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Chumbak Mani, Ancient Land Mine Detector used for Demining
Chumbak Mani, described in Brihad Vaimanika Sastra by Maharshi Bhardwaja around 4000 BCE, was ancient land mine detector, which emits electrical signals to find hidden arsenal inside ground, while flying or moving above. Bharadwaj, was father of Garga and Drona …

Baghdad Battery
Sitting in the National Museum of Iraq is a earthenware jar called Baghdad Battery, about the size of a man’s fist. Its existence could require history books throughout the world to be rewritten. According to most texts the “voltic …