What Has NASA Actually Invented?

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What have we really gotten out of all that NASA money? You might be surprised. Except for one, which is a (crucial) improvement, each of these was developed specifically for the space program. Some are as uncommon as you might expect. This is rocket science, after all. The surprise is how many are so ordinary and everyday, things you really might not want to be without.
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Portable Cordless Vacuum

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Aircraft Anti-Icing System

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Water Filters

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Freeze Drying

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Smoke Detectors

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Workout Machines

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Artificial Limbs

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Ribbed Swimsuits

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Solar Energy

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Insulation

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Land Mine Removal

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Memory Foam

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Cochlear Implants

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Invisible Braces

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Insulin Pumps

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CatScans

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Improved Software

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Infrared Ear Thermometers

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Scratch Resistant Lenses

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