Microscope Museum

Collection of antique microscopes and other scientific instruments

 

      

Image

Source

Observations from the source

Gallenkamp (1930s)

Bar and gauge to show expansion on heating

Gallenkamp (1930s)

Ball and ring to show increase in diameter on heating

Gallenkamp (1930s)

Ball and ring to show increase in diameter on heating

Gallenkamp (1930s)

Ball and ring to show increase in diameter on heating