Pièce 20 - Letter from George Airy

Open original Document numérique

Zone d'identification

Cote

Add. MS a/200/20

Titre

Letter from George Airy

Date(s)

  • 18 Oct. 1837 (Production)

Niveau de description

Pièce

Étendue matérielle et support

4 pp.

Zone du contexte

Zone du contenu et de la structure

Portée et contenu

Royal Observatory Greenwich - Gives an account of the difficulties involved in constructing a self-registering machine to measure terrestrial magnetism: 'There is only one way in which I can conceive the possibility of such a machine, namely by makingread more

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