List of All Articles with Tag 'science'

Public interest in the deep ocean went into a frenzy this week as the search for the doomed Titan submarine played out – and Oscar-winning film director has made no secret of the fact that he is obsessed with the subject. Since it emerged on 22 June that the Titan was destroyed in what US authorities called a “catastrophic implosion”, Cameron has been telling media outlets that he knew what the five-man crew’s fate was since Monday, four days earlier. After calling up his “contacts in the deep submersible community” Cameron said he had already ascertained that the vessel had been destroyed in an implosion. “I felt in my bones what had happened.” Sign up to our free Indy100 weekly newsletter But why does Cameron know so much about the ocean depths? Titanic, Avatar and The Abyss First of all, Cameron has made a lot of films about the bottom of the sea. His 1997 film, Titanic, won 11 Oscars and was the first movie to earn more than $1bn worldwide, and Cameron went deep on his research – literally. The filmmaker has visited the real-life wreck of the Titanic 33 times, making his first trip in 1995 to shoot footage for the film. One of those dives even involved getting trapped with the wreck for 16 hours, with currents of water holding the director’s submarine at the bottom of the ocean. He has even written a book about his experiences, Exploring The Deep, which includes details of his dive journey, photos and maps from his own explorations of the wreck. He told ABC News: “I actually calculated [that] I've spent more time on the ship than the captain did back in the day.” Long before Titanic, Cameron directed The Abyss in 1989. The premise of the film is that an American submarine sinks in the Caribbean – sound familiar? That prompts a search and recovery team to race against Soviet vessels to recover the boat. Meanwhile, the last movie in Cameron’s famous Avatar franchise, The Way of Water, is set on the aquatic ecosystems of a world 25 trillion miles from Earth. "Some people think of me as a Hollywood guy … (but) I make 'Avatar' to make money to do explorations," Cameron told The Telegraph. Going even deeper In 2012, Cameron went a step further, plunging nearly 11km down to the deepest place in the ocean, the Mariana Trench in the western Pacific. The filmmaker made the solo descent in a submarine called the Deepsea Challenger, and it took more than two hours to reach the bottom. The submarine he used was years in the making, designed by Cameron himself with a team of engineers. The trip was only the second manned expedition to the Mariana Trench. The first was in 1960, when US Navy Lieutenant Don Walsh and Swiss scientist Jacques Piccard descended to the ocean floor. “It was absolutely the most remote, isolated place on the planet,” Cameron said in a later interview. “I really feel like in one day I've been to another planet and come back.” He was even underwater when 9/11 happened His obsession with the ocean goes back to age 17, he told the New York Times, when he learned to scuba dive, when he said he felt like he had discovered the "keys to another world”. And between making Titanic in 1997 and Avatar in 2009 Cameron didn’t make a feature film. But he did make documentaries about sea exploration. One of those, 2003’s Ghosts of the Abyss, showed Cameron's travels to the Titanic, while the other, 2005’s Aliens of the Deep, saw Cameron team up with NASA scientists to explore the sea creatures of mid-ocean ridges. Cameron’s fascination even meant he was inside a submersible vessel exploring the Titanic on 11 September 2001, when terrorists flew two passenger jets into the World Trade Centre. It was only after the now-68-year-old director and his crew finished their expedition and returned to the main ship that Cameron learned what had happened. “What is this thing that’s going on?” Cameron asked the late actor Bill Paxton, who played treasure hunter Brock Lovett in the film. “The worst terrorist attack in history, Jim,” Paxton said. Cameron realised he “was presumably the last man in the Western Hemisphere to learn about what had happened,” he told Spiegel in 2012. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

