100000 euros. the aerial vehicle scans large areas with the devices like this magnetometer. it measures variations in the make let it field of the earth which helps to pinpoint mineral deposits without elaborate and costly drugs the ones who've been used in the you know we want to encroach as little as possible on people surroundings and environment because we want to gain acceptance on the population. the sun and the other aspects or efficiency and safety. droughns enable us to gather data rapidly without having to go there ourselves in. the data taken by the individual instruments are combined to give geologists an idea of the structure of the subsonic. * then they can guess where and which mineral they may find.