That category
It sees the smallest things, but not in 3D.
Transmission electron microscopy (TEM).
Like putting bleach on cell cultures.
Photobleaching.
The objective is right in front of your eyes.
Ocular lens.
The thinest and coldest slices.
Cryostat.
Cut in the middle.
Saggital cut.
I will fix it in a bath.
Immersion.
They allow animals to hear in stereo.
Earbars.
They can pass from one cell to another.
Transsynaptic tracers.
It's the primary way to catch a protein.
Primary antibody.
Its results first show a hyperpolarization.
Extracellular recording.
It's it that get into the cells to record electrical activity, not the actual electrode.
Micropipette.
Conducting studies with them takes years.
Produce clear images of structures within relatively thick specimens by selectively collecting light from thin ( 1 μm) regions of the specimen at a time.
Confocal microscopy.
Whatever it recieves, it sends it back larger.
Fluorophore
If this sinusoid curb becomes too small but also too big, you won't be able to see it.
Light.