Here's how players can rotate buildings in the popular city-builder, Cities: Skylines 2.

Scientists have achieved a new world record for a next-generation solar cell, which holds the promise for novel applications like building-integrated and window solar panels. The breakthrough follows two years of research from the Hong Kong Polytechnic University into organic solar cells (OSCs), which until now have been too inefficient and costly to be used widely in practical applications. The research team invented a new technique to boost the stability of OSCs, achieving a power-conversion efficiency of 19.3 per cent. “The new finding will make OSC research an exciting field, and this will likely create tremendous opportunities in applications like portable electronics and building-integrated photovoltaics,” said Li Gang, a professor of energy conversion technology at Hong Kong Polytechnic University. “This is a very encouraging result for the long-standing research on OSCs that I have conducted over the past two decades. We have already achieved better OSC efficiency and this will subsequently help accelerate the applications of solar energy.” Professor Li and his team believe an efficiency rate above 20 per cent is now achievable using their new technique. The research is detailed in a study, titled ‘19.3% Binary Organic Solar Cell and Low Non-Radiative Recombination Enabled by Non-Monotonic Intermediate State Transition’, published in the scientific journal Nature Communications. The 19.3 per cent efficiency record is still a long way off other solar cell technologies, with researchers passing the 30 per cent barrier last year with a tandem design that used the so-called “miracle material” perovskite. OSCs are more lightweight and flexible than traditional silicon-based solar panels, as they consist of thin layers of organic semiconducting materials. The materials used are more environmentally friendly and 1,000-times thinner than silicon solar cells, meaning they have the potential to be vastly cheaper. They are also semi-transparent, allowing them to be used not just within building materials, but also on windows. Dozens of startups are already working on novel applications for harvesting solar energy, such as London-based Filia, which integrates solar technology into blackout blinds. California-based Ubiquitous Energy raised more than $30 million last year to push forward its vision of turning skyscrapers into “vertical solar farms” through the development of windows capable of converting sunlight into electricity. The firm aims to begin production at some point next year following further research and development. Read More Electric car range set to double with first production of breakthrough battery Solar panel efficiency to increase 50% with first production of ‘miracle’ tandem cells Solar panel efficiency to increase 50% with first ‘miracle’ tandem cells Elon Musk’s private jet lands in China for billionaire’s first visit in three years WhatsApp set to add major features including a new username system

Elon Musk’s decision to change the Twitter logo to an X has been mocked for looking like a porn site, with pictures to prove it. Since his takeover of the social media platform Twitter, Musk has made multiple significant changes that have left users baffled. Some changes affect the way users are able to interact with others, based on their verified (i.e. paid for) status, while other changes are more superficial. The latest idea has seen Musk change the iconic blue bird logo of 15 years, replacing it with a white X on a black background that many have compared with porn sites. Porn sites such as XVideos and XNXX feature logos that are variations of the letter X and comedian Jesse McLaren pointed out how true the comparisons are after sharing a screenshot of a Google Chrome page with six tabs all bearing logos that are very similar. Sign up to our free Indy100 weekly newsletter McLaren wrote: “These are all porn except one. That one's Twitter.” The tweet has been viewed over 4 million times and sparked a conversation about the design of the logo. Someone commented: “It’s the fact that if I had to guess which one out of these was a porn site, my immediate first guess would be the Twitter one.” Another said: “I have a feeling that this will become an interesting case study in marketing and branding classes.” “Unethical, degrading, and perverted. Also there are some porn sites there I guess,” one Twitter user joked. Someone else argued: “Twitter is a porn site too.” Industry experts have cast doubt over Musk’s rebrand decision, particularly at a time when other competitors such as Meta’s Threads have entered the market. Mike Proulx, research director at the analysis firm Forrester, told the Guardian: “By changing Twitter’s app name, Elon Musk will have singlehandedly wiped out over 15 years of a brand name that has secured its place in our cultural lexicon.” He continued: “This is an extremely risky move, because with ‘X’, Musk is essentially starting over while its competition is afoot.” 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.

Fortnite 24.40 update teases new 'Star Wars' challenges

The United Arab Emirates set stricter target for reducing carbon emissions as it prepares to host a major

Listen to The Big Take podcast on iHeart, Apple Podcasts, Spotify, Terminal. The US Battery Belt, which stretches

LG has its fingers in all sorts of products, from home goods to TVs, but

TikTok and a group of five content creators who are suing the state of Montana over its first-in-the-nation law to ban the video sharing app are now asking a federal judge to block implementation of the law while the case moves through the courts

