Which groundbreaking product design innovation did James Dyson develop after observing over 5,000 failed prototypes before achieving commercial success in 1993?

Throughout history, certain product designs have fundamentally changed how we interact with the world. Behind many iconic inventions are fascinating stories of innovation, unexpected discoveries, and revolutionary thinking. This trivia question explores one such transformative design that altered an entire industry and our daily lives. Test your knowledge about the history of product design that shaped modern convenience!

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• The cyclonic bagless vacuum cleaner
• The cordless electric drill with interchangeable batteries
• The bladeless cooling fan using air multiplier technology
• The digital thermostat with programmable temperature control

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