Picture of How to make a lie detector (sort of)
This is a machine that could be loads of things. It's basicly a machine that buzzes each time you press a secret switch but it DOES look cool! you can decorate it too to make it look MORE cool! Happy buzzing!

Step 1: You Will Need:


1x wooden square (base)
1x long thick copper wire with no insulation on (finger holder)
4x long thin copper wire with insulation
1x buzzer (12 volt)
1x 9 volt battery
2x paperclips
2x copper nails
2x short screws (length shorter than depth of base)
duck tape
1x elastic band (or thin string)

Tools and bits:

wire stripper
soldering iron
saw (if you need to cut the wood)
double sided sticky pads
about finger size tube

paradad (author) 6 years ago
thanks, guys. I don't know about you but I think the microcontroler is a good idea. how about sticking it on your door so it looks like one of those access to your door things? Ben (age 9)
Berserk876 years ago
you need to solder a microcontroller in there somewhere. dosnt have to do anything, but it makes your "lie detector" look more believable.
hg3416 years ago
wow thats real funny