DIY Periscope with Mirrors

Have you ever wondered how submarines can see above the water while staying submerged? Or how you can peek around a corner without being seen? The secret lies in a clever invention called a periscope! A periscope lets you see things that are out of your direct line of sight using mirrors. In this fun DIY project, you’ll learn how to build your very own periscope using simple materials. Not only will you get to create something cool, but you’ll also discover some fascinating science behind how light and reflection work.

To get started, gather the materials you’ll need. You will need two small mirrors, a cardboard tube or a cereal box, scissors, tape or glue, and a ruler. If you’re using a cereal box, cut it to the desired height, keeping in mind that a taller periscope will give you a better view. The mirrors can be small, like those found in craft stores, or you can use old compact mirrors that you no longer need.

Once you have everything ready, it’s time to start building! First, take your cardboard tube or cereal box and cut two holes on opposite sides. The holes should be just large enough for the mirrors to fit into. The first hole should be near the top of the tube, and the second should be near the bottom. This setup will allow you to see through the top while the bottom mirrors reflect the image.

Next, take one of the mirrors and tilt it at a 45-degree angle into the top hole. You can do this by taping or gluing the mirror securely so it doesn’t move around. Now, take the second mirror and place it in the bottom hole, also at a 45-degree angle but facing the opposite direction. This mirror will reflect the image from the outside, sending it to the first mirror, which will then direct it up to your eyes. Make sure both mirrors are positioned correctly for optimal viewing.

Now, let’s take a moment to understand how this works! When light travels, it travels in straight lines. When it hits a mirror, it reflects off at the same angle at which it hit the surface, a principle known as the law of reflection. By positioning the mirrors at 45-degree angles, you create a path for the light to travel from the outside world, through the mirrors, and up to your eyes. This clever arrangement allows you to see things that are not directly in front of you!

Once your periscope is all set up, it’s time to test it out. Aim your periscope at something interesting—maybe your pet, a sibling, or even a scene outside your window. You might be amazed at how well it works! Try adjusting the angles of the mirrors or the height of your periscope to see how it affects what you can see.

Here are some ideas to enhance your periscope experience:

• Decorate your periscope with colorful markers or stickers to make it uniquely yours.
• Experiment with different sizes and shapes of mirrors to see how they change your view.
• Try using the periscope in different locations, like inside your house or outside in the yard.

Building a DIY periscope is not only a fun project but also a great way to learn about light, angles, and reflection. It encourages creativity and problem-solving while giving you a unique tool to explore your surroundings. So grab your materials, gather your friends or family, and get ready to see the world from a whole new perspective! Happy building!