Now in Energy
Waves, Currents & Electrical Potential
Hydrokinetic power, which taps flowing water in rivers, tides, and ocean currents, is an emerging source of clean, renewable energy.
Engineer Charles Greenwood describes the HumanCar, a human-powered vehicle which can reach speeds of 40 mph and beyond. Whether for exercise or alternative transportation, find out the origins and new plans for this invention.
Coating solar panels with an 8-nanometer-thick hydrophobic material keeps rain and condensation from accumulating on the panel, which also washes away the dust and pollen that would normally accumulate and reduce the energy efficiency of the panel.