The universe appears to be speaking to us, after a centuries old “echo” from a supermassive black hole was detected by scientists. The black hole located inside the Milky Way became active around 200 years ago and produced a sound that is now being studied. The research was published in Nature and focuses on the black hole named Sagittarius A* (Sgr A*) found 26,000 light-years away from Earth. The noise was triggered when the object consumed gas and dust, with particles moving into the event horizon. The findings could teach us more about the activity of supermassive black holes, which continue to intrigue and confound scientists. Sign up to our free Indy100 weekly newsletter Author of the research Dr Frederic Marin of Strasbourg University said: “It reveals the past awakening of this gigantic object – which is four million times more massive than the Sun. “Our work presents the missing piece of evidence that X-rays from the giant molecular clouds are due to reflection of an intense, yet short-lived flare produced at or nearby Sagittarius A*. These results can further constrain the past activity of the galactic centre.” By their very nature, black holes are difficult to study as they absorb light around them, and these new findings offer insight into a fascinating part of space. Dr Marin said: “To get an idea of the increase in intensity of the X-ray emission when the black hole emerged from its quiescent state, it is as if a single glow-worm hidden in a forest suddenly became as bright as the Sun. “These findings explain why galactic molecular clouds near Sgr A* are shining more brightly than usual. It is because they are reflecting the X-rays emitted by Sgr A* 200 years ago.” Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

A search vessel reached the sea floor near the wreck of the Titanic and began looking for a

One of the key building blocks required for human life has been found in the depths of space. Astronomers have been looking out into a region 1,000 light-years from Earth, known as the Perseus Molecular Complex, and they’ve found an amino acid which is essential in human growth. Tryptophan is one of the 20 amino acids required for humans to develop. Babies require it to grow and it’s also important for protein development and muscle function in adults Readings from the Spitzer telescope, which is no longer in use, were crucial to the discovery. Sign up to our free Indy100 weekly newsletter The Perseus Molecular Complex is only visible when viewed through infrared instruments, and tryptophan gives off an identifiable light reading when observed in this way. Dr Susana Iglesias-Groth is from the Instituto de Astrofísica de Canarias and was lead author on the new research. "The evidence for tryptophan in the Perseus molecular complex should encourage additional effort to identify other amino acids in this region, and in other star-forming regions,” Dr Iglesias-Groth said. “It is a very exciting possibility that the building blocks of proteins are widely present in the gas from which stars and planets form – it may be key for the development of life in exoplanetary systems.” The findings were published in the Monthly Notices of the Royal Astronomical Society. It comes after research showed that life forms could potentially be able to survive in the conditions in the clouds above Venus. The key point revolves around the presence of the biosignature gas phosphine, which is often identified as a sign of life. It also posits the idea that potential life forms on the planet could use sulphuric acid the way life forms on Earth use water. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Scientists have just created an entirely new state of matter made out of subatomic particles. The bosonic correlated insulator, to be precise, is both a new material and a new state of matter, said researchers from California, Arizona and Japan. There are four fundamental states of matter, liquid, solid, gas and plasma – an electrically charged gas found in situations like stars and lightning strikes. But there are many others when you drill down to quantum level (that means at an atomic and subatomic level). The scientists said this is a new one. Sign up to our free Indy100 weekly newsletter The new material is a lattice-shaped pattern, formed from a layer of the two different types of subatomic particles: bosons and fermions. Bosons are a type of particle which is difficult for scientists to create and manipulate because they do not interact with each other. Fermions are more stable – particles such as electrons – and interact through electrostatic force. The material sees the two different types of particle combining and interacting in a new way, with the particles eventually form into a crystalline state, which in turn creates a material which has an insulating effect. “Conventionally, people have spent most of their efforts to understand what happens when you put many fermions together,” says condensed matter physicist Chenhao Jin from the University of California, Santa Barbara (UCSB). “The main thrust of our work is that we basically made a new material out of interacting bosons.” The new material doesn’t yet have any practical uses, but exotic creations like this help scientists understand how the universe is put together, the team said. “What happened here is that we discovered the correlation that drove the bosons into a highly ordered state,” said physicist Richen Xiong, from UCSB. The scientists think the discovery could lead to them finding more materials like this further down the line. “We know that some materials have very bizarre properties,” said Xiong. “And one goal of condensed matter physics is to understand why they have these rich properties and find ways to make these behaviours come out more reliably.” Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

