A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. [1][2]

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The meaning of PERISCOPE is a tubular optical instrument containing lenses and mirrors by which an observer obtains an otherwise obstructed field of view.

periscope, optical instrument used in land and sea warfare, submarine navigation, and elsewhere to enable an observer to see his surroundings while remaining under cover, behind armour, or …

Periscope is a social network that allows users to broadcast and consume live-streamed video content. On March 31st, 2021, Periscope was shut down because the cost of maintaining and …

Periscope was a mobile app launched in 2014 that allowed users to broadcast live video to a global audience. Acquired by Twitter in 2015, it quickly gained popularity but faced declining …

You can watch Periscope broadcasts on Periscope and X on iOS, Android, and web. On Periscope, the Watch Tab is where you go to watch live broadcasts and replays from people …

Jun 9, 2025 · A periscope is an optical instrument that enables viewing over, around, or through obstacles when a direct line of sight is not possible. It reflects light using angled mirrors or …

Periscope was acquired by Twitter before it was launched in 2015; however, Twitter shuttered the service at the end of March 2021 because of declining usage and the high cost of maintenance.

A periscope is a simple optical tool that lets you see over walls or around corners. It uses two mirrors or prisms placed at an angle to reflect light from the object to your eyes.