Frumusetea creatiei vazuta prin "ochii" stiintei

[Jane Says]

scanning electron microscope image of pyralidae moth, side view of head

[Jane Says]

Scanning electron micrograph of a human dendritic cell





Scanning electron microscope image of a leaf from a Black Walnut tree. Image shows a cross-section of a cut leaf, itsupper epidermal layer, mesophyll layer with palisade cells and vascular bundles, and lower epidermal layer. The protrusion at center is just over 50 microns tall. (Dartmouth Electron Microscope Facility/Dartmouth College)#




The anterior spiracles (respiratory openings) of a fruit fly larvae magnified 1500x. (Albert Tousson and Tomek Szul; Department of Cell Biology The University of Alabama at Birmingham)




A polllen grain on perched on the anther of a Penta lanceolata flower. The grain is about 40 microns wide. (Dartmouth Electron Microscope Facility/Dartmouth College)




(Mai multe imagini aici: http://www.boston.com/bigpicture/200...cro_world.html )

[Jane Says]

Sperm production. Coloured scanning electron micrograph (SEM) of sperm cells (spermatozoa) in the seminiferous tubules of the testis. This is the site of spermatogenesis (sperm production). Each sperm cell consists of a head (green), which contains the genetic material that fertilises the female egg cell, and a tail (blue), which propels the sperm. The heads of the sperm are buried in Sertoli cells (yellow and orange), which nourish the developing sperm.




Title:
SEM of human egg (ovum) surrounded by sperm in fallopian tube x550
Caption: Colour enhanced scanning electron micrograph

[Jane Says]

Coloured image of a 6 day old human embryo implanting

(captured using a scanning electron microscope (SEM), a type of electron microscope that uses a beam of high-energy electrons to scan surfaces of images. The electron beam of the SEM interacts with atoms near or at the surface of the sample to be viewed, resulting in a very high-resolution, 3D-image)

[Jane Says]

(40 days)




(11 weeks)


In 1969 Lennart Nilsson began using a scanning electron microscope to depict the body’s functions. He is generally credited with taking the first images of the Human Immunodeficiency Virus, and in 2003, he took the first image of the SARS virus.