List of All Articles with Tag 'pce'

Bruce Straley has put the stunt scenes side by side on Twitter.

They may not be as stylish as a DeLorean or as sturdy as a blue police box, but wormholes in space could hold the key to real-life time travel – and a team of experts think they’ve figured out how. The trio of scientists delved deep into the laws of physics and discovered that it might be possible for humans to one day zip across galaxies in a matter of seconds, or journey through time itself. Now, this is all to do with the general theory of relativity and quantum physics, so don’t expect to get your head around it too easily. However, in their paper, Valeri P. Frolov and Andrei Zelnikov of Canada’s University of Alberta, and Pavel Krtouš of Prague’s Charles University proposed that a specific kind of wormhole would “inevitably” be “transformed into a time machine” if it was subject to particular conditions. Sign up for our free Indy100 weekly newsletter For the uninitiated, wormholes can be described as spacetimes in which a “kind of tunnel exists connecting distant parts in the universe”. The main problem with them is… they don’t actually exist. At least not in any tangible way. As Drs Eric Christian and Louis Barbier put it in an explainer for NASA: “Wormholes are allowed to exist in the math of ‘General Relativity’, which is our best description of the Universe. “Assuming that general relativity is correct, there may be wormholes. But no one has any idea how they would be created, and there is no evidence for anything like a wormhole in the observed Universe.” Still, numerous experts in the field of gravitation and general relativity have spent years or even decades working on them, including Stephen Hawking in his time. For their paper, Frolov, Krtouš, and Zelnikov explored what is known as a ring wormhole, which was first described in 2016 by theoretical physicist Gary Gibbons, of Cambridge University, and Mikhail Volkov of the University of Tours. Unlike the spherical contortions of spacetime we might attribute to black holes, the ring wormhole proposed by Gibbons and Volkov connects sections of the universe (or, indeed, different universes) which are generally described as “flat”, as ScienceAlert notes. Ring-shaped masses could potentially create some pretty remarkable distortions in what would otherwise be flat spacetime if you consider how their electrical and magnetic fields might interact. And so Frolov, Krtouš, and Zelnikov decided to consider two types of such wormholes: “a wormhole connecting to flat spaces; and a wormhole connecting two distant domains in the same space”. For the latter, they concluded that if a “massive thin shell” surrounded one of the mouths of the ring wormhole, a “closed timelike curve” would form. This, as the name suggests, would mean that any travelling object (or ray of light) would come back to the exact same point whence it began. In other words, you could travel in space and time and return to your point of departure. The most exciting aspect of ring wormholes, as the authors point out is that: “For the ring wormhole an observer passing through it moves in a flat (or practically flat spacetime), while in the case of ‘standard’ (spherical) wormholes he/she should pass a domain filled with the matter violating the null energy condition.” Even without knowing what the “null energy condition” is, you can appreciate that the first option sounds a lot simpler. Now, before you start calling yourself Marty McFly or making a list of all the past mistakes you’d like to correct, we should stress that we’re a long way off seeing the creation of a bonafide, buckle-your-seatbelt time machine. But at least, thanks to the efforts of experts like Frolov, Krtouš, and Zelnikov, we’re at least one step closer to going back in the future. 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.

Joe Rogan and his guest Stephen Meyer discussed various topics during the 'JRE' podcast

Escapism is bliss, but knowledge is power. It's why the humble documentary is more important

By Philip Pullella VATICAN CITY Italian Cardinal Matteo Zuppi, tasked by Pope Francis to help bring peace to

Pope Francis’ peace envoy is traveling to Washington as part of the Holy See’s peace initiatives for Ukraine

Melanie Sykes has revealed she’s been diagnosed with Tourette’s syndrome. The 52-year-old I’m A Celebrity... Get Me Out of Here! star revealed the news of her diagnosis on her close friend Alan Carr’s podcast. Speaking of her diagnosis, Sykes said she’s “wired completely differently” and is “only now” understanding the impact of the neurological disorder on her life. Tourette’s syndrome may cause sudden unwanted and uncontrolled rapid and repeated movements or vocal sounds called tics. During the interview, when Carr assured Sykes that it was fine to swear during the conversation, she said: “Oh good, but I’ll try not to, because I’ve just discovered I have Tourette’s. “I describe in the book (Illuminated: Autism and all the Things I’ve Left Unsaid) how I laugh at really inappropriate things. I am wired a completely different way and I’m only just understanding it. “I used to think, ‘What’s wrong with me?’ Now I know it’s everything that’s right with me,” Sykes added. The new diagnosis comes two years after Sykes was diagnosed with autism. The presenter, who is known for shows like Let’s Do Lunch with Gino D’Acampo, said after the diagnosis that “finally, so many things made sense”. Sykes first revealed her diagnosis in an email to readers of her magazine, The Frank. She wrote that finding out she was on the autism spectrum, which can affect the way people with autism communicate and interact with others, was “life-affirming”. She has since been welcomed into the autistic community with messages from mothers of children on the spectrum and adults diagnosed late in life. “They’re so happy I’m talking about it, normalising it,” Sykes told the magazine. “Some people who were too embarrassed to tell anyone now feel they can. “It makes me extremely happy to know I’ve helped.” Sykes’ diagnosis comes after singer Lewis Capaldi recently announced he was taking a break from touring for the “foreseeable future” due to his Tourette’s. The “Someone You Loved” singer struggled with his performance on the Pyramid Stage at Glastonbury this year because of his tics, and appeared visibly moved by the huge audience who helped him sing his song. Following the show, Capaldi said he is “still learning to adjust to the impact of my Tourette’s” and needed to spend time taking care of his physical and mental health before he could return to touring. Read More Kylie Jenner and Jordyn Woods reunite four years after Tristan Thompson cheating scandal Nicole Kidman defends her controversial Vanity Fair mini skirt cover Alan Titchmarsh warns against ‘ill-considered’ rewilding trend in domestic gardens These are the women making waves in the cycling world Nappy changes and tantrums over Michael Gove: I took my toddler to a music festival Demi Lovato says she still struggles with vision, hearing impairment after overdose

Ryan Reynolds has already taken Hollywood to Wrexham

Dr. Dre turned down his idols because he didn't want his opinion of them to change.

Dolly Parton hopes she dies onstage because performing live is living her dream.

Dunne transformed herself into a character with a buzz cut and beard

Elton John has appeared as a defense witness in Kevin Spacey’s sexual assault trial