Endoscope
An endoscope is characterized by its often long, thin (sometimes flexible) lighted tube containing fiber-optical instrumentation attached to a viewing device through which one may closely observe, via the naked eye or an attached camera, the ... [... more]
Healthline |
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How to Dye a Carnation
Flower petals have holes called stomas, which are too tiny to observe with the naked eye. When the stem of a flower is put in water, the water travels up through the stem and out these holes. If you set a white carnation in colored water, the ... [... more]
eHow |
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The Naked Eye
The Naked Eye [... more]
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Naked Eyes
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Xerula megalospora
To the naked eye, Xerula megalospora is a dead ringer for several other species of Xerula, including Xerula incognita and pale, small forms of Xerula furfuracea. This means you will probably need a microscope, or the ability to conduct mating ... [... more]
Mushroom Expert |
Parasites and Foodborne Illness
Fact sheet about parasites that may be present in food or in water that can cause disease. Parasites may be present in food or in water and can cause disease. Ranging in size from tiny, single-celled organisms to worms visible to the naked eye, ... [... more]
Food Safety & Inspection Service |
Hematuria (Blood in the Urine)
Hematuria is the presence of red blood cells (RBCs) in the urine. In microscopic hematuria, the urine appears normal to the naked eye, but examination with a microscope shows a high number of RBCs. Gross hematuria can be seen with the naked ... [... more]
National Kidney Clearinghouse |
Gall mites
This family of microscopic mites includes a large number of tree and shrub pests. Homeowners rarely identify the causal organism because these mites are too small to see with the naked eye (less than 0.5 mm). Diagnoses are usually based on the ... [... more]
Old House Web |
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Hematuria (Blood in the Urine)
Hematuria is the presence of red blood cells (RBCs) in the urine. In microscopic hematuria, the urine appears normal to the naked eye, but examination with a microscope shows a high number of RBCs. Gross hematuria can be seen with the naked ... [... more]
National Kidney Clearinghouse |
