Friendly Friday: Between the Lines

This is my contribution to the Friendly Friday Photo Challenge: Between the Lines.

Between the Lines of tree trunks in the autumn.

Autumn tree trunks.

Between the Lines of my fingerprint in Sodium Thiosulfate crystals.

A fingerprint in sodium thiosulfate.

Between the Lines of bark on a tree trunk.

Monochrome tree bark.

Between the Lines of a Thirteen-lined Ground Squirrel.

Ground Squirrel in the summer.

Between the Lines of quartz in a boulder.

Monochrome boulder with lines of quartz.

Between the Lines of ice on Lake Huron at dusk in the spring.

Blue ice, orange water.

Unnatural Patterns

The new Cosmic Photo Challenge is Unnatural Patterns.

I can’t decide if these photos are natural or unnatural but I’m going to say they’re unnatural for the challenge.

The photos are of sodium thiosulfate crystals photographed through a microscope using polarized light.  I made a solution of sodium thiosulfate, put drops on microscope slides and used various methods to get the crystals to form. The first photo could be part of one of my fingerprints.

A fingerprint in sodium thiosulfate.

polarized light microscopy

polarized light microscopy

Lines of a fingerprint.

The Daily Post Weekly Photo Challenge is Lines.

The photo shows two overlapping fingerprints in sodium thiosulfate which has crystallized. The crystals were photographed through a microscope using polarized light.

Sodium thiosulfate is used as a photographic fixer in the darkroom as silver halide dissolves in it. Commonly known as Hypo in the days of the black and white darkroom.

A fingerprint in sodium thiosulfate.