Which of these military innovations was originally developed during WWII by the U.S. Army Signal Corps as the SCR-584 radar system before being transformed into a revolutionary civilian product in 1946?

Throughout history, military necessity has driven remarkable product innovations that later transformed civilian markets. From radar to GPS, internet to duct tape, many everyday items originated in military R&D. This poll tests your knowledge about one of the most significant transitions from military technology to consumer product that revolutionized an entire industry and changed how we communicate and access information globally.

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The microwave oven, when Percy Spencer at Raytheon noticed a chocolate bar melting near radar equipment and realized the potential for rapid heating using microwave technology
Polaroid instant photography, when Edwin Land was tasked with creating quick-developing reconnaissance photos for military intelligence purposes
The transistor radio, when Bell Labs engineers needed a compact alternative to vacuum tubes for portable field communications equipment
Velcro fasteners, when engineer Georges de Mestral observed how burrs attached to military uniforms during training exercises and sought a practical application