The World of Cars: Your ChoiceChina Search Auto Moment Review A look at these bizarre cars crafted by masters -Pain- Today, we are not discussing the application of 3D printing technology, but rather talking about cars. Whether they are made of steel, aluminum, or 3D printed, over the past century, people have put a lot … Read more
Recently, a “technological breakthrough” has emerged in the circuit board recycling industry! A company in Anhui has applied for a new patent, intriguingly titled “A Device for Hydrometallurgical Recovery of Precious Metals from Waste Circuit Boards”—doesn’t the name alone make you feel like precious metals are calling out to you? In simple terms, the biggest … Read more
Waste printed circuit boards (PCBs) contain high-grade precious metals and are an important part of the electronic waste value chain. However, our country lacks key technologies for environmentally friendly extraction of precious metals. For a long time, outdated processes such as open-air incineration and acid leaching have been used to extract metals, resulting in serious … Read more
With the development of society, economy, and urban construction, waste management has increasingly become a major issue affecting the national economy and people’s livelihoods. In recent years, the “NIMBY” (Not In My Backyard) problem in municipal waste management has become a serious issue impacting sustainable urban development. Many cities are facing the situation where landfills … Read more
I have been tutoring high school mathematics in Sichuan lately. Although I haven’t done math problems in twenty years, I can still manage the exercises in the workbook. If there are problems I can’t solve, I can understand the thought process after looking at the answers. However, my student has stopped coming to class for … Read more