Scientists have finally found a “demon” subatomic particle that was predicted to exist nearly seven decades ago and speculated to play an important role in the behaviours of a range of metals and alloys, including superconductors. Physcist David Pines in 1956 theorised that electrons, which normally have a mass and negative electric charge, can under some conditions combine to form a composite “demon” particle that is massless, neutral and does not interact with light. These theorised interesting properties, however, made these particles elude detection – until now. After a nearly 70-year search for these subatomic entities, researchers, including those from the University of Illinois Urbana-Champaign, have finally found signatures of Dr Pines’ “demon” particles in the metal strontium ruthenate. “Demons have been theoretically conjectured for a long time, but experimentalists never studied them. In fact, we weren’t even looking for it. But it turned out we were doing exactly the right thing, and we found it,” study co-author Peter Abbamonte said. Electrons – which are distributed in different energy bands within atoms – are known to lose their individuality in solids with electric interactions making the particles combine to form collective units. With some threshold energy, studies have also shown electrons can form composite particles called plasmons with a new charge and mass. However, the mass is so large that these plasmon particles cannot form with the kind of energies available at room temperature. Revelations on room-temperature semiconductors are considered to be one of the “holy grails” of physics. But Dr Pines theorised that if a solid has electrons in more than one energy band, as many metals do, their respective plasmons may combine in an out-of-phase pattern to form a new plasmon that is massless and neutral – a demon. Since these special particles are massless, he argued they can form with any energy and may exist at all temperatures – leading to speculation that the demons have important effects on the behaviour of some metals with multiple energy bands. “The vast majority of experiments are done with light and measure optical properties, but being electrically neutral means that demons don’t interact with light,” Dr Abbamonte explained. So a completely new experiment was needed to detect them. In the research, scientists were studying the compound strontium ruthenate as it is similar to high-temperature superconductors – a special kind of material where electrical resistance vanishes. For a survey of the metal’s electronic properties, they synthesised high-quality samples of the metal. They then applied a technique to study the metal that uses energy from electrons shot into the metal to directly observe the metal’s features, including plasmons that form. During their observation of the electron interactions, scientists found something unusual – an electronic mode with no mass. “At first, we had no idea what it was. Demons are not in the mainstream. The possibility came up early on, and we basically laughed it off. But, as we started ruling things out, we started to suspect that we had really found the demon,” Ali Husain, another author of the study, said. Researchers then sought to calculate how electrons are distributed across bands inside strontium ruthenate. Predictions by Dr Pines indicate there are specific conditions when “demons” are likely to form, and it remained unknown whether strontium ruthenate would have the particle. “We had to perform a microscopic calculation to clarify what was going on. When we did this, we found a particle consisting of two electron bands oscillating out-of-phase with nearly equal magnitude, just like Pines described,” found Edwin Huang, another author of the study. “Our study confirms a 67-year-old prediction and indicates that demons may be a pervasive feature of multiband metals,” scientists wrote in the study. Read More Superconductor breakthrough could represent ‘biggest physics discovery of a lifetime’ – but scientists urge caution LK-99: Excitement rises over possibly revolutionary ‘miracle material’ – but there is still no good reason to believe it exists Superconductivity: The technology that could change everything if we just knew how it worked ‘Vampire child’ with padlocked ankle unearthed in Polish ‘necropolis’ Two new kinds of mole discovered in mountains of Turkey Scientific discovery casts doubt on our understanding of human evolution

Novak Djokovic returned to the court on Wednesday, cruising past Tomas Etcheverry 6-3, 6-2 and strengthening his hold on top spot in the rankings after his two closest rivals...

Alix Earle's fashion choice for the pink carpet event was nothing short of spectacular

South Korean President Yoon Suk Yeol wants experts from his own country to help monitor Japan’s release of

