How does a submarine sense objects above water despite being deep under it? How can you look through walls? Well, its time to introduce your child to the wonders of Optics with Smartivity Eye Spy Periscope S.T.E.M. Educational D.I.Y. Toy kit. 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. This is achieved by using mirrors aligned in a particular pattern so that images are reflected multiple times and carried to the viewer without exposing the viewer. This kit contains all the elements needed to assemble a fully-functional Periscope. You child will have great fun assembling it and playing with it.


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