Stereoisomers that are not mirror images of one another and are non-superimposable on one another are called: diastereomers enantiomers stereogenic meso compounds symmetrical

There is a class of organic compounds which are categorized on the  basis of  symmetry. Symmetry plays an important role on deciding the physical and chemical properties of the organic compounds. The Diastereomers are put into that kind of stereomers which are not the mirror image to each other and the images can not super imposed on each other.

Stereomers which will have two or more than two stereocenter can form diastereomers,

a graduated cylinder.

explanation:

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.