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Vector generated image of Lizard,Lizards are a very large and widespread group of squamate reptiles, with nearly 5,000 species, ranging across all continents except Antarctica as well as most oceanic island chains. The group, traditionally recognized as the suborder Lacertilia, is defined as all...
السمات:
Lizard Animals animal wildlife wild animal Blank white reptile |
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Painting of Gram Positive Bacterial Cell wall:Gram-positive bacteria are those that are stained dark blue or violet by Gram staining .Gram-positive organisms are able to retain the crystal violet stain because of the high amount of peptidoglycan in the cell wall. Gram-positive cell walls...
السمات:
gram+ve bacteria gram positive bacteria gramstain bacteria peptidoglycan layer |
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Painting of Gram Negative Bacterial Cell Wall:Gram-negative bacteria are those bacteria that do not retain crystal violet dye in the Gram staining protocol.In a Gram stain test, a counterstain (commonly safranin) is added after the crystal violet, coloring all Gram-negative bacteria with a red or...
السمات:
gram-ve bacteria gram negative bacteria gramstain bacteria peptidoglycan layer |
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3D render image of Hoffmann Voltmeter with Elect Glass:Hofmann voltameter is an apparatus for electrolyzing water, invented by August Wilhelm von Hofmann (1818–1892).[1] It consists of three joined upright cylinders, usually glass. The inner cylinder is open at the top to allow addition of...
السمات:
hoffmann voltmeter electrolyzing water instrument electrochemical coulometer |
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Painting of Star Shaped Bacteria:In South Africa, they observed a filamentous bacterium that was star-shaped when examined in cross section. Star-shaped bacteria have been seen before (e.g., the genus Stella) and, of course, long rod shaped bacteria are common. What had never been observed was a...
السمات:
Star shaped bacteria marine bacteria microorganisms microbiology |
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Vector generated Image of Pointer Electroscope:This instrument is used in static experiment for checking the variety of charges, measuring the quantity of charges, checking which is positive or negative charge in the objective, and checking the insulation of the objective. It is also used in the...
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Pointer electroscope electroscope |
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Vector generated Image of Thermonic Tube Triode: The Triode tube includes a small heater than must be energised before the tube can operate.It heats the cathode so that electrons can escape the surface and be driven from the cathode to the anode. When running, the heater can be seen glowing red...
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thermonic tube triode triode tube |
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Vector generated Image of PhotoVoltaic Cell: The solar cell is exposed to sunlight. The photons in the sunlight create an electron flow which in turn creates the electricity needed to light the bulb.PV solar energy is the most commonly used method in generating energy using solar panels. PV...
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Photovoltaic cell solar cell |
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Vector generated Image of PH Indicator Paper:pH is a measure of the acidity or basicity of a solution. It is defined as the cologarithm of the activity of dissolved hydrogen ions (H+). Hydrogen ion activity coefficients cannot be measured experimentally, so they are based on theoretical...
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pH indicator pH Indicator Paper |
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Vector generated Image of Wilson's Cloud Chamber:The cloud chamber, also known as the Wilson chamber, is used for detecting particles of ionizing radiation. In its most basic form, a cloud chamber is a sealed environment containing a supercooled, supersaturated water or alcohol vapour. When...
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cloud chamber wilson's cloud chamber ionizing radiation detecting instrument |
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Vector generated Image of Cross Section of Capacitor:Although electrical current can only flow through an intact circuit, if a circuit is broken or opened up a small electrical field will exist between the two ends. By altering the opened circuit to expand the area of near-contact between the...
السمات:
structure of Capacitor cross section of capacitor discrete capacitor |
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Painting of Gram positive bacteria:Gram-positive bacteria are those that are stained dark blue or violet by Gram staining. This is in contrast to Gram-negative bacteria, which cannot retain the crystal violet stain, instead taking up the counterstain (safranin or fuchsin) and appearing red or...
السمات:
gram positive bacteria bacteria |
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