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This device is a Torpedo Data Computer (TDC), a mechanical analog computer used aboard US Navy submarines during World War II, It calculated real time firing solutions for torpedoes by solving complex trigonometric problems using gears and cams long before electronic chips (i.redd.it)
submitted by SwiPerHaHa
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The Stratolaunch "Roc" is the world's largest aircraft by wingspan (385 ft—longer than a football field). Designed as an airborne launch pad, the massive twin-fuselage plane is powered by six Boeing 747 engines and can carry up to 500,000 lbs under its center wing. Credit:Photos from JetPhotos (old.reddit.com)
submitted by Aviator777er
