在大自然中,電以形形色色的姿態出現。其中最顯著、最普遍的,就是閃電。鄰近北極地帶(如蘇聯的北方)的居民很熟悉這些雄偉的現象:有時候,在夜間的天空上出現了紅、紫、黄、綠各種顏色的寬闊的、明亮的帶子。它們形成火燄般的帷幕,它們離奇地捲起而又展開。這是“北極光”,它的產生就是由於電。在高山上,當空氣相當乾燥的時候,可以看到“電光”。它們表現爲在金屬物體的尖端上的小小的火燄。古 In nature, electricity appears in a variety of gestures. One of the most significant and common is lightning. Residents in the vicinity of the Arctic (as in the northern part of the Soviet Union) are familiar with these magnificent phenomena: sometimes, there are wide, bright bands of red, purple, yellow, and green colors appearing in the night sky. They form a flame-like curtain, and they are curled up and unfolded. This is the “Northern Light” and its production is due to electricity. In the high mountains, when the air is quite dry, you can see the “Electro-optic”. They appear as small flames on the tip of a metal object. ancient