911-10505 - Asia's largest solar popwer station, the Gujarat Solar Park, in Gujarat, India. It has an installed capacity of 1000 MW. Here workers wash dust off the panels to increase their efficiency.
832-233304 - Apprentice grinding with an angle grinder in the welding workshop during a welding course of the School of the Chamber of Small Industries and Skilled Trades, Duesseldorf, North Rhine-Westphalia, Germany, Europe
832-233302 - Specialist lecturer demonstrating a computer numerical control (CNC) milling machine, Master Craftman School of the Chamber of Small Industries and Skilled Trades for carpentry, Dusseldorf, North Rhine-Westphalia, Germany, Europe