Скачать или смотреть “The Cold War Heating Brick: The Survival Secret History Forgot”

In the deadliest winters of the Cold War, soldiers and scientists faced an enemy far more merciless than guns or missiles—the cold itself. Hidden in survival kits was a small, unassuming metal brick that could mean the difference between life and death. Known as the heating brick, it stored and released heat using a remarkable phase change material, keeping pilots alive, instruments safe, and Arctic missions possible when everything else failed.

In this video, Survival Sensei uncovers the untold story of this ingenious survival tool, exploring its science, its critical role in missions that couldn’t fail, and how it quietly shaped everyday life in extreme cold. From Cold War battlefields to modern hand warmers, discover the simple, brilliant technology that has kept humans alive for decades.

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