In my previous video I described how to extract acetylsalicylic acid from Aspirin tablets. In this video, I will be hydrolyzing ester bond in the acetylsalicylic acid to form salicylic acid. Retired ...

Numberphile revived an ancient multiplication trick—halves and doubles—also called Egyptian or Russian math, where you repeatedly halve one number and double the other. After crossing out rows with ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Abstract: Fuzzy set theory is an effective tool for dealing with uncertainty. The basis for designing a fuzzy logic system is to establish a fuzzy rule base according to on-site experimental data or ...

There is one key difference between v1 and v2: v2 does not support the format pinyin-number-r (e.g., hua1r) for erhua pronunciation. Instead, it supports the format pinyin-r-number, such as huar1.