Does it really help to drive an electric car if the electricity you use to charge the batteries come from a coal mine in Germany, or if the batteries were manufactured in China using coal?
Dec 08, 2016 in Nanophysics
All cells have surface membranes, and this membrane is especially important in the light-sensitive cells of the eyes in your body. Within your eyes are millions of photoreceptors - nerve cells that capture light to form images ...
Dec 06, 2016 in Cell & Microbiology