Tuesday, October 28, 2008

How does Vending Machines work?

Have you ever wondered how vending machines work? Ever wondered how does the machine recognizes the currency? How does it determine which coin or bill did you insert? Here's a brief explanation:

Bills:
  • Bills are printed with magnetic ink, and different denominations generate distinctive magnetic fields.
  • Ultraviolet scanning technology can determine the different fluorescent properties of bills.
  • Digital cameras can reference the optical patterns in bills with a database of authentic patterns.
Coins:
  • The machine checks its diameter
  • Weight
  • Thickness
  • Composition
  • Some say it has two magnets to slow down the speed because of its magnetic content. Only Iron is magnetic, I don't think coins are made out of Iron.

Saturday, October 25, 2008

Drivers Manual

Have you ever had the feeling that drives read the drives manual all wrong?

Have you ever came across a slow driver that drives on the left side of the road? Oh yeah, and drivers that like to go faster............they drive on the right side of the road.

Am I the one that read the drivers manual the wrong way?

What does yellow light mean? "Hurry up, you can make it" I thought it was, slow down it's about to change or pass with precaution. Last night I saw like 6 cars that ran through the red light! Hahahaha, and there was a police man.

When a police man turns his back on the way you are driving, what does it mean? Ok, if you have read the manual, you should know that that means STOP. Suprisingly nobody know this and they keep going.

When the red light is on and its safe to turn right o left you can pass (that's what some people say). This is the case when there's no police dude. The saddest thing is that the police guy doesn't do crap about it.

When you signal that you want to switch lanes, do you pass right away or do you wait for someone to let you pass? Most of the drivers turn on the signal and they pass right away and when you hunk the horn they give you the finger or in the case of Guatemala you can get a crazy dude pointing a gun at your head, niiiiiice!

Blocking intersections. Rush Hours. People are so damn desperate to get home or wherever they need to be, that they forget that there is a manual for driving. Think about it, if there red light is on and you are coming across an intersection, do you stop before the intersection or do block it? Like I said, people are so damn desperate that they block the intersection, for what? they obstruct they way of other people that want to go home aswell. If you come across an intersection, STOP BEFORE IT!!!! or if there is space pass, DO NOT BLOCK IT!!! We all want to go home early.

If you fit in one of the described cases above..........pleeeeeease get one of this little books, read it carefully, then drive!