Record

PP - Proceedings Papers
- 15 - Scientific papers published in the Proceedings of the Royal Society volume 47, 1889-1890

RefNo	PP/15/10
Previous numbers	PP/47/10
Level	Item
Title	Paper, 'On electric discharge between electrodes at different temperatures in air and in high vacua' by J A [John Ambrose] Fleming
Date	1889
Description	Fleming writes: 'It has been known for some time that if a platinum plate or wire is sealed through the glass bulb of an ordinary carbon filament incandescent lamp, this metallic plate being quite out of contact with the carbon conductor, a sensitive galvanometer connected between this insulated metal plate enclosed in the vacuum and the external positive electrode of the lamp indicates a current of some milli-ampéres passing through it when the lamp is set in action, but the same instrument when connected between the negative electrode of the lamp and the insulated metal plate indicates no sensible current. This phenomenon in carbon incandescence lamps was first observed by Mr Edison, in 1884, and further examined by Mr W H Preece, in 1885. The primary object of the experiments described in this paper was the further examination of this effect, but the inquiry has extended itself beyond this range and embraced some general phenomena of electric discharge between electrodes at unequal temperatures, and in particular has revealed some curious effects in the behaviour of an electric arc taken between carbon poles towards a third insulated carbon on metal poles.' Annotations in pencil and ink throughout. Subject: Electricity Received 16 December 1889. Read 9 January 1890. Communicated by George Carey Foster. A version of this paper was published in volume 47 of the Proceedings of the Royal Society as 'On electric discharge between electrodes at different temperatures in air and in high vacua'.
Extent	11p
Format	Typescript
PhysicalDescription	Ink and graphite pencil on paper
Digital images	View item on Science in the Making
AccessStatus	Open
RelatedMaterial	DOI: 10.1098/rspl.1889.0072

Fellows associated with this archive

Code	PersonName	Dates
NA7145	Fleming; Sir; John Ambrose (1849 - 1945); electrical engineer	1849 - 1945
NA8011	Preece; Sir; William Henry (1834 - 1913)	1834 - 1913
NA6347	Foster; George Carey (1835 - 1919); physicist	1835 - 1919

Add to My Items

Botanical paintings by Jacob van Huysum and William Sartorius

Botanical paintings by Jacob van Huysum and William Sartorius

Tweets by theRCN

Campi Phlegraei

Campi Phlegraei

Referees’ Reports

Referees’ Reports

Botanical paintings by Jacob van Huysum and William Sartorius

Botanical paintings by Jacob van Huysum and William Sartorius

Photographs of British algae: cyanotype impressions

Photographs of British algae: cyanotype impressions

Browse Collections