Title
Hopkins' fork
Identifier
ABDNP:200218a
Description
Finely made divided windpipe - square section at base. Hopkins' fork is used with Chladni's plate to test whether pairs of vibrating zones are in-phase or out-of-phase.
Date
1860-1880
Format
internal side 32 mm; 1 1/4' clearance; top 32 mm x 21 mm (internal)
wood
Coverage
unknown
Creator
unknown