A set square !
Rheostat is the name of an instrument used to vary electrical resistance.
Russian stringed musical instrument, with a triangular body and a long fretted neck fretted instrument. Usually there are three strings, which are generally plucked with a pick. The balalaika is made in various sizes, and several may be combined to make a band or orchestra.
syringe
Timepieces.
polytechnic drawing instrument
Yes they used for a number of reasons for examplereligious eventsfestivalsmarriagefuneralsand banquet gatheringsThey used pipes, lyre, double reed instrument, and a old model of a harp.
Telescope.
Bongos.
a compass i think
Electronic microscope
It is Thermoscope
The instrument used to measure the volumes of liquids are many as follows ..they are : beaker ,burette,pipette,etc.