Libro de Visitas

Rogererome

22 Jan 2025 - 12:08 am

What New Glenn will do
In some ways, New Glenn has already made its mark on the launch industry. Blue Origin has for years pitched the rocket to compete with both SpaceX and United Launch Alliance — a joint venture of Boeing and Lockheed Martin that buys engines from Blue Origin — for lucrative military launch contracts.
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The US Space Force selected Blue Origin, ULA and SpaceX in June to compete for $5.6 billion worth of Pentagon contracts for national security missions slated to launch over the next four years.
Blue Origin also has deals with several commercial companies to launch satellites. The contracts include plans to help deploy Amazon’s Kuiper internet satellites and a recently inked deal with AST SpaceMobile to help launch the Midland, Texas-based company’s space-based cellular broadband network.

New Glenn could also be instrumental in building Blue Origin’s planned space station, called Orbital Reef. Blue Origin and it commercial partners, including Sierra Space and Boeing, among others, hope the station will one day provide a new destination for astronauts as the International Space Station is phased out of service.
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New Glenn vs. other powerful rockets
New Glenn packs significant power. Dubbed a “heavy-lift” vehicle, its capabilities lie between SpaceX’s Falcon 9 rocket and the more powerful Falcon Heavy launch vehicle.

SpaceX’s workhorse Falcon 9, for example, can haul up to 22.8 metric tons (50,265 pounds) to space. While New Glenn is capable of carrying about double that mass, it may also be roughly the same price as a Falcon 9: reportedly around $60 million to $70 million per launch.

“I think in order to compete with Falcon 9, you have to go head-to-head or better on price,” said Caleb Henry, the director of research at Quilty Space, which provides data and analysis about the space sector.

The question, however, is whether Blue Origin will be able to sustain a competitive price point, Henry added.

Still, one feature that makes New Glenn stand out is its large payload fairing, or nose cone. The component protects the cargo bay and is a whopping 23 feet (7 meters) wide — nearly 6 feet (2 meters) larger than that of SpaceX’s Falcon 9 or Falcon Heavy.

Henry said Blue Origin likely opted to outfit New Glenn with such a large fairing in order to help fulfill Bezos’ vision of the future.

Victorphina

21 Jan 2025 - 11:00 pm

Scientists have identified an estimated 10% of all species on Earth. Here’s what they found in 2024
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A toothy toadstool. A vegetarian piranha with a distinctive mark. And a pygmy pipehorse floating in the Indian Ocean shallows.

These wild wonders were among the hundreds of previously unknown species of animals, plants and fungi that scientists named and described for the first time in 2024, expanding our surprisingly limited knowledge of Earth’s diversity.

“Scientists estimate that we’ve identified only one-tenth of all species on Earth,” said Dr.
Shannon Bennett, chief of science at the California Academy of Sciences, in a statement.

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“While it is critical to place protections on known threatened species, we must also allocate resources towards identifying unknown species that may be just as important to the functioning of an ecosystem,” Bennett said.

Researchers connected to the institution described 138 new species in 2024, including 32 fish. One standout was a pygmy pipehorse named Cylix nkosi. The seahorse relative was originally found in 2021 in the cool temperate waters surrounding the North Island of New Zealand, but the species described this year was discovered in the subtropical waters off South Africa, expanding the known range of this group to the Indian Ocean

“South African reefs present notoriously difficult diving conditions with rough weather and intense, choppy waves — we knew we only had one dive to find it,” underwater photographer and marine biologist Richard Smith said in a statement.
“This species is also quite cryptic, about the size of a golf tee, but luckily we spotted a female camouflaged against some sponges about a mile offshore on the sandy ocean floor.”

The researchers involved in describing the new species chose nkosi as its name. A reference to the local Zulu word for “chief,” the name reflects the species’ crown-like head shape and acknowledges South Africa’s KwaZulu-Natal province where it was found.

Stacymof

21 Jan 2025 - 10:33 pm

Scientists have identified an estimated 10% of all species on Earth. Here’s what they found in 2024
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A toothy toadstool. A vegetarian piranha with a distinctive mark. And a pygmy pipehorse floating in the Indian Ocean shallows.

These wild wonders were among the hundreds of previously unknown species of animals, plants and fungi that scientists named and described for the first time in 2024, expanding our surprisingly limited knowledge of Earth’s diversity.

“Scientists estimate that we’ve identified only one-tenth of all species on Earth,” said Dr.
Shannon Bennett, chief of science at the California Academy of Sciences, in a statement.

