Most people use cabbage for cooking but it can also be really great for your at-home chemistry experiments. Check out the cool chemistry stuff you can do with a red cabbage! Add about 1 cup of water, ...
This week (3.10-14), domestic liquid ammonia rose. According to the Commodity Market Analysis System of SunSirs, the weekly increase of liquid ammonia in Shandong region was 1.0%. The main reason was ...
If you were tasked with designing a color video monitor, it’s pretty clear how you’d go about it. But what if you’d been asked to do so 20 years ago? Would it have been a cut and dried from ...