VANCOUVER, British Columbia--(BUSINESS WIRE)--Nov 24, 2023--

Spider-Man: Lotus is one of the most talked-about films of the year, but not necessarily for the right reasons. The fan film with a budget of $100,000 has proven to be hugely controversial in the months leading up to its release. The trailer generated a lot of buzz back in 2021, but it took until June 2022 for the first of the controversies to be unearthed. Back then, an anonymous twitter user shared screenshots of messages from Warden Wayne, the man cast to play Peter Parker in the movie, using racial slurs. Wayne was quick to post a lengthy apology to Twitter blaming his past behaviour on being “raised in a homeschool conservative environment in a small town in Arkansas.” Writer and director of the film Gavin J. Konop also came in for criticism after Twitter user @Berkmanboom shared screenshots of Konop using racial and homophobia slurs In a YouTube video that addressed the controversies facing the film titled “Addressing Everything”, Konop attempted to explain his past actions as well as claiming some of the screenshots were fake. “In my first couple years of high school, I’m gonna be honest I was pretty much a giant loser. I was online way too much, I was part of these group chats and communities where I very often said the most offensive things I could think of to get attention from people.” He also said that he takes “full responsibility” for his actions and admits that he knew “I was wrong, I wasn't raised knowing these things were not okay to say.” Spider-Man: Lotus (Fan-Film) www.youtube.com In the few days since it was made available to watch on YouTube it has been viewed more than 2 million times – but there are some who will have been put off by details behind the scenes clouding the film’s production. Lotus takes place in the aftermath of Gwen Stacy’s death and focuses on Peter Parker as he deals with the fallout. Many will be wondering how it stacks up - these are the biggest talking points about the film itself, aside from the controversy behind the scenes, and some of the biggest criticisms aimed at it over recent days. Overall length and long establishing shots One of the most common points made about the film is that it’s just too long. It’s close to an hour and 45 minutes in length and there is too much padding – a lot of it coming in the form of generic shots of New York. Turning Peter Parker into a completely unsympathetic character Parker deals with the death of Gwen Stacy by lashing out at others a lot of the time. That in itself wouldn’t be an issue, as many people might do the same in such a stark situation. However, some social media users have claimed that Parker in Lotus is a fundamentally unsympathetic character. Ultimately, any film would be close to unwatchable when the superhero himself is an insufferable character who continuously puts others down. This moment early on in the film which shows Mary Jane coming to check on him in a show of support, only for him to unload a character assassination her way, is one that shows exactly the point they’re making. Parker's conversation with a terminally ill child is all about himself There’s one extended sequence people have focused on in social media discourse, and that’s the moment Spider-Man “trauma dumps” on a young boy with terminal cancer. After receiving a letter explaining a super fan of his is unwell, Parker goes to see him twice. The first scene had the potential to be quite a sweet moment in the film, but instead, Peter Parker seems to reject the child’s love of Spider-Man and questions why the kid is a fan of his and not Captain America, before talking about Gwen Stacy’s death. “It’s my fault…” he says. “I can’t do anything about it, no matter how hard you try. I’m not the hero you think I am. All of this, it’s not me.” He then dismisses the young boy's feelings and tells him he doesn’t understand because he’s “just a kid”, before leaving. It feels a little strange tonally and again shows Parker's lack of self-awareness to consider the feelings of a terminally ill child before his own. He later returns and apologises, looking back at a load of his old adventures and sparking a series of flashbacks, giving him fresh determination to wear the suit, but the sequence has attracted some criticism online. Parker’s dress sense It’s a minor gripe one, for sure, but some people have pointed out that the fact Parker dresses like a trust fund kid at a yacht club dinner goes against the key principles of the character familiar to many from the comics. The CGI The opening few minutes feature some of the strongest moments of the entire film – and it’s pretty impressive to see this version of Spider-Man navigate New York. But while it’s unfair to criticise a fan film that costs relatively little to make for its CGI, it is true that some moments look great while others, less so. Even CGI in multi-million dollar films can look cheap at times, though, so it’s not surprising that fans used to the biggest productions would pick faults with some moments from Lotus. Others, however, did defend it. One viewer wrote: “No way people are complaining about the CGI in #SpiderManLotus. It’s literally a fan-made film. Hate all you want on it, but pointing out bad CGI in a fan-made film is just dumb.” A lack of action The film is very much a character piece, focusing on the personal relationships of Peter Parker, Mary Jane and Harry Osborne with lots of long, dialogue-heavy scenes, and some have pointed out that film is lacking in action sequences. The opening few minutes feature a short fight with the Shocker, and there’s a brief scuffle with the Green Goblin in a flashback sequence. However, some were left feeling that they expected more action from a Spider-Man film – even a fan-made one. Sign up to our free Indy100 weekly newsletter 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.

It’s summer and cars have become ovens. But you don’t need to suffer.

Vladimir Putin’s warplanes have dropped “explosive objects” into the paths of civilian shipping lanes in the Black Sea, the region’s military command said. “The occupiers are continuing to terrorise the paths of civilian shipping in the Black Sea with tactical aviation, dropping explosive objects into the likely paths of civilian vessel traffic,” it said. “There were three such drops registered in the last 24 hours. However, the navigation corridor continues to function under the watch of the defence forces.” Ukraine is trying to build up a new shipping lane without Russian approval to revive its vital seaborne exports. But Russia said it would consider any vessel a potential military target after it quit UN-brokered deal allowing Ukrainian goods to pass through. It comes as Ukrainian troops have made confirmed advances against Russia on two fronts, according to the Institute for the Study of War. “Geolocated footage posted on 30 October shows that Ukrainian forces have advanced northeast of Kurdyumivka (10km southwest of Bakhmut),” it said. Ukrainian forces have also “marginally advanced” west of Robotyne, Zaporizhzhia, according to geolocated footage seen by the think tank. Read More Ukraine suffers most intense bombardment of Russian shelling in a single day this year, Kyiv says North Korea likely sent more than million artillery shells to Russia, says South Korea’s spy agency Putin is expected to seek reelection in Russia, but who would run if he doesn't?

The other suspect has been identified as a male juvenile by the deputies in Knox County

Respawn revealed the Apex Legends: Hunted patch notes.

Just days before a national election to pick a president and lawmakers, one word is on the lips of most...

German prosecutors say it will take time to examine materials recovered from this week's search in Portugal.