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Description: | LMP 202 (spurious old departmental catalogue number in black felt tip on underside of base). D2 (spurious old departmental catalogue number in black felt tip on underside of base) MANU Unsigned. late19th early 20th century] DES after CROOKES,William,Sir. 1878 London. England DES after GEISSLER,Johann,Heinrich,Wilhelm. 1855 Bonn, Germany. This hand blown spherical envelope with two side arms for electrodes and one for the platinum target holder is a variant of the Crookes' tube. It was designed to show that the electrons had sufficient energy to make the platinum glow. The target is positioned at the focus of a spherical concave cathode. N.B. all gas discharge tubes emit X-rays this is because the electrons from the cathode strike the atoms of gas in the tube at high energy levels. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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