson said. “many of his ideas were controversial, with one of his guiding principles being that ‘it is better to be wrong than to be vague.’”
the approach of the researchers behind the new study could offer a more fruitful path in the search for extraterrestrial intelligence, said tomotsugu goto, an associate professor of astronomy at the national tsing hua university in taiwan. he also was not involved with the study.
“however, contamination by circumstellar debris disks, which mimic dyson sphere infrared signatures, remains a concern,” he added in an email. “authors argue that the debris disks around (dwarf stars) are rare, but the 7 candidate authors selected out of 5 million sources are also rare. despite this, the seven candidates warrant further investigation with powerful telescopes for a more definitive evaluation.”
05/04/2025
Donalddup
Donalddup
Water and life
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lightning is a dramatic display of electrical power, but it is also sporadic and unpredictable. even on a volatile earth billions of years ago, lightning may have been too infrequent to produce amino acids in quantities sufficient for life — a fact that has cast doubt on such theories in the past, zare said.
water spray, however, would have been more common than lightning. a more likely scenario is that mist-generated microlightning constantly zapped amino acids into existence from pools and puddles, where the molecules could accumulate and form more complex molecules, eventually leading to the evolution of life.
“microdischarges between obviously charged water microdroplets make all the organic molecules observed previously in the miller-urey experiment,” zare said. “we propose that this is a new mechanism for the prebiotic synthesis of molecules that constitute the building blocks of life.”
however, even with the new findings about microlightning, questions remain about life’s origins, he added. while some scientists support the notion of electrically charged beginnings for life’s earliest building blocks, an alternative abiogenesis hypothesis proposes that earth’s first amino acids were cooked up around hydrothermal vents on the seafloor, produced by a combination of seawater, hydrogen-rich fluids and extreme pressure.
yet another hypothesis suggests that organic molecules didn’t originate on earth at all. rather, they formed in space and were carried here by comets or fragments of asteroids, a process known as panspermia.
“we still don’t know the answer to this question,” zare said. “but i think we’re closer to understanding something more about what could have happened.”
though the details of life’s origins on earth may never be fully explained, “this study provides another avenue for the formation of molecules crucial to the origin of life,” williams said. “water is a ubiquitous aspect of our world, giving rise to the moniker ‘blue marble’ to describe the earth from space. perhaps the falling of water, the most crucial element that sustains us, also played a greater role in the origin of life on earth than we previously recognized.”
05/03/2025
Dexterzer
Dexterzer
Об этом кворке
Выполню прогон Хрумером по комментариям. Прогон сайта может быть анкорным или безанкорным. По результатам прогона вы получите программный отчёт в формате txt.
Зачем нужны прогоны XRumer?
Я использую прогоны Хрумером для нескольких задач, для которых Хрумер подходит идеально:
Анкорный прогон информационных сайтов по очень широкой семантике (свои сайты прогоняю по 80% всей имеющейся семантики);
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Прогон Хрумером для ускорения индексации биржевых ссылок (если накупили биржевого хлама, который не хочет попадать в индекс);
Многоуровневые ссылки (страница вашего сайта — 10 дорогих анкорных ссылок — 100 дешевых ссылок — прогон Хрумером);
Прогон Хрумером отдельного домена с постраничным редиректом на основной сайт (отдельный домен можно неистово гонять, так как в любой момент он может быть отклеен от основного сайта, к тому же, эти ссылки можно скрыть от конкурентов).
Д ля этих задач прогон Хрумером — идеальное решение. Кроме того, можно прогонять Хрумером не только страницы сайта, но и YouTube-видео, публикации в Pinterest или других соцсетях.
05/03/2025
RolandPhync
RolandPhync
Tbilisi, georgia — jailed journalist mzia amaghlobeli gets weaker every day as her hunger strike has reached three weeks in rustavi, a town near the georgian capital of tbilisi, her lawyer says. now the 49-year-old is having difficulty walking the short distance from her cell to the room where they usually meet, and human rights officials, colleagues and family fear for her life.
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amaghlobeli was arrested jan. 12 during an anti-government protest in the coastal city of batumi, one of over 40 people in custody on criminal charges from a series of demonstrations that have hit the south caucasus nation of 3.7 million in recent months.
