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  #1  
Vechi 11.02.2010, 10:50:38
Jane Says Jane Says is offline
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Implicit Frumusetea creatiei vazuta prin "ochii" stiintei

Citat:
The European Southern Observatory’s new VISTA telescope’s enormous field of view allows it to image the entire nebula at once. It’s been designed to capture near-infrared light. The longer wavelengths of light in that part of the spectrum allow rays to pass through dusty space without being scattering.

The Orion Nebula is located about 1,350 light-years from Earth. The cloud of gas and dust is a nursery for young stars. The red blobs in the features near the center of the image are young, growing stars that are hidden by dust in visible light.

VISTA was just placed into service late last year, so we can expect many more beautiful near-infrared images as it conducts its survey of the sky.


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Vechi 11.02.2010, 11:00:09
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scanning electron microscope image of pyralidae moth, side view of head

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  #3  
Vechi 11.02.2010, 11:10:38
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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 )
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Vechi 11.02.2010, 11:31:18
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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
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  #5  
Vechi 11.02.2010, 11:35:41
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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)
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Vechi 11.02.2010, 11:39:55
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(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.
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  #7  
Vechi 11.02.2010, 13:26:47
Danut7 Danut7 is offline
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Citat:
În prealabil postat de Jane Says Vezi mesajul


Unde sunt facute pozele astea?

Nu prea exista stiinta.Stiinta este un almagam de teorii care se bat cap in cap.Stiinta este in mare parte un rahat comestibil pentru prosti, care precum religia la randul ei se imparte in tabere, in care unii se bat cu altii si se contrazic cu altii.Stiinta contine prea putine adevaruri si enorm de multe teorii si supozitii prezentate ca fapte.
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  #8  
Vechi 11.02.2010, 16:42:40
Mariusica
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Fotografiile sunt frumoase.
Dar majoritatea sunt doar interpretari computerizate ale unor date captate cu ajutorul telescoapelor si/sau radiotelescoapelor.
Vreau sa spun ca norii aceia exista. Dar nimeni nu stie ce culori au.
Culorile de redare sunt stabilite cu ajutorul calculatorului pe baza variatiilor de temperatura si a radiatiilor.
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  #9  
Vechi 11.02.2010, 16:46:50
Jane Says Jane Says is offline
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Da, de-aia am pus "ochii" in ghilimele :)
Dar chiar si fara culori, detaliile sunt incredibile. Si pe mine ma frustreaza intr-o oarecare masura ca nu vedem lucrurile "asa cum sunt", dar ma consolez cu gandul "well, nu le vedem _acum_ si _aici_ :)
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  #10  
Vechi 11.02.2010, 16:51:23
Mariusica
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Intradevar, pe masura ce avanseaza, stiinta ne dezvaluie imagini incredibile atat ale macrocosmosului cat si ale microcosmosului.
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