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]

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 is grateful to you for going LIVE together and being part of this community. Past public broadcasts will continue to be available on Periscope web. Learn more. Keep the conversation …

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 …

Periscope is a live-streaming service similar to the likes of Justin.tv (and its Twitch.tv successor) which has been around since March 26th, 2015, with a strong focus on mobile devices.

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

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.

A periscope is a vertical tube which people inside submarines can look through to see above the surface of the water. The submarine was at shallow enough level to have its periscope above …

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 …