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the political turmoil follows a parliamentary election that was won by the ruling georgian dream party, although its opponents allege the vote was rigged.
protests highlight battle over georgia's future. here's why it matters.
its outcome pushed georgia further into russia's orbit of influence. georgia aspired to join the european union, but the party suspended accession talks with the bloc after the election.
as it sought to cement its grip on power, georgian dream has cracked down on freedom of assembly and expression in what the opposition says is similar to president vladimir putin's actions in neighboring russia, its former imperial ruler.
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05/03/2025
Scottduets
Scottduets
Tbilisi, georgia — jailed journalist mzia amaghlobeli gets weaker every day as her hunger strike has reached three weeks in rustavi, a town near the georgian capital of tbilisi, her lawyer says. now the 49-year-old is having difficulty walking the short distance from her cell to the room where they usually meet, and human rights officials, colleagues and family fear for her life.
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amaghlobeli was arrested jan. 12 during an anti-government protest in the coastal city of batumi, one of over 40 people in custody on criminal charges from a series of demonstrations that have hit the south caucasus nation of 3.7 million in recent months.
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the political turmoil follows a parliamentary election that was won by the ruling georgian dream party, although its opponents allege the vote was rigged.
protests highlight battle over georgia's future. here's why it matters.
its outcome pushed georgia further into russia's orbit of influence. georgia aspired to join the european union, but the party suspended accession talks with the bloc after the election.
as it sought to cement its grip on power, georgian dream has cracked down on freedom of assembly and expression in what the opposition says is similar to president vladimir putin's actions in neighboring russia, its former imperial ruler.
kra23.cc
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05/03/2025
Modestohag
Modestohag
Tbilisi, georgia — jailed journalist mzia amaghlobeli gets weaker every day as her hunger strike has reached three weeks in rustavi, a town near the georgian capital of tbilisi, her lawyer says. now the 49-year-old is having difficulty walking the short distance from her cell to the room where they usually meet, and human rights officials, colleagues and family fear for her life.
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amaghlobeli was arrested jan. 12 during an anti-government protest in the coastal city of batumi, one of over 40 people in custody on criminal charges from a series of demonstrations that have hit the south caucasus nation of 3.7 million in recent months.
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the political turmoil follows a parliamentary election that was won by the ruling georgian dream party, although its opponents allege the vote was rigged.
protests highlight battle over georgia's future. here's why it matters.
its outcome pushed georgia further into russia's orbit of influence. georgia aspired to join the european union, but the party suspended accession talks with the bloc after the election.
as it sought to cement its grip on power, georgian dream has cracked down on freedom of assembly and expression in what the opposition says is similar to president vladimir putin's actions in neighboring russia, its former imperial ruler.
kra23.cc
https://kra30-at.com
05/03/2025
Modestohag
Modestohag
Tbilisi, georgia — jailed journalist mzia amaghlobeli gets weaker every day as her hunger strike has reached three weeks in rustavi, a town near the georgian capital of tbilisi, her lawyer says. now the 49-year-old is having difficulty walking the short distance from her cell to the room where they usually meet, and human rights officials, colleagues and family fear for her life.
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amaghlobeli was arrested jan. 12 during an anti-government protest in the coastal city of batumi, one of over 40 people in custody on criminal charges from a series of demonstrations that have hit the south caucasus nation of 3.7 million in recent months.
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the political turmoil follows a parliamentary election that was won by the ruling georgian dream party, although its opponents allege the vote was rigged.
protests highlight battle over georgia's future. here's why it matters.
its outcome pushed georgia further into russia's orbit of influence. georgia aspired to join the european union, but the party suspended accession talks with the bloc after the election.
as it sought to cement its grip on power, georgian dream has cracked down on freedom of assembly and expression in what the opposition says is similar to president vladimir putin's actions in neighboring russia, its former imperial ruler.
kra26 cc
https://kra20at.cc
05/03/2025
Samuelwem
Samuelwem
Kate winslet had a surprising ‘titanic’ reunion while producing her latest film ‘lee’
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kate winslet is sharing an anecdote about a “wonderful” encounter she recently had with someone from her star-making blockbuster film “titanic.”
the oscar winner was a guest on “the graham norton show” this week, where she discussed her new film “lee,” in which she plays the fashion model-turned-war photographer lee miller from the world war ii era.
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winslet recounted that while she had previously executive produced a number of her projects, “lee” was the first movie where she served as a full-on producer. that required her involvement from “beginning to end,” including when the film was scored in post-production.
she explained to norton that when she attended the recording of the film’s score in london, while looking at the 120-piece orchestra, she saw someone who looked mighty familiar to her.
