Emerging Birder – Flickr

Ohio Sea Grant and Stone Laboratory – Flickr

flickingerbrad – Flickr

Comparative thickness of human hair

Credit: Anne Weston, LRI, CRUK. Wellcome Imagesimages@wellcome.ac.ukimages.wellcome.ac.ukThis image shows the difference in thickness of human hair between different ethnic groups. The strand of hair on the left is that of a Caucasian blonde female. The hair on the right is from an Asian male. Hair is normally comprised of three layers, the inner medulla, the cortex and the cuticle. The cuticle is the outermost layer and is comprised of numberous overlapping cells or scales. The cortex makes up the majority of the hair thickness. Interestingly, the inner medulla is not present in blond hair.Scanning electron micrograph

wellcome images – Flickr

wellcome images – Flickr

Carl Zeiss Microscopy – Flickr

LCD Macro

This was taken with a reverse-lens setup, these are the individual RGB pixel cells of my computer monitor.

nebarnix – Flickr

Bild: nebarnix

Carl Zeiss Microscopy – Flickr