YouTuber builds 250-watt handheld laser 50,000x stronger than legal pointers. Can melt metal, create rubies-but exists in ...

Coffee & Cargo Bikes, Sunriver Pétanque Club, Farmers Market, Ceramic Seconds on 2nd, Adaptive Cycling Meet Up and more.

Abstract: Aiming at the problems of traditional plasma cutting power supply with harmonic pollution to the power grid, low output current control accuracy and large power loss, the stable full-bridge ...