Products Developed for Space Travel

Which of the following is NOT a product developed for space travel?

A) Bar codes
B) Quartz watch crystals
C) Shatterproof glass
D) Polarized lenses

Bar codes are NOT a product developed for space travel. The correct answer is A) Bar codes.

Bar codes were not developed specifically for space travel. However, they have been widely used in various industries to track and identify products. Quartz watch crystals, shatterproof glass, and polarized lenses are all examples of products that have been developed for space travel.

Barcodes are a method of representing data in a visual, machine-readable form using a series of parallel lines and spaces of varying widths. They are widely used for product identification, tracking, and inventory management in various industries. The correct answer is A) Bar codes.

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