Which famous retail technology invention was originally inspired by a pattern observed on a beach when its inventor noticed how sunlight reflected through the trees?

The world of retail has been transformed by numerous inventions and discoveries throughout history. Some innovations that seem commonplace today were once revolutionary breakthroughs that forever changed how consumers shop and how businesses operate. This trivia question explores a pivotal retail technology invention that many of us interact with daily but might not know the fascinating story behind its creation. Test your knowledge about the intersection of retail history and technological innovation!

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The UPC barcode, invented by Norman Joseph Woodland who drew lines in sand resembling Morse code
The automatic door sensor, invented by Dee Horton who studied how shadows moved across beach sand
The electronic cash register, invented by James Ritty who visualized numbers while watching waves
The security tag system, invented by Arthur Minasy who was inspired by seashell patterns