“i’m looking at this violinist and i thought, ‘i know that face!’” she said.
at one point, other musicians in the orchestra pointed to him while mouthing, “it’s him!” to her, and it continued to nag at winslet, prompting her to wonder, “am i related to this person? who is this person?”
finally, at the end of the day, the “reader” star went in to where the orchestra was to meet the mystery violinist, and she was delighted to realize he was one of the violinists who played on the ill-fated titanic ocean liner as it sank in james cameron’s classic 1997 film.
“it was that guy!” winslet exclaimed this week, later adding, “it was just wonderful” to see him again.
“we had so many moments like that in the film, where people i’ve either worked with before, or really known for a long time, kind of grown up in the industry with, they just showed up for me, and it was incredible.”
“lee” released in theaters in late september, and is available to rent or buy on appletv+ or amazon prime.
05/03/2025
Richardguipt
Richardguipt
Гибкий камень
Гибкий камень – это инновационный отделочный материал, сочетающий в себе эстетику натурального камня и удобство в применении. Изготавливается он путем нанесения тонкого слоя песчаника на текстильную основу. Благодаря этому, материал обладает гибкостью и легкостью, что позволяет использовать его для облицовки поверхностей любой сложности, включая криволинейные участки.
Гибкий мрамор
Гибкий мрамор представляет собой аналог гибкого камня, но в качестве основы используется мраморная крошка. Этот материал отличается более изысканным внешним видом, имитируя текстуру и цвет натурального мрамора. Гибкий мрамор применяется для создания элегантных интерьеров, облицовки каминов, колонн и других декоративных элементов.
Облицовка стен
Облицовка стен гибким камнем и мрамором – это современное решение для создания уникального дизайна интерьера и экстерьера. Материалы легко режутся и монтируются, не требуют специальной подготовки поверхности. Они устойчивы к перепадам температур, влаге и механическим повреждениям. Благодаря разнообразию цветов и текстур, гибкий камень и мрамор позволяют реализовать любые дизайнерские идеи, от классики до модерна. Облицовка стен этими материалами придает помещению неповторимый стиль и создает атмосферу комфорта и уюта. <a href=https://wallmramor.ru/>гибкий камень</a>
05/02/2025
Onlinegame
Onlinegame
Play online!
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05/02/2025
Georgezet
Georgezet
<a href=https://www.vesper.ru/presscenter/articles/chastotnyy-preobrazovatel-kak-sredstvo-povysheniya-effektivnosti-nasosov/>частотник для скважинного насоса</a> Преобразователь Частоты для Скважинного Насоса: Защита от Сухого Хода Многие современные частотные преобразователи оснащены функцией защиты от сухого хода, которая автоматически отключает насос при отсутствии воды в скважине, предотвращая поломку оборудования.
05/02/2025
TimothyNig
TimothyNig
Why axolotls seem to be everywhere — except in the one lake they call home
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scientist dr. randal voss gets the occasional reminder that he’s working with a kind of superstar. when he does outreach events with his laboratory, he encounters people who are keen to meet his research subjects: aquatic salamanders called axolotls.
the amphibians’ fans tell voss that they know the animals from the internet, or from caricatures or stuffed animals, exclaiming, “‘they’re so adorable, we love them,’” said voss, a professor of neuroscience at the university of kentucky college of medicine. “people are drawn to them.”
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take one look at an axolotl, and it’s easy to see why it’s so popular. with their wide eyes, upturned mouths and pastel pink coloring, axolotls look cheerful and vaguely muppet-like.
they’ve skyrocketed in pop culture fame, in part thanks to the addition of axolotls to the video game minecraft in 2021. these unusual salamanders are now found everywhere from girl scout patches to hot water bottles. but there’s more to axolotls than meets the eye: their story is one of scientific discovery, exploitation of the natural world, and the work to rebuild humans’ connection with nature.
a scientific mystery
axolotl is a word from nahuatl, the indigenous mexican language spoken by the aztecs and an estimated 1.5 million people today. the animals are named for the aztec god xolotl, who was said to transform into a salamander. the original nahuatl pronunciation is “ah-show-loat”; in english, “ack-suh-laht-uhl” is commonly used.
axolotls are members of a class of animals called amphibians, which also includes frogs. amphibians lay their jelly-like eggs in water, and the eggs hatch into water-dwelling larval states. (in frogs, these larvae are called tadpoles.)
most amphibians, once they reach adulthood, are able to move to land. since they breathe, in part, by absorbing oxygen through their moist skin, they tend to stay near water.
axolotls, however, never complete the metamorphosis to a land-dwelling adult form and spend their whole lives in the water.
