زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #51 صور العلوم ...
09-13-2005, 08:18 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #52 صور العلوم ... http://www.nasa.gov/multimedia/imagegaller...eature_409.html
09-18-2005, 11:22 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #53 صور العلوم ...
09-18-2005, 01:42 PM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #54 صور العلوم ... [CENTER]This image of a peppercorn and a grain of salt taken by David McCarthy is the overall winner (and close-up category winner) in this year's Visions of Science Photographic Awards. The competition is sponsored by Novartis and The Daily Telegraph. (©David McCarthy[/CENTER])
09-29-2005, 10:50 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #55 صور العلوم ... [CENTER]A tiny shrimp fearlessly enters the mouth of a fish to clean its teeth. Fish value this service as the shrimp removes and eats harmful parasites. (©Jim Greenfield)[/CENTER]
09-29-2005, 10:53 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #56 صور العلوم ... [CENTER]A clinical skills tutor holds a pile of prosthetic arms. The arms are used to help medical students learn valuable techniques, in this case the insertion of a cannula, a tube used for draining or introducing fluids. (©Amanda Rebbechi)[/CENTER]
09-29-2005, 10:54 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #57 صور العلوم ... [CENTER]Representation of panspermia - a theory that the seeds of life are found throughout the Universe, and that life arose on Earth when such seeds landed here early in geological history. The image shows eggs shattering and releasing smaller eggs. (©John Brackenbury[/CENTER])
09-29-2005, 10:55 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #58 صور العلوم ... [CENTER]Films of supersaturated solutions can have crystallization initiated by any disturbance. This black rectangular outline has been scratched out to make a border in which these paracetamol crystals can grow. (©Spike Walker )[/CENTER]
09-29-2005, 10:56 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #59 صور العلوم ... [CENTER]The surface tension of water supports a metal paperclip. By photographing it using a grille in front of the light source, the deformation of the water caused by the clip's weight can be seen. (©Robert Anderson )[/CENTER]
09-29-2005, 10:57 AM

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زياد عضو رائد المشاركات: 1,424 الانضمام: Jun 2004	مشاركة: #60 صور العلوم ... [CENTER]Cancer cells can spread through the body in a process known as metastasis. This cancer cell is moving down a pore in a filter. The image was taken at Cancer Research UK, where the spread of cancer is studied in the hope of finding a cure. (©Anne Weston )[/CENTER]
09-29-2005, 10:59 AM

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