Engineering consultant Frank Hertel outlines a method of measuring an inductor’s value using only an oscilloscope and a signal or function generator.

With over 10 years’ experience writing about consumer affairs, Sarah leads on energy content at Which?, helping customers navigate the market and exposing poor practice. Here we’ve listed the issues ...

Bayangol (right) and one of his students ride on the grassland near his home in the Inner Mongolia autonomous region. QI HONGYAN/FOR CHINA DAILY Breeders and racers are keeping alive the culture and ...