Domain
Applications
Tools
Chemistry
Molecules are on the nanoscale.
Balances, pipettes, volumetric flasks.
Biochemistry
Microscale and biochemical reactions
Spectrometer, microscope
Nanoscale physicist
Properties that change
Atomic force microscope
Scanning tunneling microscope
Cell biologist
All biology at the cellular level
Microscopes, electrode tomography
Ecologist


Entomologist
Surface area/volume

Toxicologist


Aquatic biologist
scale of contamination

Neurologist
Comparing macro to micro views of tumors.
MRI and CAT scans
Astronomer
Wavelengths of light

Materials science

microscopy, lithography
Electrical engineer