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United States President Lyndon B. Johnson owned an Amphibious car, the Amphicar, and used it to scare guests by driving them into his lake screaming about brake failure.

Written by Icelandic composer Jón Leifs in 1964, the piece called Hekla, Op 52, requires four sets of rocks hit with hammers, steel plates, anvils, sirens, cannons and metal chains to play.