BGSF, Inc. (NYSE:BGSF) Q4 2024 Earnings Call Transcript
Q4 2024 Earnings Call Transcript March 13, 2025 Operator: Good day, and welcome to the BGSF, Inc. Fiscal Year Fourth Quarter ...
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Laser Microphone - Capturing Sound Through Reflected Light
A YouTuber recently showcased a homemade laser microphone, a surveillance device capable of picking up sound from a distance by analyzing how a window vibrates. Originally used in espionage, this ...