Period

33 results for: communicate

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A train dispatcher using a Morse key to send a message down the line on the railway telegraph system
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A train dispatcher using a Morse key to send a mes...

The use of speaking tubes on the bridge of a naval vessel for communicating with other decks
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The use of speaking tubes on the bridge of a naval...

The pneumatic dispatch which the General Post Office used to transport parcels under London
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The pneumatic dispatch which the General Post Offi...

Photograph of Guglielmo Marconi's wireless telegraph station in Cornwall, which sent and received signals between England and America
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Photograph of Guglielmo Marconi's wireless telegra...

Photograph taken of the United Nations' satellite enabling them to connect with operations around the world
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Photograph taken of the United Nations' satellite ...

Photograph of a technician holding a laser 'demodulator' used to convert laser light beams into television signals and radio sounds
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Photograph of a technician holding a laser 'demodu...

Town and country gentlemen chatting in a hedge-lined country lane
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Town and country gentlemen chatting in a hedge-lin...

Marconi'S wireless telegraph being used to report international yacht races
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Marconi'S wireless telegraph being used to report ...

Photograph of a technician holding a laser 'demodulator' used to convert laser light beams into television signals and radio sounds
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Photograph of a technician holding a laser 'demodu...

A mail train on which letters were sorted while it travelled through the night between cities
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A mail train on which letters were sorted while it...

Portrait of Edward Whitehouse
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Portrait of Edward Whitehouse

Photograph of Guglielmo Marconi's cabin aboard the SS Minneapolis filled with his equipment
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Photograph of Guglielmo Marconi's cabin aboard the...

Illustration of the 'Cooke and Wheatstone Telegraph' an early electrical telegraph system created by William Fothergill Cooke
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Illustration of the 'Cooke and Wheatstone Telegrap...

The construction of balloons in the Gare d'Orleans to carry information out of Paris during the Prussian siege
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The construction of balloons in the Gare d'Orleans...

A mail train on the Great Northern Line
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A mail train on the Great Northern Line

Photograph of the mobile radio station used by Guglielmo Marconi
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Photograph of the mobile radio station used by Gug...

The construction of balloons in the Gare d'Orleans to carry information out of Paris during the Prussian siege
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The construction of balloons in the Gare d'Orleans...

Guglielmo Marconi's wireless telegraph station in Dresden, which received signals from Oberschöneweide and transmitted them to Karskrona in Sweden and Poldhu in Cornwall
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Guglielmo Marconi's wireless telegraph station in ...

Illustration celebrating the opening of the wireless telegraph between Paris and Casablanca, showing the men whose work made it possible: Édouard Branly and Guglielmo Marconi
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Illustration celebrating the opening of the wirele...

Portrait of Johann Philipp Reis
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Portrait of Johann Philipp Reis

A wireless telegraph operator on a ship
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A wireless telegraph operator on a ship

Uhlans' tracking the course of a balloon during the Franco-Prussian War
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Uhlans' tracking the course of a balloon during th...

Illustration explaining the operation of wireless telegraphy at sea
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Illustration explaining the operation of wireless ...

Helen Keller
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Helen Keller

Helen Keller
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Helen Keller

Photograph of an American Marine and Japanese Child Soldiers
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Photograph of an American Marine and Japanese Chil...

Helen Keller
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Helen Keller

Speaking Trumpet
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Speaking Trumpet

Helen Keller
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Helen Keller

Natural Philosophy
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Natural Philosophy

death of Man Friday
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death of Man Friday

Propaganda illustration by Carlos Saenz De Tejada
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Propaganda illustration by Carlos Saenz De Tejada

Saul and the Witch of Endor
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Saul and the Witch of Endor