The researcher who invented the term 'cisgender' has hit back at "cowardly" Elon Musk for calling the term a slur. 'Cis' or 'cisgender' was coined by now-retired researcher Dana Defosse. They are used to describe someone whose gender identity aligns with the sex they were assigned at birth. It is not offensive or intended to be used as an insult. Defosse first used the term in a 1994 internet forum, before being added to the Oxford English Dictionary much later in 2015. In an essay for HuffPost, Defosse explained how she invented the term: "I knew that in chemistry, molecules with atoms grouped on the same side are labelled with the Latin prefix ‘cis–,’ while molecules with atoms grouped on opposite sides are referred to as ‘trans–.’ So, cisgender. It seemed like a no-brainer," she wrote. On Wednesday (21 June), Musk responded to a user who claimed to have been harassed by trans rights activists. Twitter user James Esses said he "rejected" the terms after receiving "a slew of messages from trans activists calling me ‘cissy’ and telling me that I am ‘cis’ ‘whether or not I like it.’" In response, Musk tweeted: "Repeated, targeted harassment against any account will cause the harassing accounts to receive, at minimum, temporary suspensions. The words “cis” or “cisgender” are considered slurs on this platform." Sign up for our free Indy100 weekly newsletter The tech mogul's response left many social media users baffled, with Defosse saying it came as no surprise after his "ghastly history of attacking trans people." “The post on Twitter has degenerated into a sort of free-for-all for antisemitic and racist tropes, so it sort of fits in with the direction that platform is going," Defosse said. "The fact is, whether or not somebody identifies as cisgender doesn’t negate the fact that cisgender identity is a valid construct. It exists, and it has meaning in how we operate in the world." The retired researcher went on to call his censorship attempt "cowardly". "Banning use of a word that’s part of our daily vocabulary around the world, that appears in the Oxford English Dictionary, it’s a cowardly and futile attempt to censor an idea which is, in my opinion, way bigger and more enduring than anything Musk could hope to offer," she added. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

There’s a reason nobody’s referring to the missing ‘Titanic’ submersible as a submarine.

Underwater noises detected near the wreck of the Titanic can’t be positively linked to the missing submersible vessel

By Will Dunham WASHINGTON In shallow waters about 242 million years ago, a strange marine reptile built unlike

The search for a diving vessel that was headed to the wreck of the Titanic has shifted underwater

Research from the University of Vermont suggests that there may be a link between those who have blue eyes and alcoholism. The study, conducted in 2015, was led by Dr Arvis Sulovari and assistant professor Dawei Li, and was the first to draw a direct connection between the colour of someone's eyes and their risk of developing alcoholism. Professor Li generated a database comprising of more than 10,000 individuals who have received a diagnosis for at least one psychiatric illness, including conditions such as addiction. Speaking of the conditions, Li - an expert in microbiology and molecular genetics - explained that they were "complex disorders" and that "many genes" and "environmental triggers" were involved. Sign up to our free Indy100 weekly newsletter The researchers used the database to identify those with a dependency on alcohol and discovered an interesting correlation. They found that those with lighter colour eyes - especially blue - had greater rates of alcohol addiction. The researchers even checked three times to be sure of their findings. "This suggests an intriguing possibility that eye colour can be useful in the clinic for alcohol dependence diagnosis," said Dr Sulovari. The study also found that the genetic components that determine eye colour and those associated with excessive alcohol use share the same chromosome. However, more tests and studies are going to have to take place in order for us to gain a deeper understanding of the potential link between eye colour and higher rates of alcohol dependency. Researchers are still unsure as to why there is such a link. With professor Li saying that much of genetics is "still unknown". Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

The European Union’s landmark green deal is at risk of being dragged into “culture wars,” said the bloc’s