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Reverse Engineering works in everyday life.. here is an example.. school!
Today I was sitting in science class doing a project on crystal systems (yawn!).
For the project we had to reconstruct the crystal system shapes (Cube, Tetrahedron, ect..) and then count how many faces, edges, and vertices.
When we were done with one, we had to prove we counted correctly, using 1 of 2 formulas provided:
FACES + VERTICES = EDGES + 2
FACES + VERTICES - EDGES = 2
so i got tired of counting and decided to try and find an "exploit" to his method.
i tried looking for patterns in the answers, nothing..
i started looking everywhere for something and then i noticed, the flaw was the formula!
I started doing some equations using the cube.
Cube:
Faces - 6
Vertices - 8
So reversing the formula into giving me the answer to edges..
6 + 8 - E = 2
-6 -6
--------------
8 - E = -4
-8 -8
--------------
- E = -12
-1 x -E = E
-1 x -12 = 12
E = 12
Proof checking:
6 + 8 = 14
14 - 12 = 2
IT WORKED!!
I got excited, finished off doing the rest of them before any one in the class (seeing as one of them had 30 edges.. and it only took me 3 seconds to count and everyone else almost 3 minutes.) and then brought up my paper (and the work to get the reverse engineered formula) to my teacher. He asked me how i finished so quickly and i showed him the formula and everything i did.
This is just a simple little example of reverse engineering, a.k.a. taking information you already know and using it to your advantage, or making it do something it isnt supposed to be doing.
For the project we had to reconstruct the crystal system shapes (Cube, Tetrahedron, ect..) and then count how many faces, edges, and vertices.
When we were done with one, we had to prove we counted correctly, using 1 of 2 formulas provided:
FACES + VERTICES = EDGES + 2
FACES + VERTICES - EDGES = 2
so i got tired of counting and decided to try and find an "exploit" to his method.
i tried looking for patterns in the answers, nothing..
i started looking everywhere for something and then i noticed, the flaw was the formula!
I started doing some equations using the cube.
Cube:
Faces - 6
Vertices - 8
So reversing the formula into giving me the answer to edges..
6 + 8 - E = 2
-6 -6
--------------
8 - E = -4
-8 -8
--------------
- E = -12
-1 x -E = E
-1 x -12 = 12
E = 12
Proof checking:
6 + 8 = 14
14 - 12 = 2
IT WORKED!!
I got excited, finished off doing the rest of them before any one in the class (seeing as one of them had 30 edges.. and it only took me 3 seconds to count and everyone else almost 3 minutes.) and then brought up my paper (and the work to get the reverse engineered formula) to my teacher. He asked me how i finished so quickly and i showed him the formula and everything i did.
This is just a simple little example of reverse engineering, a.k.a. taking information you already know and using it to your advantage, or making it do something it isnt supposed to be doing.
Posted by 
cool I suppose, but you seem to show a total lack of understanding of algebra, it may help to try and convince yourself, FACES + VERTICES - 2 = EDGES means that for a cube 6 + 8 - 2 is a good as answer as 12. But nice anyhow, how are you by chance? Hope I didn't just blast a kiddie...
nice try at the kiddie blasting tho man.. only thing u did tho was find a second way to do the same thing, just faster. thx for the tip tho 