“they maintain their juvenile look throughout the course of their life,” voss said. “they’re teenagers, at least in appearance, until they die.”
05/02/2025
HenryVop
HenryVop
Axolotl problems
as mexico city grew and became more industrialized, the need for water brought pumps and pipes to the lake, and eventually, “it was like a bad, smelly pond with rotten water,” zambrano said. “all of our aquatic animals suffer with bad water quality, but amphibians suffer more because they have to breathe with the skin.”
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to add to the axolotls’ problems, invasive fish species such as carp and tilapia were introduced to the lake, where they feed on axolotl eggs. and a 1985 earthquake in mexico city displaced thousands of people, who found new homes in the area around the lake, further contributing to the destruction of the axolotls’ habitat.
these combined threats have devastated axolotl populations. according to the international union for conservation of nature, there are fewer than 100 adult axolotls left in the wild. the species is considered critically endangered.
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while the wild axolotls of lake xochimilco have dwindled to near-extinction, countless axolotls have been bred for scientific laboratories and the pet trade. “the axolotl essentially helped establish the field of experimental zoology,” voss said.
in 1864, a french army officer brought live axolotls back to europe, where scientists were surprised to learn that the seemingly juvenile aquatic salamanders were capable of reproduction. since then, scientists around the world have studied axolotls and their dna to learn about the salamanders’ unusual metamorphosis (or lack thereof) as well as their ability to regrow injured body parts.
in addition to their role in labs, axolotls have become popular in the exotic pet trade (though they are illegal to own in california, maine, new jersey and washington, dc). however, the axolotls you might find at a pet shop are different from their wild relatives in lake xochimilco. most wild axolotls are a dark grayish brown. the famous pink axolotls, as well as other color variants such as white, blue, yellow and black, are genetic anomalies that are rare in the wild but selectively bred for in the pet trade.
what’s more, “most of the animals in the pet trade have a very small genetic variance,” zambrano said. pet axolotls tend to be inbred and lack the wide flow of different genes that makes up a healthy population in the wild. that means that the axolotl extinction crisis can’t simply be solved by dumping pet axolotls into lake xochimilco. (plus, the pet axolotls likely wouldn’t fare well with the poor habitat conditions in the lake.)
05/02/2025
Charlesler
Charlesler
Why axolotls seem to be everywhere — except in the one lake they call home
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scientist dr. randal voss gets the occasional reminder that he’s working with a kind of superstar. when he does outreach events with his laboratory, he encounters people who are keen to meet his research subjects: aquatic salamanders called axolotls.
the amphibians’ fans tell voss that they know the animals from the internet, or from caricatures or stuffed animals, exclaiming, “‘they’re so adorable, we love them,’” said voss, a professor of neuroscience at the university of kentucky college of medicine. “people are drawn to them.”
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take one look at an axolotl, and it’s easy to see why it’s so popular. with their wide eyes, upturned mouths and pastel pink coloring, axolotls look cheerful and vaguely muppet-like.
they’ve skyrocketed in pop culture fame, in part thanks to the addition of axolotls to the video game minecraft in 2021. these unusual salamanders are now found everywhere from girl scout patches to hot water bottles. but there’s more to axolotls than meets the eye: their story is one of scientific discovery, exploitation of the natural world, and the work to rebuild humans’ connection with nature.
a scientific mystery
axolotl is a word from nahuatl, the indigenous mexican language spoken by the aztecs and an estimated 1.5 million people today. the animals are named for the aztec god xolotl, who was said to transform into a salamander. the original nahuatl pronunciation is “ah-show-loat”; in english, “ack-suh-laht-uhl” is commonly used.
axolotls are members of a class of animals called amphibians, which also includes frogs. amphibians lay their jelly-like eggs in water, and the eggs hatch into water-dwelling larval states. (in frogs, these larvae are called tadpoles.)
most amphibians, once they reach adulthood, are able to move to land. since they breathe, in part, by absorbing oxygen through their moist skin, they tend to stay near water.
axolotls, however, never complete the metamorphosis to a land-dwelling adult form and spend their whole lives in the water.
“they maintain their juvenile look throughout the course of their life,” voss said. “they’re teenagers, at least in appearance, until they die.”
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