️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ During his ensuing naval service, he first served on the USS "Richmond", then the USS "Minnesota".<unk> During his ensuing naval service, he first served on the USS "Richmond", then the USS "Minnesota".<unk> While in Asia, Sprague wrote stories he filed for the Boston Herald. While his ship was in Newport, Rhode Island, in 1881, Sprague invented the inverted type of dynamo. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Sprague <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk> <unk>
1881 in Paris and the Crystal Palace Exhibition in Sydenham, England in 1882, where he was on the jury of awards for gas engines, dynamos and lamps.