exhausted black man is training on exercise bicycle in gym, spinning pedals and moving handles, active cardio workout for developing endurance and power, breathing hard in fitness center
Spinning wind power turbines along a sea shore by sunrise or sunset.
Spinning wind turbine and electrical equipment - power generation from wind
Blue Planet Earth background Globe spinning on magnetic power model
Blue Planet Earth background Globe spinning on magnetic power model
Spinning wind turbine and electrical equipment - power generation from wind