About this video
This video shows how to build a real bat signal using a bright flashlight and a lens. It can project any image or act as a spotlight. You can learn about light projection.
🧠 Quiz & Trivia
Test your knowledge after watching!
Q1 What is used to make the bat signal?
Answer: A lensed flashlight beam.
Q2 What else can this setup do besides project a bat symbol?
Answer: It can act as a spotlight.
Q3 What kind of flashlight is used?
Answer: A very bright Imalent MS18 flashlight.
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