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 was an American live video streaming app for Android and iOS developed by Kayvon Beykpour and Joe Bernstein and acquired by Twitter, Inc. before its launch in March 2015. The …

Explore the world by watching and creating live broadcasts.

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 …

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.