Alfred Vail's Electromagnetic Telegraph Notes

ID: SIA2011-0826

Creator: Vail, Alfred

Form/Genre: Document

Date: 1848

Citation: Smithsonian Institution Archives, Record Unit 7055, Box 5, Folder: 4

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Summary

The page on the left contains Alfred Vail's notes about magnetic forces and magnetism in relation to the electromagnetic telegraph. The page on the right is a diagram drawn by Vail of the telegraph line between Pittsburgh, Pennsylvania and Washington , D.C.

Subject

Morse, Samuel Finley Breese 1791-1872

Category

Historic Images of the Smithsonian

Notes

  • Alfred Vail was a key partner to American inventor Samuel Morse and is credited with designing the machine and alpha code used in the creation of the electromagnetic telegraph.
  • For other materials relevant to Vail's work, see Negative Numbers SIA2011-0824, SIA2011-0825, and SIA2011-0827 to SIA2011-0830. For letters between Vail, Morse, and first Smithsonian Secretary Joseph Henry, see Negative Numbers SIA2011-0814 to SIA2011-0823.

Contained within

Smithsonian Institution Archives, Record Unit 7055, Box 5, Folder: 4

Contact information

Institutional History Division, Smithsonian Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520, SIHistory@si.edu

Date

1848

Restrictions & Rights

No restrictions

Topic

  • Electric apparatus and appliances
  • Telegraph
  • Inventions
  • Science
  • Telecommunication
  • Electromagnets
  • Notebooks
  • Magnetism
  • History
  • Electromagnetic telegraph
  • Electromagnetism
  • Science--History

Place

United States

Form/Genre

  • Document
  • Paper

ID Number

SIA2011-0826

Physical description

Number of Images: 1; Color: Color; Size: 17w x 10h; Type of Image: Document; Medium: Paper

Full Record

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