#851 What is St. Elmo’s fire?
What is St. Elmo’s fire? It is a glowing region that appears around tall structures, the masts of old ships, or the wings of aircraft. It is a plasma made…
What is St. Elmo’s fire? It is a glowing region that appears around tall structures, the masts of old ships, or the wings of aircraft. It is a plasma made…
I learned this today. The difference between AC and DC current is that in DC the charge only flows in one direction but in AC it changes direction periodically. Direct…