i dont know how you guys call this thing but you now know what im talking about. well, i start looking really carefully in to this device, open it up and marvelling how this "simple" office device is really a pretty clever invention, a thing i couldnt even dream to invent or make. after that i realize that the guy who invented this must have won a shit ton of money, come on guys you can find this shit in every office around the world... after a min dreaming about all the money that guy made i saw a little thing that i didnt knew why was there.
so that part is mobile, i couldnt understand why this especific part needed to be mobile, it could go up a little bit and return to its place... but why... then i realized i could turn it around, complete a 360 degrees turn but still, why would i want to change its position... foloowing my curiosity i set it into this new position and behold!!!! that shit had a purpose i never imagined and that still dont understand
this device could do its work in 2 differents way...
p.s. i still dont know why woul anyone want to ise the "new" form