Later, soldiers in the first world war used them to look out of the trenches without. We made our own periscopes using sheets of cardboard and small mirrors. Procedure use the putty to stick the back of the mirrors to the inside of the pvc elbows at a 45 angle. Why is this angle the best? Attach the elbows to the pip. How to make a periscope out of cardboard a piece of cardboard 42cm long by 42cm wide 2 strips of cardboard about 32cm long and 8cm widecut off this bit of cardboard and tape it to the edge of the box. Look through the bottom hole to see over fences or even around corners. Want to spy round corners without being seen? Make a tall, rectangular tube out of your cardboard. Cut a flap on opposite ends and sides of your box. Use the knife to cut around the top of each milk carton, removing the peaked.
To make a periscope from a 1-quart milk carton, your mirrors must be smaller than. To make a cardboard periscope, first cut the tops off 2 empty quart-sized milk cartons. Then, tape the cartons together to make one long box. To make a cardboard periscope, first cut the tops off 2 empty quart-sized milk cartons. Then, tape the cartons together to make one long box. Learn how to make a periscope out of recycled materials with the incredible artist. Cardboard periscope the instructions below is for a design of a periscope. .