Hangzhou hosts the 19th Asian Games from September 23rd to October 8th, 2023. The Games are very smart thanks to the use of many exciting technologies. The place for the tennis finals(决赛)is sometimes called the "Small Lotus". On the top of the sports centers, there are eight "petals"(花瓣). Each petal weighs 160 tons. They can open and close freely. It takes 15 minutes for each petal to open and close. It's built this way for different kinds of weather.
What if there's an accident during the game and the athletes need first aid? Drones (无人机) can be used to send things over. They can fly as far as 20 kilometers and travel 16 meters in one second.
Every dish at the Asian Games should be safe and healthy to eat. In the kitchen of the athletes' village in Hangzhou, there is a special system that can tell people's faces. If a stranger goes into the kitchen, an alarm will go off to let people know. Do you want to walk around at the stadiums but can't make it in person? You can try the Hangzhou Asian Games' metaverse (元宇宙)! You can try it with an app on Alipay. You can enjoy the charm (魅力)of the stadiums both from the outside and inside.
It will be sad if you can't find your way. Augmented reality (AR) is here to help. There's a mini-program called the Hangzhou Asian Games AR service. You can simply turn on your phone's camera, and it will see where you are and then show you the way.