Which scientific product was originally developed as a by-product of NASA's Apollo space program before becoming a standard laboratory tool worldwide?

Product development in scientific research relies on unexpected breakthroughs and innovative thinking. Some of our most important scientific tools and products emerged from surprising origins or development processes. Test your knowledge about how certain scientific products came to market and revolutionized research capabilities.

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Cordless vacuum cleaners
Inductively Coupled Plasma Mass Spectrometry (ICP-MS) analyzers
Polymerase Chain Reaction (PCR) thermocyclers
Scanning electron microscopes