For example, spirit level and plumb - they are built inside plants, to help maintain correct direction of roots to grow down and stems up. Luxmeter - to monitor how much light is available and where, which direction, and leaves and ripening flowers are rotating and opening-closing. The stems and leaves are under very high voltage potential of the storm cloud (its voltage related to earth is several billion volts) moving a little like leaf or stem electroscopes, rotating in several directions, without any need of any lightning discharge at their close range. At first it seemed that in the field would be detected at most any passive components - resistor, capacitor, coil.
Kwa mfano, kiwango cha roho na timazi - wao ni kujengwa ndani ya mimea, ili kusaidia kudumisha mwelekeo sahihi wa mizizi kukua chini na inatokana up. Luxmeter - kufuatilia jinsi mwanga kiasi inapatikana na ambapo, ambayo mwelekeo, na majani na maua yakawiva kupokezana na kufungua-kufunga. mashina na majani ni chini ya Potential sana high voltage ya wingu dhoruba (voltage yake kuhusiana na ardhi kwa Volts kadhaa bilioni), kusonga kama jani kidogo au electroscopes shina, kupokezana katika pande kadhaa, bila ya haja yoyote ya kutokwa yoyote umeme saa mbalimbali karibu yao . Mara ya kwanza walionekana katika shamba Hiyo Je Kuwa wanaona katika vipengele yoyote zaidi passiv - resistor, capacitor coil.