First you make an $2 electromagnetic wave sensor. Now you will see light 4 get's no power unto the wave is close. You now wire the bomb / c4 to light 4 get's power bang.
Not in use and i would make an good terrorist lol
[ame="https://www.youtube.com/watch?v=-_AUDJZfduc"]Electromagnetic Wave Detection Sensor.flv - YouTube[/ame]
Not in use and i would make an good terrorist lol
[ame="https://www.youtube.com/watch?v=-_AUDJZfduc"]Electromagnetic Wave Detection Sensor.flv - YouTube[/ame]