Entrepreneur and CEO of Tesla and Space X, Eldon Musk may have a little more time on his hands, as he's leaving his position on the board of the Open Al, according to a blog post.

    The departure is likely the result of Tesla's moving into the field of Artificial Intelligence(AI)，which he said in 2017 would be the “best in the world”and would even be able to “predict your destination, ”Musk will continue to “donate and advise the organization,” Open AI said in a blog post on Feb. 20, adding that “As Tesla continues to become more focused on AI, this will avoid a potential future conflict for Eldon.

    Musk and Y Combiner CEO Sam Altman co-founded the nonprofit enterprise in December2015, its mission is to develop safe artificial general intelligence and ensure those developments are made public. Open AI researchers published a paper on the site ArXiv, org, detailing the possible secure threats that come with“malicious”AI. In fact, Musk has heard the “evil AI”alarm several times, On Aug.11，2017, he warned that artificial intelligence poses a bigger threat to humanity, and he told a gathering of state governors that the government needs to regulate Al before robots start “killing people. ”

    Musk's departure from the Open AI board could mean big things for Tesla. As Eton Goodbye, a financial reporter, noted on Futurism, the move “could signal that Tesla is more deeply committed to their own AI projects than we thought. ”He added, “Those who have had their ears to any rumors (谣言)that Tesla is ready to deliver vehicles capable of Level 5autonomy could take this new Open Al development as a sign that the company is inching closer to that unapproachable goal, ”No company has reached that level of autonomy, which means that a driverless car could navigate any road under any conditions and that all the human “driver” would need to do is to input a destination.

    The Pacific island nation of Nauru used to be a beautiful place. Now it is an ecological disaster area. Nauru's heartbreaking story could have one good consequence — other countries might learn from its mistakes.

    For thousands of years, Polynesian people lived in the remote island of Nauru, far from western civilization. The first European to arrive was John Fearn in 1798. He was the British captain of the Hunter, a whaling ship. He called the island Pleasant Island.

    However, because it was very remote, Nauru had little communication with Europeans at first. The whaling ships and other traders began to visit, bringing guns and alcohol. These elements destroyed the social balance of the twelve family groups on the island. A ten-year civil war started, which reduced the population from 1,400 to 900.

    Nauru's real troubles began in 1899 when a British mining company discovered phosphate (磷酸盐)on the island. In fact, it found that the island of Nauru was nearly all phosphate, which was a very important fertilizer for farming. The company began mining the phosphate.

    A phosphate mine is not a hole in the ground; it is a strip mine(露天矿). When a company strip-mines, it removes the top layer of soil. Then it takes away the material it wants. Strip mining totally destroys the land. Gradually, the lovely island of Nauru started to look like the moon.

    In 1968, Nauru became one of the richest countries in the world. Every year the government received millions and millions of dollars for its phosphate.

    Unfortunately, the leaders invested the money unwisely and lost millions of dollars. In addition, they used millions more dollars for personal expenses. Soon people realized that they had a terrible problem — their phosphate was running out. Ninety percent of their island was destroyed and they had nothing. By 2000, Nauru was financially ruined. Experts say that it would take approximately $433,600,000 and more than 20 years to repair the island. This will probably never happen.

    This year marks the 170th anniversary of Paul Gauguin's birth. He lived for just 54 years but he packed his brief life with activity.

    The French painter spent his early childhood in Peru before returning to France. As an adult, he continued to travel a lot. Most famously, he spent much of the last decade of his life in Tahiti, an island in southern Pacific Ocean. Indeed, Gauguin is best known for his colorful paintings of Tahitians and their culture.

    The restlessness of this great painter has been normal among modern artists since the middle of the 19th century. They're never satisfied for long with a certain style or way of life. Once something becomes conventional, it's turned down.

    The artistic culture that Gauguin developed from was that of Impressionism (印象派). Painters like Claude Monet had wanted to paint how they saw the world, not how their teachers taught them it should be seen. Gauguin, and similar artists like his friend Vincent van Gogh, moved even further away from "respectable" art than the Impressionists. For them, it was not simply a matter of seeing the world differently, but feeling and thinking about it differently, too.

    Gauguin saw, felt and thought differently from most members of European society. He thought that European culture was too fancy and not spontaneous. This is why he turned to the traditions of other parts of the world, like Africa, and, eventually, Tahiti. Artists like Gauguin used the word "primitive" for these cultures, but not as a negative term. For him, Europe, in becoming modem, industrial and scientific, seemed less natural than other parts of the world.

    In truth, Gauguin's paintings may be unconventional but they are certainly not "primitive". They are the work of a painter with great awareness of what he was doing. It was this awareness that made him such an important painter for those that came after, in the 20th century. When we look closely at the works of Gauguin we begin to understand Pablo Picasso, and especially Henri Matisse, a little better.

