How to make a trip wire alarm in just 3 minutes

If you have ever watched movies of the spy genre, you have probably seen some sort of trip alarm designed to be triggered when someone crosses over a piece of string or thread.

Apparently, we weren’t alone and wondering how to build one for ourselves as Mr. Gear has taken it upon himself to construct a handy how-to video revolving around this idea.

In this one, we take a look at his setup to see exactly how to create a rocket that is launched when somebody steps over such a string.

Check out the demonstration below that will bring your spy movie fantasies to the forefront of reality for you to try at home.

We would recommend that you do this one with extreme caution or under the supervision of professionals if you decide you want to try yourself.