A 3-D-printed toilet has been invented and the surface is so slippery that nothing can leave a mark on it. Cleaning the toilet has to be one of the grimmest household chores, but thanks to new material, you may never have to scrub a loo again. The toilet is the invention of Yike Li at Huazhong University of Science and Technology in Wuhan, China, who, alongside colleagues, invented a toilet whose surface is so slippery that nothing stains it and uses less water for each flush. The team created a prototype of the toilet around 10 times smaller than a real one. It was made using 3D printing technology, where particles of plastic and hydrophobic sand grains were fused together with lasers. The surface of the toilet was lubricated with a type of silicon oil that also penetrated the surface due to the complex structure of the material. The team tested the toilet with a variety of substances, including honey, yoghurt, muddy water as well as synthetic faeces. They found that none of the substances stuck to the toilet bowl. Amazingly, the toilet was just as slippery after having been rubbed with sandpaper over 1,000 times, which Li believes is due to the oil being able to penetrate the material of the toilet. Li believes the technology would be suited for settings in which a toilet gets a lot of use, such as on modes of transport and in public toilets. He explained: “The reduced flushing volume would result in less wasted water during transportation to the processing facilities, thereby saving transportation costs.” But, before that can happen, Li says the technology needs to be adapted for use on a full-sized toilet and also needs to be cheaper to make. You can see the toilet in action below courtesy of New Scientist. Nothing can stick to this 3D-printed slippery toilet youtu.be 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.

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Al Roker has undergone his second knee replacement surgery, which had to be delayed after he was admitted to hospital for blood clots in his legs and lungs last December. The Today show weatherman, 68. has been reporting on the weather for the NBC morning show since 1996. Following his surgery, he returned to the programme on Tuesday (30 May). Roker has now said he is feeling “good” after the surgery on 9 May, which comes more than a year after his first knee replacement. He attended the Veuve Clicquot Polo Classic event in New Jersey with his wife Deborah Roberts over the weekend, which he said was his first public outing since the surgery apart from work. Speaking to People, Roker said: “[It’s] nice to be wearing nice clothes. Here we are. You can’t help but feel better.” Roker was rushed to hospital the day after Thanksgiving and remained there for nearly two weeks due to the blood clots. He told his followers on Instagram that he was admitted “with a blood clot in my leg which sent some clots into my lungs”. “After some medical whack-a-mole, I am so fortunate to be getting terrific medical care and on the way to recovery,” he said, thanking fans for their well wishes. In March, Roker said he “wouldn’t be alive” if not for Roberts, 62. He told PageSix: “I guess I know it now. I didn’t know it at the time. Deborah was great at keeping all that away from me so I thought I was doing OK but that was great because I was able to focus on getting better.” Roberts is the presenter’s second wife, who he married in 1995 after splitting from ex-wife Alice Bell the year before. He shares daughter Courtney, 35, with Bell, and two children Leia, 24, and Nick, 20, with Roberts. Read More Jessie J confirms identity of her baby’s father after ‘struggling to keep things private’ Husband of non-smoker, 24, who died two weeks after lung cancer diagnosis reveals single telltale sign How noise complaints became a very British obsession Pharmacist warns against one common hay fever habit 7 tips and tricks for hay fever relief A Place In The Sun’s Jonnie Irwin admitted to hospital amid terminal diagnosis

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Newcastle midfielder Sandro Tonali deserves “empathy and support” for his gambling rather than a reported 10-month ban, campaigners have said. The Big Step campaign, part of the Gambling With Lives charity, claims asking a footballer who is addicted to gambling to play in stadiums plastered in betting logos is akin to making an alcoholic work in a pub. Tonali, 23, has been suspended for 18 months, eight months of which has been commuted, fined 20,000 euros and been ordered to partake in an eight-month course of therapy to address his issues after reaching a plea bargain following an investigation into illegal betting conducted by the Italian Prosecutor’s Officer and the Italian football federation (FIGC). The player’s agent, Giuseppe Riso, has said his client is living with a gambling addiction. The PFA is understood to be working with and continuing to support Tonali. “Footballers are human and if they are suffering from addiction they deserve empathy and support, not lengthy bans,” the Big Step said in a statement issued to the PA news agency. “Every football game is wall-to-wall with gambling ads, not just across shirts but around stadiums and related media content. “Sending someone addicted to gambling into this environment is like sending an alcoholic to work in a pub. If you force young footballers to endorse addictive products then don’t be surprised if they use them. “Ending all gambling advertising and sponsorship in football, including all parts of the shirt and in every stadium, will help to prevent harm to those on and off the pitch.” The FIGC confirmed Tonali’s ban on Thursday afternoon, less than 24 hours after he made what will be his final appearance for the club which paid AC Milan £55million for his services this summer as a substitute in Wednesday night’s 1-0 Champions League defeat by Borussia Dortmund at St James’ Park. A statement on the federation’s official website said: “The Federal Prosecutor’s Office has reached an agreement (pursuant to art. 126 CGS) with the footballer Sandro Tonali, following which he will be sanctioned with an 18-month disqualification, eight of which will be commuted to alternative prescriptions, and a fine of 20,000 euros, for the violation of art.24 of the CGS which prohibits the possibility of placing bets on football events organized by FIGC, UEFA and FIFA. “Regarding alternative prescriptions, Tonali will have to participate in a therapeutic plan lasting a minimum of eight months and in a cycle of at least 16 public meetings, to be held in Italy, over a period of eight months, at amateur sports associations, federal territorial centres, for recovery from gambling addiction, and in any case according to the indications and program proposed by the FIGC. “The Federal Prosecutor’s Office will ensure compliance with what is indicated and, in case of violations, will adopt the measures within its competence, pursuant to the CGS, with termination of the agreement and continuation of the disciplinary proceedings before the sports justice adjudicating bodies.” Earlier FIGC president Gabriele Gravina had told reporters in Rome: “The rules call for a certain number of years of suspension, but the plea bargain and extenuating circumstances have been taken into consideration and the players’ collaboration went above and beyond, therefore we must continue to respect the rules we have established for ourselves.” Tonali was one of several players named in the FIGC’s investigation, which also saw Juventus midfielder Nicolo Fagioli banned for seven months. The suspension will mean he will not play again for Newcastle this season and will miss Italy’s Euro 2024 finals campaign should they qualify. Magpies boss Eddie Howe has promised his big money summer acquisition the club’s full support, although his absence could hardly have come at a worse time for the club with Alexander Isak and Jacob Murphy both having picked up injuries during the defeat by Dortmund, which Sven Botman and Elliot Anderson missed with existing problems. Read More Jos Buttler: My future as captain out of my hands as England near World Cup exit Maro Itoje praises ‘courageous’ Tom Curry for reporting Mbongeni Mbonambi There’s a long way to go – Ange Postecoglou staying grounded despite Spurs form Celtic will only get better at game management – Matt O’Riley Sandro Tonali’s reported ban brings calls for ’empathy and support’ from charity It doesn’t add up – North Wales Crusaders chief on IMG’s new grading system

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