Cathode ray tube with one mineral

Physics

Accession Number: 2009.ph.244

Instrument Name: Cathode ray tube with one mineral

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 glass bulb which holds a large pink mineral with a blue underside. Nearer the bottom of the bulb is a perpendicular glass tube with an electrode inside it. At the top of the inside of the glass bulb is another electrode with a metal disk attached via a short metal rod.

Alternative Name: Crookes Tube with one mineral

Primary Materials: Wood, Metal, Glass

Markings: Old inventory number = phy79.

Dimensions (cm): Height = 40.5 cm, Diameter = 15.5 cm

Function:

Minerals fluoresce under bombardment of cathode rays. Possibly used for spectroscopy.

Condition:

Associated Instruments:

Manufacturer:

Date of Manufacture:

Provenance:

Donated to UTSIC: No

Historical Notes: