Cathode ray tube with coral

Physics

Accession Number: 2009.ph.245

Instrument Name: Cathode ray tube with coral

Description:

A large pear shaped glass bulb is attached vertically to a turned wooden base. There is a tall glass arm or stand inside of the bulb which holds a pink mineral, likely coral. Near the bottom of the bulb, a perpendicular glass tube containing an electrode projects outward. At the top of the inside of the main glass bulb is another electrode with a metal disk attached via a short metal rod.

Alternative Name: Crookes Tube with coral

Primary Materials: Wood, Metal, Glass

Markings: Old inventory number = phy26.

Dimensions (cm): Height = 51 cm, Diameter = 12.5 cm

Function:

Coral fluoresces under bombardment of cathode rays. Possibly used for spectroscopy.

Condition:

Associated Instruments:

Manufacturer:

Date of Manufacture:

Provenance:

Donated to UTSIC: No

Historical Notes: