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 submerged.

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.

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 you follow, curated …

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 going …

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 expanding the …

The periscope is the eye of the submarine. It was invented and developed solely for the purpose of providing a means to view the surface without fear of detection by surface craft. While it is primarily …

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.

Periscope was a live‑video streaming app, launched by Twitter in March 2015. It let you broadcast real-time video from your phone (or tablet) and chat with viewers through comments and “hearts” — kind …