It is an instrument with three or four small hollow metal hemispheres set so that they catch the wind and measures it. Anemo means wind
The adenoids can also be removed by electrocautery with a suction Bovie, an instrument with a hollow center to suction blood and a rim of metal to achieve coagulation
Guiro
ITS METAL
ITS METAL
metal
this is a kind of metal instrument
Bits Of Metal are useful for Tinkering and Trading.
digerepoo
A didjeridoo is a musical instrument made by the hollowing of a eukalyptus branch by termites.
A musical percussion instrument (drum); usually consists of a hollow cylinder with a membrane stretched across each end.
it depends, some netal poles on traffic lights are hollow and those with flags are solid