Hasan al-Rammah (Arabic: حسن الرماح, died 1295) was a Syrian[1][2][3] Arab[4] chemist and engineer during the Mamluk Sultanate who studied gunpowders and explosives, and sketched prototype instruments of warfare, including the first torpedo.
[5] Al-Rammah called his early torpedo "an egg which moves itself and burns."
It was made of two sheet-pans of metal fastened together and filled with naphtha, metal filings, and potassium nitrate.
It was intended to move across the surface of the water, propelled by a large rocket and kept on course by a small rudder.
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