Presenting the Clustarack!
Cool huh? Anyway, it takes the whole team a lot of hard work. Just to get the video you just saw, they had to tape 90+ tries! It's like going through your final exams for 90+ times! Imagine the horror! Furthermore, such contraptions are insanely hardly to predict. A truck that whooshed past may trigger some unnecessary parts to trigger. Here's another video that documents the process. You gotta admire these people at Clustarack.
What would happen if my friends and I decided to try...hm...
Me: Friend_A, is the printer cartridge ready?Would you like to try?
Friend_A: Yeah. But you must aim properly and throw it such that it hits that stack of 2B pencils.
Me: Friend_B you heard that? Our experiment lies in your hands.
Friend_B: Ya lah...I know.
Me: Okay I have the camera ready. At the count of three yeah?
Yes...yes...everything's going on fine. Cartridge hits stack of pencils and the stack of pencils fall onto the floor! Success!
Me: You think we should put this on YouTube?
Friend_A: Yeah! I think we should.
Friend_B: If we did that, it will be pretty retarded.
Me: Somehow...I agree with Friend_B.