Ninja Blogging

Most barcodes in the US are 12-digit UPC barcodes, with ten digits at the bottom of the code and one small number to each side. Impress your friends by asking them to select a random item from the kitchen with a removable label and cut the numbers off of the UPC barcode; you can then proceed to read the numbers encoded in the lines.

Steps:

1. Note that barcodes are made up of both black and white lines. The white spaces in between the black lines are part of the code.

2. Understand that there are four different thicknesses to the lines. Henceforth, the skinniest line will be referred to as “1,” the medium-sized line as “2,” the next largest line as “3.” and the thickest is “4.”
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