Fulgurites are glass tubes formed when lightning strikes a desert or beach. Artificial fulgurites are made by running a high-voltage arc through a tub of sand. Read the rest
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Making "petrified lightning" at home
Fulgurites are glass tubes formed when lightning strikes a desert or beach. Artificial fulgurites are made by running a high-voltage arc through a tub of sand. Read the rest
View original post here:
Making "petrified lightning" at home