{"@context":"http://iiif.io/api/presentation/4/context.json","id":"https://archivebase.ldas.jp/na-kamura-1263/smithsonian-3d/api/iiif/4/morse-vail-telegraph-key-ed99f4/manifest","type":"Manifest","label":{"ja":["モールス・ヴェイル電鍵"],"en":["Morse-Vail Telegraph Key"]},"summary":{"ja":["この電鍵は、アルフレッド・ヴェイルがサミュエル・モールスの初期の送信機を改良して製作したもので、最初のボルティモア＝ワシントン間電信線に使われたものと考えられている。ヴェイルは、電線を通じて符号化した電気信号を送受信する実用的な方式の開発をモールスとともに進め、1844年にその実演を成功させた。"],"en":["Alfred Vail made this key, believed to be from the first Baltimore-Washington telegraph line, as an improvement on Samuel Morse's original transmitter. Vail helped Morse develop a practical system for sending and receiving coded electrical signals over a wire, which was successfully demonstrated in 1844."]},"metadata":[{"label":{"ja":["分野"],"en":["Topic"]},"value":{"ja":["製造業"],"en":["Manufacturing industries"]}},{"label":{"ja":["museum"]},"value":{"ja":["国立アメリカ歴史博物館"],"en":["National Museum of American History"]}},{"label":{"ja":["objectType"]},"value":{"ja":["電信送信機"],"en":["telegraph transmitter"]}},{"label":{"ja":["日付"],"en":["Date"]},"value":{"ja":["1844年"]}},{"label":{"ja":["作成者"],"en":["Creator"]},"value":{"ja":["サミュエル・フィンリー・ブリーズ・モールス（Morse, Samuel Finley Breese）"],"en":["Morse, Samuel Finley 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