Let's examine the two key components of electric cars—the motor and the batteries—in a bit more detail and compare them with what we have in a conventional car.Photo: It's not rocket science—or is it? NASA had to use electric car technology to drive its Apollo Lunar Roving Vehicle ...
(yellow) is a light sensor (either a CCD or CMOS sensor); 16 (green) is the main circuit board; 20 (brown) is a digital display; 18 (purple) are buttons for switching the pen on and off or controlling simple menu functions; 15 (orange) is the battery; 19 (blue) is the wireless...