Humans appear “hairless,” not because we have less hair follicles, but because our hair is thinner, shorter, and more transparent than that of other mammals. The outermost layer of the hair is called the cuticle, and it is composed of dead, overlapping cells that form a hard protective coating, like shingles on a house. Caucasian hair (left) typically has ~5 layers in the cuticle whereas Asian hair (right) has up to 12, making it wider. Asian hair has a round fiber and is straight. Wavy and curly hair have oval or irregularly-shaped fibers. The shape of the hair follicle determines the shape of the fiber.
Image: Scanning electron micrograph of a hair fiber from a Caucasian blonde female (left) and an Asian male (right). The overlapping cells of the cuticle are readily apparent on both fibers.
Wool Brain in Specimen Jar
Realistic Needle felted Brain in a Jar. Handmade from wool fleece. This Brain is approx 6 cms by 4.3 cms. This brain is in a jar that has been especially chosen for these sized brains. Its an oval shaped jar that is approx 7.5 cms across by 8.5 cms.
You never know what you are going to find on Etsy….
slip a sable under the tree, for me.
been an awful good girl, santa baby,
so hurry down the chimney tonight.
santa baby, a ‘54 convertible too,
I’ll wait up for you dear,
santa baby, so hurry down the chimney tonight.
think of all the fun I’ve missed,
think of all the…
‘Smiley face’ on cancer tumor spotted by Australian researcher Manisha Sharma
I’m in a Christmas mood!
Winner of Honorable Mention in Science’s Visualization Challenge, 2011.
Visual Science’s 3-D model of the Ebola virus is 10 times more complex than their HIV model. This intricate visualization includes 11 types of viral and human proteins, 18,900 nucleotides of genomic RNA and more than 2.5 million different lipid molecules. The Ebolavirus was first described in 1976 during the Zaire ebolavirus outbreaks in Africa. It’s one of the most lethal viruses on Earth - once patients are infected, they develop a severe form of hemorrhagic fever that has a fatality rate of almost 90% in some cases. There have also been some fatalities resulting from laboratory accidents. Ebolavirus is one of a handful of viruses that need to be contained in Level 4 Biohazard facilities, necessitating positive pressure personnel suits with a segregated air supplies.
By Ivan Konstantinov, Yury Stefanov, Alex Kovalevsky, Anastasya Bakulina and Kirill Grishanin from the Visual Science Company
(со страницы microculture)