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“While it is critical to place protections on known threatened species, we must also allocate resources towards identifying unknown species that may be just as important to the functioning of an ecosystem,” Bennett said.

Researchers connected to the institution described 138 new species in 2024, including 32 fish. One standout was a pygmy pipehorse named Cylix nkosi. The seahorse relative was originally found in 2021 in the cool temperate waters surrounding the North Island of New Zealand, but the species described this year was discovered in the subtropical waters off South Africa, expanding the known range of this group to the Indian Ocean

“South African reefs present notoriously difficult diving conditions with rough weather and intense, choppy waves — we knew we only had one dive to find it,” underwater photographer and marine biologist Richard Smith said in a statement.
“This species is also quite cryptic, about the size of a golf tee, but luckily we spotted a female camouflaged against some sponges about a mile offshore on the sandy ocean floor.”

The researchers involved in describing the new species chose nkosi as its name. A reference to the local Zulu word for “chief,” the name reflects the species’ crown-like head shape and acknowledges South Africa’s KwaZulu-Natal province where it was found.

Mosestwill

21 Jan 2025 - 10:31 pm

The survivors of recent crashes were sitting at the back of the plane. What does that tell us about airplane safety?
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Look at the photos of the two fatal air crashes of the last two weeks, and amid the horror and the anguish, one thought might come to mind for frequent flyers.

The old frequent-flyer adage is that sitting at the back of the plane is a safer place to be than at the front — and the wreckage of both Azerbaijan Airlines flight 8243 and Jeju Air flight 2216 seem to bear that out.
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The 29 survivors of the Azeri crash were all sitting at the back of the plane, which split into two, leaving the rear half largely intact. The sole survivors of the South Korean crash, meanwhile, were the two flight attendants in their jumpseats in the very tail of the plane.

So is that old adage — and the dark humor jokes about first and business class seats being good until there’s a problem with the plane — right after all?

In 2015, TIME Magazine reporters wrote that they had combed through the records of all US plane crashes with both fatalities and survivors from 1985 to 2000, and found in a meta-analysis that seats in the back third of the aircraft had a 32% fatality rate overall, compared with 38% in the front third and 39% in the middle third.

Even better, they found, were middle seats in that back third of the cabin, with a 28% fatality rate. The “worst” seats were aisles in the middle third of the aircraft, with a 44% fatality rate.
But does that still hold true in 2024?

According to aviation safety experts, it’s an old wives’ tale.

“There isn’t any data that shows a correlation of seating to survivability,” says Hassan Shahidi, president of the Flight Safety Foundation. “Every accident is different.”

“If we’re talking about a fatal crash, then there is almost no difference where one sits,” says Cheng-Lung Wu, associate professor at the School of Aviation of the University of New South Wales, Sydney.

Ed Galea, professor of fire safety engineering at London’s University of Greenwich, who has conducted landmark studies on plane crash evacuations, warns, “There is no magic safest seat.”

Zubdokthoky

21 Jan 2025 - 10:08 pm

Зубная клиника: где сделать зубы быстро и качественно

Хотите узнать, лечение зуба максимально комфортно? Клиника «Зуб Доктор» предлагает полный комплекс услуг по восстановлению и сохранению здоровья полости рта. Наши специалисты проводят болит зуб лечение с использованием современного оборудования и качественных материалов, обеспечивая долговечный результат.

Починить зуб: как исправить зубы без лишних хлопот

Если вы испытываете сильный дискомфорт или сталкиваетесь с острой болью, мы поможем протезировать зуб эффективно и безопасно. Задумываетесь, как сделать зубы? В распоряжении наших стоматологов есть все необходимые технологии и материалы для эстетичного и надёжного результата. Также у нас вы можете проконсультироваться по поводу виниры на зубы цена и других услуг.

Установить зуб: сколько стоит лечение зубов в «Зуб Доктор»

Многих пациентов интересует вопрос цены на зубы. В нашей клинике действует прозрачная система ценообразования, где лечение зубов и любая процедура рассчитываются исходя из индивидуальной ситуации. Вы можете узнать цена стоматологических услуг непосредственно у специалиста во время консультации. Мы делаем всё возможное, чтобы предоставить несколько вариантов решения проблемы и подобрать оптимальный по стоимости и качеству.

Чистка кариеса: шаг к здоровой улыбке

Регулярные осмотры и своевременное лечение кариеса помогают избежать серьёзных осложнений, таких как пульпит или пародонтит. При необходимости наши врачи проведут замена зубов, а также устранят такие проблемы, как болит зуб. Чтобы оценить, кариес зубов лечение, свяжитесь с клиникой «Зуб Доктор». Мы ответим на любые вопросы касательно стоимость зубов, чтобы вы могли принять взвешенное решение о будущем вашего здоровья.

