It is common that children spend a great deal of time on the screen. As a new tool, an Australian app appears to help parents in the battle over screen time. It asks kids to solve one math or English problem before they can unlock their phones.

Sydney entrepreneurs(企业家) Issac and Ann EInckave turned their smart idea into an app called 1Qucstion and tried it on their 16-year-old daughter Alyssa.

Alyssa said, “At first I wasn’t sure about it. I didn’t want my friends to blame me if their parents used it to control their screen time. But once I started using it, I realized it doesn’t take so long to answer a question and it’s actually fabulous.”

Research shows almost 50% of children aged 6 to 16 cither have a mobile phone or have access to one. The majority play games or use apps like YouTube for about five hours a day on average. “The 1Question app creates micro learning moments, ”Mrs. Elnekave said. “We created a solution that combines screen time with study. ”

With $2.99 a month, parents can download the app onto their child’s phone, select their grade and curriculum subjects, then control each time their child correctly answers a question to open a game or app such as YouTube.

“We designed the user experience to be really simple, but under it is our extremely intelligent AI engine, ”Mr. Elnekave said. “As your child learns, so does the AI, which works out each child’s areas of strength and weakness and creates a suitable path for their learning. ”

The app has a base of 12, 000 questions developed by teachers using the Australian, British and American curriculums designed for primary school children.

5G wireless networks are ready to power the cities of tomorrow. However, exact implementation (实施)of 5G will vary from city to city, with each city having its own unique set of priorities, requirements, and objectives.

Since 5G enables countless service possibilities, cities must develop strategies around their specific needs. Business and civic leaders play a decisive role in this process, helping to drive smart city initiatives and ensuring that key infrastructure (基础设施)elements are in place.

Several urban areas, including Los Angeles, Dallas, Houston, Atlanta, and Chicago, are early to benefit from 5G For operators, these large urban centers offer a critical mass of solid infrastructure to support 5G’s complex technology requirements.

Now, regional and local governments play a critical role in positioning their cities to become early 5G adopters. They have a growing responsibility to streamline the permitting process, change fee structures, and minimize regulator hurdles in order lo enable greater 5G implementation.

Efforts are already in full force by industry players to overcome challenges for a smooth build-out in areas where 5G is needed first. As business leaders take a more active role in ensuring that they are well-positioned to better 5G services, they also increase their ability to transform their organizations into smart companies. Peter Linder, head of 5G marketing for North America at Ericsson, emphasizes the critical role individual leaders can play in making 5G and smart cities a reality. “5G will be introduced in urban areas first, driven by consumer and business’s needs,” he says. “Proactive city leaders appreciate the potential value of 5G for developing smart city solutions and will partner with service providers to speed up vital network development.”

The role of business and civic leaders as stimulators for encouraging 5G adoption is decisive to creating smarter, safer, and cleaner cities. The time is right for urban leaders and business executives (执行官)to work together toward making smart cities a reality.

The Internet’s carbon footprint is as bad as air travel. While it is difficult to measure precisely, estimates place it at over two percent of global greenhouse gas emissions(排放)—the same as the air travel.

Information may appear to spread around the world unseen to our eyes, but it actually passes through enormous data centers placed strategically about the globe, which store, organize and deliver everyone’s data. These centers are extremely energy intensive. In the EU, they consume close to three percent of its total energy usage and also require lots of water to prevent their computers from overheating. In the US, about a fifth of data centers draw water from already stressed water sources.

A typical spam email(垃圾邮件)emits around 0.03g of CO₂ emissions, though longer messages read on a laptop can go all the way up to 26g. Now multiply that by 333 billion(roughly the number of emails that get sent every day in 2022). That puts all those work emails into perspective. One study found if every British adult sent one less “thank you” email a day, it would save 16, 433 tons of carbon a year. It even predicted that the ICT industry could account for up to a fifth of the world’s energy consumption by 2025.

However, there are measures that we can take to reduce our digital carbon footprint. For instance, you can unsubscribe from marketing and other spam emails and only subscribe to newsletters that you still regularly read. Have regular data checks where you delete old contact lists and other documents that no longer have any use. Keep a clean inbox and delete emails you no longer need.