Tube, vacuum discharge

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Ingenium, 1999.0082.003
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OBJECT TYPE: CROOKES
DATE: Unknown
ARTIFACT NUMBER: 1999.0082.003

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 3
Total Parts: 7
AKA: N/A
Patents: N/A
General Description: GLASS TUBES/ METAL PARTS

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 25.0 cm
Width: 8.5 cm
Height: 2.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Physics
Category: Demonstration & teaching equipment
Sub-Category: N/A

Manufacturer

AKA: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Unknown
Period: Unknown
Canada: ORIGINALLY THE PROPERTY OF CANADIAN GEOPHYSICIST DR. DAVID ARNOLD KEYS (1890-1977). ACCORDING TO HIS SON, SOME OF THIS EQUIPMENT WAS USED BY DR. KEYS IN DEMONSTRATIONS TO SCHOOL CHILDREN INTENDED TO STIMULATE INTEREST IN SCIENCE, OTHER PIECES DATE FROM HIS TIME AT GERMAN PHYSICIST WILHELM ROENTGEN'S LAB IN MUNICH, MCGILL UNIVERSITY & AECL. DR. KEYS WORKED WITH ROENTGEN IN MUNICH IN 1911 BEFORE EARNING A PHD AT CAMBRIDGE; HE WAS PROFESSOR OF PHYSICS AT MCGILL 1921-1947; HE WAS VP FOR ATOMIC ENERGY PROJECT AT NRC'S CHALK RIVER LABS 1947-1955; AND WAS AN AECL CONSULTANT UNTIL THE 1970'S.
Function: TUBE USED TO DEMONSTRATE FLOW OF ELECTRICITY FROM ANODE TO CATHODE IN EVACUATED TUBE.
Technical: CROOKES TUBE IS EARLY FORM OF CATHODE RAY TUBE, RELATED TO GEISSLER TUBES (990083) & EARLY DEVELOPMENT ON WAY TO VACUUM TUBES & CATHODE RAY TUBES. THEY OPERATED BY USING INDUCTANCE COIL AT HIGH VOLTAGE (TYPICALLY 20-30 KV) & DEPENDANT ON VACUUM OR GAS IN TUBE & DISTANCE BETWEEN ANODE & CATHODE. SIR WILLIAM CROOKES (1832-1919) WAS ENGLISH CHEMIST & PHYSICIST WHO DISCOVERED THALLIUM & URANIUM X1, INVENTED RADIOMETER & CATHODE-RAY TUBE;
Area Notes: Unknown

Details

Markings: NONE
Missing: From CA of 12/04/2001 by Matthew Bruce: No - appears complete. NB: Yellow cardboard tag accompanying artifact not numbered or mentioned in collections database
Finish: COLOURLESS TRANSPARENT GLASS/ METALLIC PARTS
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

Unknown Manufacturer, Tube, vacuum discharge, Unknown Date, Artifact no. 1999.0082, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1999.0082.003/

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