Do Air Conditioner Outdoor Units Need to Be Covered? The Truth is Out There!In the sweltering heat of summer, air conditioners become our essential weapons against the scorching sun. However, whether the outdoor unit of our air conditioner needs to be covered, exposed to the sun and rain, has become a lingering question in many people's minds...

20th Anniversary of Wang Wei's Disappearance: Reflecting On Aviation Rescue Technology and ChallengesThe disappearance of Wang Wei revealed the immense challenges faced by aviation rescue:In cases similar to Wang Wei's disappearance, the pilot's survival environment is often extremely harsh, making time a critical factor. Rescue teams need to pinpoint the missing pilot's possible location as quickly as possible and initiate precise rescue operations...

China's First Female Astronaut, Liu Yang: From Shenzhou-9 to Shenzhou-11, She Never Stopped Reaching for the StarsI. From Pilot to Astronaut: Liu Yang's Journey of Pursuing DreamsOver these 12 years, Liu Yang, with her outstanding flying skills and courage, flawlessly completed numerous flight missions...

Why Does America Favor Concrete Roads, While China Prefers Asphalt?Roads are vital arteries connecting cities and countryside, driving economic growth. Across the globe, nations choose different pavement materials for their highways...

From the Golden Decade to the Cliff-like Decline: A History of the Rise and Fall of Internet Cafes in ChinaOnce upon a time, nothing was more lucrative than opening an internet cafe. A cafe costing 100,000 yuan could easily generate over a million yuan in annual revenue...

New Trend in AIGC Application: Rise of In-App AI Plugins, Three Camps EmergeThe landing speed of AIGC applications in China is astonishing. Besides independent AI applications, in-app AI application plugins are also emerging...

Cement: From Invention to Application, Unveiling the Evolution and Future of Building MaterialsCement, an indispensable material in modern construction, traces its roots back to the early 19th century. In 1824, Joseph Aspdin, an Englishman, invented cement by mixing limestone and clay and burning them at high temperatures...

Gratitude and Betrayal: The True Stories of Two Peking University AlumniGratitude is a traditional virtue in Chinese culture. However, in real life, there are always stories that make us wonder if kindness can be reciprocated, and if doing good deeds will always lead to good outcomes...

How Desperate Can the Average Person Get Due to Information Gap? Netizens: Why Haven't I Heard of This?"Three Supports and One Help" is short for "supporting education, agriculture, and poverty alleviation," a grassroots service program aimed at college graduates. This program provides graduates with a certain amount of subsidies and benefits, helping them gain work experience and contribute to society...

Airplane Mode on Your Phone: A Super Useful Feature You Can Use Every DayIn our daily use of smartphones, we often see the option Airplane Mode, but many people may not be aware of its true purpose. Today, let's take a closer look at this seemingly simple but powerful phone setting and see why it can be a powerful tool in our daily use...

China's Breakthrough in Gas Turbine Technology: The Launch of the G15 Heavy-Duty Gas Turbine Ushers in a New Era for New Energy Development...

The "X-ray Eyes" of Security Scanners: A Balancing Act Between Security and Privacy"Stop, there's something wrong with your luggage." The security officer said to a female passenger...