15x AMA Champion Ricky Carmichael and 9x AMA Champion Ryan Villopoto recap the week in Pro Motocross and Supercross. A Division of NBCUniversal. DISCLAIMER: This site and the products offered are for ...

[Ben] may be 15 years old, but he’s got the knack for 3D printing and artistic mechanical design. When you see his 3D-printed mechanical jellyfish lamp, we think you’ll agree. Honestly, it is hardly ...

Planet or Plastic? is National Geographic’s multiyear effort to raise awareness about the global plastic trash crisis. Come to this page often to learn more, and find out what you can do to reduce ...

Abstract: This article focuses on a nonisolated dc–dc converter with main and auxiliary converters intended for railway applications. The conventional auxiliary converter is composed of multiple ...

Abstract: Household applications such as refrigerator compressors, washing machines, evaporative air conditioners, etc. are often run by Induction Motors (IMs) at two operating speeds. The transition ...