Concave Collection (page 2)

Army ground radar antennae on display on Ford Island as part of a large Rim of the Pacific Exercise (RIMPAC) held in the Oahu, Hawaii

A technician climbs up a large radio telescope antenna
November 18, 2009 - A technician climbs up a 28-foot radio telescope antenna at the Sagamore Hill Solar Observatory, Massachusetts, to perform a semi-annual corrosion control inspection

The Lovell Telescope at Jodrell Bank Observatory in Cheshire, England
The Lovell Telescope is a radio telescope at Jodrell Bank Observatory in Cheshire, England

Blood flow through a relaxed artery verus an artery in spasm

Cancer cell with red blood cell flow

Insertion of balloon into atherosclerotic artery

Arteries on heart showing atherosclerotic plaque in an artery

Microscopic view of blood clotting inside the artery

Artery cross-section with blood flow and stent deployment
Microscopic view of an artery cross-section with blood flow and stent deployment

Good and bad cholesterol found in blood stream

African trypanosomiasis in the red blood cells. African trypanosomiasis, also known as sleeping sickness, is a parasitic infection caused by protozoa

Conceptual image of ebola virus in blood stream

Microscopic view of red blood cells

Red blood cells with leukocytes

Microscopic view of blood cells with virus

Interior view of heart with detail of muscle cells and atherosclerotic artery. Chest x-ray in background

Nerve ending, seen in lower right, sends pain message from injured muscle. Blood vessel and immune cells are seen in the center and upper right of image

Thrombus forming on valve within vein

Blood vessel with platelets, white blood cells and red blood cells

Normal artery compared to plaque and thrombus formation in artery

Conceptual image of ebola virus in artery

Conceptual image of hemoglobin and red blood cells. Hemoglobin is a protein responsible for transporting oxygen in the red blood cells of vertebrates

Red blood cell flow inside the artery

Microscopic view of H5N1 virus with red blood cells and white blood cells

Conceptual image of platelets with red blood cells
Conceptual image of platelets with white blood cells and red blood cells

Conceptual image of chromosomes inside the blood stream

Conceptual image of sickle cell anemia with red blood cells

Conceptual image of malaria parasites within red blood cells

Conceptual image of a red blood cell

Normal artery versus artery in spasm

Conceptual image of plasmodium

Sickle cell anemia with red blood cells and white bood cells
Conceptual image of sickle cell anemia with red blood cells and white bood cells

Artery showing atherosclerotic plaque, platelets and red blood cells
Close-up of artery showing atherosclerotic plaque, platelets and red blood cells

Arteriole with red blood cells, white blood cells and oxygen

Microscopic view of fat plaque inside the artery

Microscopic view of blood flow inside an artery with stent deployment

Insertion of stent into atherosclerotic artery

Conceptual image of red blood cells with platelets

Microscopic view of HIV virus inside the lungs

Inside view of the artery with red blood cells

Conceptual image of red blood cells with fibrin

Conceptual image of sickle cell anemia. Sickle cell anemia is a disease in which your body produces abnormally shaped red blood cells. The cells are shaped like a crescent or sickle

Nerve with myelin sheath, seen in lower right, connects with muscle. Blood vessel and immune cells are seen in the center and upper right of image

Conceptual image of Trypanosoma

Microscopic view of human anitbodies with red blood cells. Human antibodies are the Y-shaped proteins used by the immune system to defend against foreign objects like bacteria and viruses

Microscopic view of sicke cells causing anemia disease

Microscopic view of blood cells

Conceptual image of a blood vessel

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"Exploring the Enigmatic World of Concave: Unveiling Illusions and Artistic Marvels" Step into a realm where reality bends and perceptions deceive. Concave, a concept that transcends mere curvature, takes us on a captivating journey through hollow-face illusions and mesmerizing artwork. Delve into the enigma of the Hollow-face illusion, where concave surfaces play tricks on our minds. As we gaze upon these artworks, faces seem to protrude outwards when in fact they are inwardly curved. A testament to the intricate workings of human perception. Intriguing artifacts from history also bear witness to the allure of concavity. The RMS Titanic's cigar case recovered by CS Mackay-Bennett reminds us how even amidst tragedy, objects can hold stories within their concave depths. The Carl Zeiss Jena Concave Mirror Lens illuminates distant horizons with its searchlights. This technological marvel harnesses the power of concavity to focus light beams towards specific targets, guiding ships safely through treacherous waters. Travel back in time as you encounter Cornelius Frazier's Circular Desk from 1936; an embodiment of sleek design with its smooth curves and concave surface inviting creativity to flow effortlessly. Ancient civilizations too embraced this captivating form. The Pyxis container crafted by Euaion Painter in 450-440 BCE showcases delicate craftsmanship fused with a subtle yet alluring concavity that once held personal treasures close at hand. Witness Tang dynasty's Broad Pear-Shaped Jar adorned with a meticulously carved lid boasting an enticing concave shape; it stands as a testament to ancient Chinese artistry and practicality merged seamlessly together. Marvel at Mbulu Ngulu, an awe-inspiring Kota Reliquary Figure made from brass, copper & iron. Its striking presence emanates from its expertly sculpted body featuring intricate patterns accentuated by strategically placed convexities and intriguing concavities.