Gandō
A gandō (龕燈; lit. 'niche lantern') was a type of Japanese gyroscopic lantern invented in the early 17th century. Using a unique method of directional light projection, it was comparable in use to a modern flashlight.
A gandō (龕燈; lit. 'niche lantern') was a type of Japanese gyroscopic lantern invented in the early 17th century. Using a unique method of directional light projection, it was comparable in use to a modern flashlight.
A gandō (龕燈; lit. 'niche lantern') was a type of Japanese gyroscopic lantern invented in the early 17th century. Using a unique method of directional light projection, it was comparable in use to a modern flashlight.
Source: Wikipedia "Gandō" · CC BY-SA 4.0
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