Guestbook

Josephhal

16 Apr 2025 - 01:12 pm

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.
kra31 at
“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.
https://kra30att.cc
kra30 at
“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.”

Tolikfep

16 Apr 2025 - 12:49 pm

darknet markets dark web market urls

Timothylep

16 Apr 2025 - 12:27 pm

Why axolotls seem to be everywhere — except in the one lake they call home
kraken onion
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.”
https://kra30s.cc
kraken зеркало

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.”

Alonzowed

16 Apr 2025 - 12:08 pm

Lunar clockwork
What scientists know for certain is that they need to get precision timekeeping instruments to the moon.
kra30cc
Exactly who pays for lunar clocks, which type of clocks will go, and where they’ll be positioned are all questions that remain up in the air, Gramling said.

“We have to work all of this out,” she said. “I don’t think we know yet. I think it will be an amalgamation of several different things.”
https://kra30c.cc
kraken зайти
Atomic clocks, Gramling noted, are great for long-term stability, and crystal oscillators have an advantage for short-term stability.
“You never trust one clock,” Gramling added. “And you never trust two clocks.”

Clocks of various types could be placed inside satellites that orbit the moon or perhaps at the precise locations on the lunar surface that astronauts will one day visit.

As for price, an atomic clock worthy of space travel could cost around a few million dollars, according Gramling, with crystal oscillators coming in substantially cheaper.

But, Patla said, you get what you pay for.

“The very cheap oscillators may be off by milliseconds or even 10s of milliseconds,” he added. “And that is important because for navigation purposes — we need to have the clocks synchronized to 10s of nanoseconds.”

A network of clocks on the moon could work in concert to inform the new lunar time scale, just as atomic clocks do for UTC on Earth.

(There will not, Gramling added, be different time zones on the moon. “There have been conversations about creating different zones, with the answer: ‘No,’” she said. “But that could change in the future.”)

Andregeacy

16 Apr 2025 - 12:03 pm

Букет просто сказка! Все цветы как живые.
купить розы в томске

Jamesonent

16 Apr 2025 - 11:49 am

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.”
lucky jet играть
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.
https://lucky-jetts.com
lucky jet игра
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.)

Keithsooge

16 Apr 2025 - 11:34 am

Coocooby.com – Affordable Online Store for Fashion, Gadgets & Home Essentials in the USA ������������
If you're looking for a reliable online store in the USA that offers affordable fashion, smart home gadgets, and must-have tech accessories, then look no further than Coocooby.com.

✅ What is Coocooby?
Coocooby is an American-based eCommerce store located in Colorado, USA, offering a wide range of products to make your life easier, more stylish, and budget-friendly. Whether you're shopping for clothes, home tools, or tech gear – Coocooby has something for everyone.

������ Why Shop at Coocooby.com?
������ Trendy fashion for men & women – stylish, comfy & affordable

������ Smart home gadgets – organize your space with ease

������ Tech accessories – useful and sleek for daily use

������️ Weekly deals & special offers

������ Fast and reliable shipping across the USA

������ Trusted by Shoppers Across the US
With hundreds of satisfied customers, Coocooby is becoming a favorite destination for those who love budget-friendly shopping without compromising on quality.

������ Check it out today at: www.coocooby.com
������ Contact: coocoobystore@gmail.com | ☎️ +1 (719) 203-2258
������ Business Address: Colorado, United States

Lewisliz

16 Apr 2025 - 11:15 am

Why axolotls seem to be everywhere — except in the one lake they call home
kraken tor
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.”
https://kra30s.cc
kraken тор

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.”

Patrickmut

16 Apr 2025 - 11:12 am

Аренда яхты в Москве
Аренда яхты в Москве – это доступный и увлекательный способ провести время на воде, наслаждаясь живописными пейзажами столицы и ее окрестностей. Яхты предлагают уникальные возможности для отдыха, мероприятий и романтических прогулок. С каждым годом все больше людей выбирают аренду яхт, чтобы создать незабываемые воспоминания, будь то празднование дня рождения, свадьбы или просто отдых с друзьями.
Аренда яхты в москве
Снять яхту в Москве
Чтобы снять яхту в Москве, вам достаточно учитывать несколько ключевых моментов. Во-первых, важно определить тип яхты, который вам нужен. Существуют моторные, парусные и экскурсионные яхты, каждая из которых обладает своими особенностями и преимуществами. Для небольших компаний подойдут уютные моторные яхты, а для больших мероприятий – просторные парусные или катамараны с несколькими палубами.

Преимущества аренды яхты:
Комфортабельность: Современные яхты оборудованы всем необходимым для комфортного времяпрепровождения: уютные каюты, кухня, отдельные санитарные узлы и зоны для отдыха.
Эстетика: Прогулки на яхте позволяют насладиться великолепными видами на Московское море, парк Коломенское и другие живописные уголки.
Гибкость в организации: Вы можете выбрать маршрут, чтобы посетить понравившиеся места или устроить остановки для купания и отдыха.
Аренда яхт в Подмосковье
Аренда яхт в Подмосковье – это отличное решение для тех, кто хочет провести время вдали от городской суеты. Многие водоемы в этом регионе идеально подходят для яхтенных прогулок. Исследуя Подмосковье, вы можете насладиться красивыми природными пейзажами, увидеть исторические места и просто расслабиться на природе.

Почему стоит арендовать яхту в Подмосковье:
Разнообразие маршрутов: В Подмосковье множество рек и водоемов, таких как река Москва, Волга, Ока и многие другие, которые открывают перед вами широкий выбор маршрутов.
Спокойствие и уединение: Вы можете отдохнуть в тишине природы, насладиться атмосферой удаленности и уединения, что так приятно после напряженных будней.
Организация мероприятий: Аренда яхты может быть идеальным вариантом для проведения корпоративов, дни рождения, праздничных мероприятий или просто для романтического ужина на воде.

Frankberep

16 Apr 2025 - 10:46 am

Lunar clockwork
What scientists know for certain is that they need to get precision timekeeping instruments to the moon.
Кракен даркнет
Exactly who pays for lunar clocks, which type of clocks will go, and where they’ll be positioned are all questions that remain up in the air, Gramling said.

“We have to work all of this out,” she said. “I don’t think we know yet. I think it will be an amalgamation of several different things.”
https://kra30c.cc
kraken тор
Atomic clocks, Gramling noted, are great for long-term stability, and crystal oscillators have an advantage for short-term stability.
“You never trust one clock,” Gramling added. “And you never trust two clocks.”

Clocks of various types could be placed inside satellites that orbit the moon or perhaps at the precise locations on the lunar surface that astronauts will one day visit.

As for price, an atomic clock worthy of space travel could cost around a few million dollars, according Gramling, with crystal oscillators coming in substantially cheaper.

But, Patla said, you get what you pay for.

“The very cheap oscillators may be off by milliseconds or even 10s of milliseconds,” he added. “And that is important because for navigation purposes — we need to have the clocks synchronized to 10s of nanoseconds.”

A network of clocks on the moon could work in concert to inform the new lunar time scale, just as atomic clocks do for UTC on Earth.

(There will not, Gramling added, be different time zones on the moon. “There have been conversations about creating different zones, with the answer: ‘No,’” she said. “But that could change in the future.”)