Philadelphia police said suspect Robert Davis might have been well known to the victim

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.

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A shocking scene played out in the wealthy Washington DC neighborhood of Kalorama on Thursday as a man was chased by police and Secret Service while he ran towards the home of former President Barack Obama — and as the man warned authorities that he had an explosive device. According to the DC Metropolitan Police Department, 37-year-old Taylor Taranto was arrested near Mr Obama’s home on Thursday. CBS News reported that he fled after being spotted by Secret Service, who had apparently been alerted to his intentions after Mr Taranto made “threats during recent livestreams on social media”. Mr Taranto had an active arrest warrant related to the attack on the Capitol when he was captured near the former president’s home, according to CBS. DC police confirmed to The Independent that Mr Taranto had been charged with being a fugitive from justice pursuant to another arrest warrant, and that officers had conducted an explosives sweep of his vehicle. “This afternoon, MPD and our federal law enforcement partners arrested 37-year-old Taylor Taranto, of no fixed address, in the 2400 block of Kalorama Road, Northwest. He has been charged with Fugitive from Justice, pursuant to an arrest warrant. Arresting officers requested MPD's Explosive Ordnance Disposal (EOD) Team to perform a vehicle sweep of the individual's van near the location of the arrest. There is no active threat to the community and this incident remains under investigation,” wrote an MPD spokesperson. It wasn’t immediately clear if Mr Obama or any members of his family were home at the time of the incident. The former president was in DC just two days ago for lunch with his former VP, incumbent President Joe Biden, as the latter begins the long work of running for re-election. The Independent has reached out to US Secret Service for further details. Read More Biden’s economy pitch: Campaign like Reagan while refuting Reagan’s policies Affirmative action is out in higher education. What comes next for college admissions? DeSantis accused of breaking the law with Texas border trip

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Ukraine has made gains against Vladimir Putin’s forces in a “particularly fruitful” few days in the war with Russia, a top official has said. Oleksiy Danilov, one of Ukraine’s most senior security officials, said Ukraine’s army were achieving their “main tasks” as he spoke about the counteroffensive on Tuesday. “At this stage of active hostilities, Ukraine’s Defense Forces are fulfilling the number one task - the maximum destruction of manpower, equipment, fuel depots, military vehicles, command posts, artillery and air defence forces of the Russian army,” Mr Danilov wrote on Twitter. “The last few days have been particularly fruitful,” he said, without providing any details from the battlefield. His comments come after Ukraine’s president Zelensky said on Monday his troops had made progress after a “difficult” week. Ukraine said on Monday its troops had regained more ground on the eastern and southern fronts although deputy defence minister Hanna Maliar said fighting had surged around the eastern city of Bakhmut, captured by Russian forces in May. Maliar said the Ukrainian military had taken back 37.4 square kilometres of territory in the past week. Read More Vladimir Putin claims Russia ‘united as never before’ as prominent journalist is beaten Ukrainians honor award-winning writer killed in Russian missile attack on restaurant Putin claims Russia is united than ever just days after Wagner troops march on Moscow Georgia condemns Ukraine for its protests over health of former president Saakashvili

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