Latest / Curious Kids Every Day: A Daily Educational Podcast
How Do Bar Codes Work?
In this episode, we learn how bar codes help grocery store scanners know exactly what item you are buying. We discover how black bars and white spaces make a pattern and how the store computer matches the scanned number to the right item and price!
Curious Kids Every Day is a daily, interactive podcast that respects your child's intelligence and curiosity. I created this to be a show I would be happy to have my kids listen to.
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