cell farm farmer field phone technology cells focus Fractal fractals fuzzy sharp structure sundfractals amorphous background blue crystal crystals electricity electronic electronics energy grid power solar sun tech texure voltage electric photovoltaic biology blood capillary education haemoglobin human laboratory life microscope microscopy oxygen red red blood cells science slide smear tiny antenna architecture cell phone cell phone tower communication communication tower design engineer engineering metal radio radio tower tower base basestation cellular equipment pole radiate radiation receiver repeater sky station stations steel telephone telephones transmitter