Facebook Marketplace is the most complained-about online retail platform for selling counterfeit, poor-quality and potentially unsafe goods, Trading Standards has reported. The online giant, which enables third-party sellers to trade goods on the platform via the marketplace, was criticised for being slow to take action against problem sellers and for enabling misleading product descriptions, counterfeit goods and potentially harmful products to reappear on its platform after being taken down. A national survey by the Chartered Trading Standards Institute (CTSI) found the online giant causes its officers the most concern, as well as being unresponsive or unco-operative when contacted about problem sellers. More than half (53 per cent) of respondents representing about 50 local authorities across the UK identified Facebook as the most complained-about online marketplace – more than all of the others combined. If it wants to be seen as a proper online retailer where people can buy safe and legitimate goods, it needs to start acting like one CTSI chief executive John Herriman The CTSI’s survey, the first of its kind, also found that Trading Standards teams were unable to properly address problems with online marketplaces because of a “triple whammy” of recurring issues – unco-perative businesses, unsuitable legislation and limited resources. Just 10 per cent of Trading Standards officers said they had been able to take action against online marketplaces as a result of these three obstacles. The CTSI’s survey found that 45 per cent of officers cited a lack of co-operation from online marketplaces as a recurring problem, 63 per cent said the law as it stands is not fit for purpose and 57 per cent had received no response when attempting to contact sellers on online marketplaces. Some 59 per cent said they had been unable to locate details about where third-party sellers on online marketplaces were based and 29 per cent said they wee unable to deal with complaints about online marketplaces because of a lack of time and resources. CTSI chief executive John Herriman said: “Facebook Marketplace needs to up its game. At a time when more and more people are going online to buy things, there is a real urgency for online retailers to take their responsibilities to their customers more seriously. Currently, online marketplaces like eBay and Facebook Marketplace are operating with fewer safety regulations than traditional high street retailers, eroding fair competition and allowing the sale of unsafe goods to flood the market unabated Martyn Allen, Electrical Safety First “The fact that Facebook Marketplace is an offshoot of a social media platform rather than a service that was built as an online retailer from the ground up speaks volumes. If it wants to be seen as a proper online retailer where people can buy safe and legitimate goods, it needs to start acting like one. “Failing to take action against sellers who use their platform to mislead, rip off and potentially endanger consumers just isn’t good enough. “We are calling for all online marketplaces to take action against problem sellers, for the law to be tightened up so enforcers have more tools at their disposal to protect consumers, and for more resources that enable us to do that more effectively.” A Meta spokesman said: “We take these issues seriously and when we find listings that violate our rules, we remove them. “We also work closely with external partners and respond to valid legal requests from law enforcement and the Office for Product Safety and Standards, to prevent illegal activity on our platforms.” Phil Lewis, director general of the Anti-Counterfeiting Group (ACG), said: “Criminals rely on legal e-commerce platforms, social media, maritime freight companies, express couriers, airlines, postal services and internet hosting services to set up rogue shopping sites. “ACG is calling on government to recognise the growing international threats to our families, job-providing businesses and the economy. “Appropriate enforcement resources and a policy architecture are desperately needed to ensure the companies providing these services work alongside our enforcement authorities and businesses, to combat this intensifying threat.” Martyn Allen, technical director of the charity Electrical Safety First, said: “Sadly, the high number of complaints Trading Standards officers receive regarding online purchases comes as no surprise. Online retailers like Facebook Marketplace need to be held to account just like any other type of business, otherwise consumers and legitimate businesses lose out Yvonne Fovargue, APPG on Consumer Protection “Currently, online marketplaces like eBay and Facebook Marketplace are operating with fewer safety regulations than traditional high street retailers, eroding fair competition and allowing the sale of unsafe goods to flood the market unabated. This puts UK citizens at serious risk of injury and harm. “It’s been a year and a half since the UK Government promised publication of the Product Safety Review, which is expected to include proposals to protect British consumers when they shop online. “The time for waiting is over – the Government must prioritise publishing the Review without any further delay.” Yvonne Fovargue, chairwoman of the All Party Parliamentary Group on Consumer Protection, said: “Since the pandemic and now, with the cost-of-living crisis, more people are buying products from online marketplaces. “These consumers deserve to be treated fairly and should be able to be confident that what they buy is safe and accurately described. “Online retailers like Facebook Marketplace need to be held to account just like any other type of business, otherwise consumers and legitimate businesses lose out.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live UKRI announces £50 million to develop trustworthy and secure AI ‘Last Beatles record’ was created using AI, says Paul McCartney Put ‘public good’ at heart of AI and new tech, Starmer to say

The Federal Open Market Committee meets Tuesday and Wednesday, and is scheduled to announce its monetary-policy decision on Wednesday.

Epic Games teased the return of Fortnite Chapter 1 maps, skins, and music in packages sent to content creators, revealing the OG theme of Chapter 4 Season 5.

'The Joe Rogan AI Experience' launched on YouTube with an episode of Joe Rogan in conversation with Open AI's CEO Sam Altman