В клинике «Зуб Доктор» мы стремимся обеспечить высокий уровень сервиса и доступные стоимость зубных услуг, чтобы каждый пациент мог получить качественное лечение и сохранить здоровую, красивую улыбку надолго.

В нашей стоматологии «Зуб Доктор» в ЖК «Южная Битца» регулярно проходят выгодные условия.
Узнайте больше о наших текущих программах лояльности и запишитесь на приём уже сегодня!
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Brentdem

21 Jan 2025 - 09:27 pm

‘I see the world around me in a brand-new way’: Dubai photographer reveals the UAE’s hidden wildlife
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In a country best known for its soaring skyscrapers, modern architecture and sprawling desert, wildlife isn’t always what comes to mind when people think of the United Arab Emirates (UAE). But Dubai-based photographer Anish Karingattil is determined to change that.

Originally from India, Karingattil moved to Dubai 17 years ago and began photographing wildlife shortly after, specializing in macro photography, using extreme close ups. Highlights of his stunning portfolio of images, taken across the seven Emirates, include a scorpion with her babies, an Arabian horned viper hiding in the desert sand, and two black and yellow mud daubers covered in dew drops.
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“Photographers get to tell a story through images,” Karingattil says. “Macro photography allows me to see life and the world around me in a brand-new way.”

Despite its hot climate and harsh desert, the UAE is home to over 1,000 plant and animal species. The waters around the country are home to the largest concentration of Indian Ocean humpbacks dolphin in the world, and the second-largest population of dugongs, after Australia.

With the UAE’s president recently extending the country’s “Year of Sustainability” into 2024, Karingattil uses wildlife photography as a method of capturing the country’s biodiversity and sharing it with others.

While interior design is his full-time job, “herping” is his passion. “Herping is the act of observing, studying, and photographing reptiles and amphibians in their natural habitats,” says Karingattil. “It is a popular hobby among nature enthusiasts and wildlife photographers who are fascinated by the diversity and beauty of these creatures.”

Hermanjem

21 Jan 2025 - 09:12 pm

A year ago today, things went from bad to worse for Boeing
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At 5 p.m. PT on January 5, 2024, Boeing seemed like a company on the upswing. It didn’t last. Minutes later, a near-tragedy set off a full year of problems.

As Alaska Airlines flight 1282 climbed to 16,000 feet in its departure from Portland, Oregon, a door plug blew out near the rear of the plane, leaving a gaping hole in the fuselage. Phones and clothing were ripped away from passengers and sent hurtling into the night sky. Oxygen masks dropped, and the rush of air twisted seats next to the hole toward the opening.
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Fortunately, those were among the few empty seats on the flight, and the crew got the plane on the ground without any serious injuries. The incident could have been far worse — even a fatal crash.

Not much has gone right for Boeing ever since. The company has had one misstep after another, ranging from embarrassing to horrifying. And many of the problems are poised to extend into 2025 and perhaps beyond.

The problems were capped by another Boeing crash in South Korea that killed 179 people on December 29 in what was in the year’s worst aviation disaster. The cause of the crash of a 15-year old Boeing jet flown by Korean discount carrier Jeju Air is still under investigation, and it is quite possible that Boeing will not be found liable for anything that led to the tragedy.
But unlike the Jeju crash, most of the problems of the last 12 months have clearly been Boeing’s fault.

And 2024 was the sixth straight year of serious problems for the once proud, now embattled company, starting with the 20-month grounding of its best selling plane, the 737 Max, following two fatal crashes in late 2018 and early 2019, which killed 346 people.

Still the outlook for 2024 right before the Alaska Air incident had been somewhat promising. The company had just achieved the best sales month in its history in December 2023, capping its strongest sales year since 2018.

It was believed to be on the verge of getting Federal Aviation Administration approval for two new models, the 737 Max 7 and Max 10, with airline customers eager to take delivery. Approvals and deliveries of its next generation widebody, the 777X, were believed to be close behind. Its production rate had been climbing and there were hopes that it could be on the verge of returning to profitability for the first time since 2018.

Greggzok

21 Jan 2025 - 08:58 pm

A brief history of sunglasses, from Ancient Rome to Hollywood
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Sunglasses, or dark glasses, have always guarded against strong sunlight, but is there more to “shades” than we think?

