‘invention’ historical pictures

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James Watt: The Man Who Harnessed Steam
James Watt: The Man Who Harnessed Steam
John Adolph Dahlgren
John Adolph Dahlgren
The Telephone
The Telephone
Pioneers in the world of power
Pioneers in the world of power
Smokeless powder, 1890
Smokeless powder, 1890
Telephoning at ease
Telephoning at ease
Hans Lippershey
Hans Lippershey
James Watt at work on the steam engine, 1763
James Watt at work on the steam engine, 1763