A focused tutorial on worsted yarn spinning techniques, demonstrating both the short forward draw and short backward draw. The video contrasts the methods, discusses fiber control, and shows how each ...

Khadija Khartit is a strategy, investment, and funding expert, and an educator of fintech and strategic finance in top universities. She has been an investor, entrepreneur, and advisor for more than ...

Backward waves have recently attracted considerable interest in the context of photonic metamaterials 4, 5, where they form the basis for negative refraction 6 and underlie so-called perfect lenses 7, ...