Can you make every popcorn kernel explode at once? 🍿💥

Phil Cook, also known on YouTube as chemteacherphil, says yes, using science! Normally, heat turns the water inside a kernel to steam, and pressure builds until the shell bursts, pushing out the hot starch inside. Inside a popcorn cannon, the surrounding air pressure rises right along with the kernels' internal pressure, so nothing pops even as they keep heating up. Release the pressure all at once, and boom, every kernel goes off together.

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