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Explore the profound impact of three fundamental inventions - the nail, the magnet, and the pump - in this engaging 45-minute talk by award-winning engineer and broadcaster Roma Agrawal. Discover how these seemingly simple creations have shaped our society and politics throughout history. Delve into the stories of the often-overlooked scientists and engineers behind these innovations, and gain a new appreciation for the small yet powerful components that make up our world. Learn how these tiny inventions have led to monumental changes in human civilization and continue to influence our lives today.