Charles Darwin was a very famous scientist who lived in the 1800s.His ideas about evolution completely changed the way scientists understand the natural world.He recorded his ideas in notebooks marked with letters of the alphabet(字母表),which have been considered extremely important for showing how he developed the evolution.

The Cambridge University Library had several of Mr.Darwin's notebooks.The two that were missing were kept in a small box,and were last seen in 2000.In 2001,someone noticed that the box was missing.Luckily,the library had taken pictures of the notebooks' pages,so the information wasn't completely lost.

In 2020,the library made a huge effort to find the books.Workers searched through the 10 million books and other things in the library,but they didn't find the notebooks.Finally,the library asked people around the world to help look for the books.They officially reported the missing notebooks as stolen so that the police around the world would search for them.

Nobody could ever have expected the way in which the notebooks were returned recently:in a pink gift bag with a note that said "Librarian,Happy Easter,X".People at the library quickly recognized the blue box that the notebooks had been stored in.Inside a brown envelope they found the two missing notebooks,tightly wrapped in plastic.After the police had examined the package,library workers were able to open and carefully study the notebooks.They were pleased to learn that the notebooks were in good shape.They hadn't been damaged and they weren't missing any pages.

The timing of the return is perfect.The library was planning a show called "Darwin in Conversation",which is set to open in July.Now the missing notebooks can be part of that show.

Eduardo and Mast both badly wanted a puppy. When they got1 , the top of their list in their new life together was to adopt a dog. They stopped by Animal Shelter two days before their wedding and2 connected with a 4-month-old German shepherd, Daisy. They thought she was3 for their family. However, they encountered a(an)4 situation when they learned Daisy would be ready for 5 on a first-come, first-served basis on the same day as their wedding ceremony.

6 to make Daisy a part of their special day, they decided to 7 the wedding vows(誓言) to 9 a. m.. "Everyone was really 8 and told us, ‘It's your special day and we'll be there 9 you'd like,'" Mast said.

On the wedding morning, Mast, in a white dress, and Eduardo, in a black suit10 vows at a civil celebrant's(民事神父) home. The excitement of marriage was matched with the 11 to welcome Daisy into their life. Upon finishing saying their "I dos," they 12 to Animal Shelter.

"We got there about 9:45 and were first in line. When a shelter worker fetched Daisy and carried her in, we were both in 13 at how cute she was," Eduardo said. "When I grabbed her, she started loving all over us."

Cavedon, the manager of Animal Shelter, said "I am 14 that the newlyweds step up to adopt the puppy and I witness the tender moment when Daisy15 them with kisses.

Afterwards they first shared Daisy's16 and theirs with people present. The couple's romance began with friendship in the Marine Corps and17 evolved into something more serious. After a proposal(求婚) at Great Falls, they18 for a small civil ceremony and a larger one in the future.

"Now Daisy is learning to be house-broken and has smoothly19 our apartment," they said. "She loves to curl up with us in bed at night," Eduardo added. "She's20 , adorable and super playful."

As the world deals with the rising temperatures brought by climate change, the demand for cooling solutions in hot, dry regions becomes increasingly pressing. However, traditional air conditioning systems produce massive greenhouse gases and use lots of energy.

Facing these challenges, a research team from McGill University, UCLA, and Princeton have found an inexpensive, sustainable cooling method. Their approach not only offers a solution for cooling but also promises to address the problem of heat waves during electricity blackouts.

The researchers set out to achieve a new standard in passive cooling (无动力制冷) within naturally conditioned buildings in hot climates such as Southern California. They aimed to address an important question: how can passive cooling techniques outperform traditional air conditioning units and improve indoor comfort?

The key to this breakthrough lies in harnessing the potential of radiative (辐射的) cooling materials, specifically in the context of housing design. Traditionally, such materials have been employed to prevent roofs(屋顶) from overheating and improve heat rejection from cooling systems. However, the research team recognised that there is under-explored potential in integrating these materials into building design — they can not only remove waste indoor heat but also drive regular and healthy air changes.

Lead author Remy Fortin stated, "We found we could maintain air temperatures several degrees below the surrounding temperature."Remarkably, they achieved this success without giving up a healthy airing. This was never a piece of cake, considering air exchange can unintendedly introduce heat into the building when the goal is to keep the inside cooler than the outside.

The researchers are hopeful that their findings will be used to positively impact communities suffering from climatic heating and heat waves. Salmaan Craig, the principal researcher expressed their expectations: "We hope that materials scientists, designers, and engineers will be interested in these results and that our work will inspire more broader thinking for how to integrate breakthroughs in radiative cooling materials with simple but effective solutions."