The pupils of our eyes are delicate and react immediately to strong lights. Protecting them against light — even the brilliance reflected off snow — is important for everyone. Himalayan mountaineers wear goggles for this exact purpose.

Protection is partly the function of sunglasses. But dark or colored lens glasses have become fashion accessories and personal signature items. Think of the vast and famous collector of sunglasses Elton John, with his pink lensed heart-shaped extravaganzas and many others.

When did this interest in protecting the eyes begin, and at what point did dark glasses become a social statement as well as physical protection?
The Roman Emperor Nero is reported as holding polished gemstones to his eyes for sun protection as he watched fighting gladiators.

We know Canadian far north Copper Inuit and Alaskan Yupik wore snow goggles of many kinds made of antlers or whalebone and with tiny horizontal slits. Wearers looked through these and they were protected against the snow’s brilliant light when hunting. At the same time the very narrow eye holes helped them to focus on their prey.

In 12th-century China, judges wore sunglasses with smoked quartz lenses to hide their facial expressions — perhaps to retain their dignity or not convey emotions.

Wesleyswada

21 Jan 2025 - 08:43 pm

Scientists have identified an estimated 10% of all species on Earth. Here’s what they found in 2024
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A toothy toadstool. A vegetarian piranha with a distinctive mark. And a pygmy pipehorse floating in the Indian Ocean shallows.

These wild wonders were among the hundreds of previously unknown species of animals, plants and fungi that scientists named and described for the first time in 2024, expanding our surprisingly limited knowledge of Earth’s diversity.

“Scientists estimate that we’ve identified only one-tenth of all species on Earth,” said Dr.
Shannon Bennett, chief of science at the California Academy of Sciences, in a statement.

https://kra26c.cc
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“While it is critical to place protections on known threatened species, we must also allocate resources towards identifying unknown species that may be just as important to the functioning of an ecosystem,” Bennett said.

Researchers connected to the institution described 138 new species in 2024, including 32 fish. One standout was a pygmy pipehorse named Cylix nkosi. The seahorse relative was originally found in 2021 in the cool temperate waters surrounding the North Island of New Zealand, but the species described this year was discovered in the subtropical waters off South Africa, expanding the known range of this group to the Indian Ocean

“South African reefs present notoriously difficult diving conditions with rough weather and intense, choppy waves — we knew we only had one dive to find it,” underwater photographer and marine biologist Richard Smith said in a statement.
“This species is also quite cryptic, about the size of a golf tee, but luckily we spotted a female camouflaged against some sponges about a mile offshore on the sandy ocean floor.”

The researchers involved in describing the new species chose nkosi as its name. A reference to the local Zulu word for “chief,” the name reflects the species’ crown-like head shape and acknowledges South Africa’s KwaZulu-Natal province where it was found.

Davidsep

21 Jan 2025 - 07:53 pm

The survivors of recent crashes were sitting at the back of the plane. What does that tell us about airplane safety?
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Look at the photos of the two fatal air crashes of the last two weeks, and amid the horror and the anguish, one thought might come to mind for frequent flyers.

The old frequent-flyer adage is that sitting at the back of the plane is a safer place to be than at the front — and the wreckage of both Azerbaijan Airlines flight 8243 and Jeju Air flight 2216 seem to bear that out.
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The 29 survivors of the Azeri crash were all sitting at the back of the plane, which split into two, leaving the rear half largely intact. The sole survivors of the South Korean crash, meanwhile, were the two flight attendants in their jumpseats in the very tail of the plane.

So is that old adage — and the dark humor jokes about first and business class seats being good until there’s a problem with the plane — right after all?

In 2015, TIME Magazine reporters wrote that they had combed through the records of all US plane crashes with both fatalities and survivors from 1985 to 2000, and found in a meta-analysis that seats in the back third of the aircraft had a 32% fatality rate overall, compared with 38% in the front third and 39% in the middle third.

Even better, they found, were middle seats in that back third of the cabin, with a 28% fatality rate. The “worst” seats were aisles in the middle third of the aircraft, with a 44% fatality rate.
But does that still hold true in 2024?

According to aviation safety experts, it’s an old wives’ tale.

“There isn’t any data that shows a correlation of seating to survivability,” says Hassan Shahidi, president of the Flight Safety Foundation. “Every accident is different.”

“If we’re talking about a fatal crash, then there is almost no difference where one sits,” says Cheng-Lung Wu, associate professor at the School of Aviation of the University of New South Wales, Sydney.

Ed Galea, professor of fire safety engineering at London’s University of Greenwich, who has conducted landmark studies on plane crash evacuations, warns, “There is no magic safest seat.”