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  • Eastern yellow jacket wasp (Vespula maculifrons) in flight.
    K07wasp9743.jpg
  • An X-ray of Yellow Perch (Perca flavescens). The Yellow Perch (Perca flavescens) is a favorite for anglers due to its firm white flesh when cooked. Easily caught in all seasons, this is a popular sport fish. Perch prefer a diet of young fish and aquatic insects and can reach a length of up to 30 centimeters and a mass of 2 kilograms.
    perch-middleblue-13x19.jpg
  • An X-Ray of a Yellow Jack (Caranx bartholomaei), a predatory species found in the Western Atlantic and Caribbean Sea.
    K15X-yellowjack18B.jpg
  • An X-Ray of a Yellow Jack (Caranx bartholomaei), a predatory species found in the Western Atlantic and Caribbean Sea.
    K15X-yellowjack18A.jpg
  • A Sunflower seen in one form of simulated “bee vision” or insect vision. Since many insects have vision that ranges from the yellow to the ultraviolet part of the spectrum, this image has been adjusted to have the areas of highest reflectivity in the green part of the spectrum. This sunflower image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-A4114Bee.jpg
  • This mineral produces a strong yellow color when exposed to long wave ultraviolet (UV) light. Wernerite is a variation of scapolite.  Collected in Grenville Québec, Canada.  Wernerite is considered one of the strongest fluorescent minerals in the long wave.  This mineral was named in the early 1800's by Abraham Gottlob Werner (1749-1817) who was a well known professor of mineralogy in German mineralogy professor.
    K12-Wernerite4005.jpg
  • A browning banana. The specimen was illuminated with shortwave ultraviolet light (UV) that cannot be detected with the camera used for this image. There was a small amout of white light added to the exposure to show the yellow of the banana. The tissues in the plant absorbed the UV light and fluoresced in the visible spectrum. This technique is called ultraviolet light induced visible light fluorescence (UVIVLF) and is often used in biology to detect unique compounds in samples. This image is part of a series
    K20-UVIVF_4448.jpg
  • A Sunflower seen in one form of simulated “bee vision” or insect vision. Since many insects have vision that ranges from the yellow to the ultraviolet part of the spectrum, this image has been adjusted to have the areas of highest reflectivity in the green part of the spectrum. This sunflower image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-E4510Bee.jpg
  • A Sunflower seen in one form of simulated “bee vision” or insect vision. Since many insects have vision that ranges from the yellow to the ultraviolet part of the spectrum, this image has been adjusted to have the areas of highest reflectivity in the green part of the spectrum. This sunflower image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-F-4520Bee.jpg
  • A Sunflower seen in one form of simulated “bee vision” or insect vision. Since many insects have vision that ranges from the yellow to the ultraviolet part of the spectrum, this image has been adjusted to have the areas of highest reflectivity in the green part of the spectrum. This sunflower image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-C4503Bee.jpg
  • A Sunflower seen in one form of simulated “bee vision” or insect vision. Since many insects have vision that ranges from the yellow to the ultraviolet part of the spectrum, this image has been adjusted to have the areas of highest reflectivity in the green part of the spectrum. This sunflower image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-B4497Bee.jpg
  • A Sunflower seen in one form of simulated “bee vision” or insect vision. Since many insects have vision that ranges from the yellow to the ultraviolet part of the spectrum, this image has been adjusted to have the areas of highest reflectivity in the green part of the spectrum. This sunflower image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-G-4523Bee.jpg
  • This mineral produces a strong yellow color when exposed to long wave ultraviolet (UV) light. Wernerite is a variation of scapolite.  Collected in Grenville Québec, Canada.  Wernerite is considered one of the strongest fluorescent minerals in the long wave.  This mineral was named in the early 1800's by Abraham Gottlob Werner (1749-1817) who was a well known professor of mineralogy in German mineralogy professor.
    K12-Wernerite4001.jpg
  • Scanning electron microscope (SEM) of Black locust (Robinia pseudoacacia) thorn..The calibration bar is 100 um and the image was collected at a magnification of 752 x.
    K08SEMlocust023.jpg
  • Scanning electron microscope (SEM) of Black locust (Robinia pseudoacacia) thorn..The calibration bar is 100 um and the image was collected at a magnification of 752 x.
    K08SEMlocust025.jpg
  • A Sunflower seen in ultraviolet (UV) radiation. The image shows the different patterns on the flower petals that have evolved to attract insects to the flower. These patterns are often called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation and visible light.
    K19Flower-B4497UV.jpg
  • A Sunflower seen in simulated insect vision. In this image the UV reflectivity from the flower has been added to a normal human vision image to create one interpretation of what an insect might see. The image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-C4503Bug.jpg
  • A Sunflower seen in visible light. This image is part of a series showing the same flower in ultraviolet (UV) radiation.
    K19Flower-C4503.jpg
  • X-ray Habanero Chili Pepper.The habanero chili is one of the more intensely piquant species of chili peppers of the Capsicum genus. Unripe habaneros are green, and they color as they mature.
    K15X-Habanero01C.jpg
  • X-ray Cockscombs Fower Cockscombs (Celosia sp.)
    K15X-CockscombsFower01A.jpg
  • A Sunflower seen in ultraviolet (UV) radiation. The image shows the different patterns on the flower petals that have evolved to attract insects to the flower. These patterns are often called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation and visible light.
    K19Flower-A4114UV.jpg
  • A Sunflower seen in simulated insect vision. In this image the UV reflectivity from the flower has been added to a normal human vision image to create one interpretation of what an insect might see. The image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-E4510Bug.jpg
  • A Sunflower seen in visible light. This image is part of a series showing the same flower in ultraviolet (UV) radiation.
    K19Flower-F-4520.jpg
  • A Sunflower seen in simulated insect vision. In this image the UV reflectivity from the flower has been added to a normal human vision image to create one interpretation of what an insect might see. The image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-F-4520Bug.jpg
  • A lemon is dropped in water, creating a splash.
    K09watersplash5511.jpg
  • A Sunflower seen in ultraviolet (UV) radiation. The image shows the different patterns on the flower petals that have evolved to attract insects to the flower. These patterns are often called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation and visible light.
    K19Flower-E4510UV.jpg
  • A Sunflower seen in ultraviolet (UV) radiation. The image shows the different patterns on the flower petals that have evolved to attract insects to the flower. These patterns are often called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation and visible light.
    K19Flower-G-4523UV.jpg
  • A Sunflower seen in simulated insect vision. In this image the UV reflectivity from the flower has been added to a normal human vision image to create one interpretation of what an insect might see. The image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-A4114Bug.jpg
  • A Sunflower seen in visible light. This image is part of a series showing the same flower in ultraviolet (UV) radiation.
    K19Flower-G-4523.jpg
  • A Sunflower seen in simulated insect vision. In this image the UV reflectivity from the flower has been added to a normal human vision image to create one interpretation of what an insect might see. The image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-G-4523Bug.jpg
  • X-ray Habanero Chili Pepper.The habanero chili is one of the more intensely piquant species of chili peppers of the Capsicum genus. Unripe habaneros are green, and they color as they mature.
    K15X-Habanero01A.jpg
  • X-ray of a Bunch of Bananas
    K12x-bananas2.jpg
  • A velomobile or bicycle car is a human-powered vehicle, enclosed for protection from weather and collisions.  Here a young man is peddling the velomobile in a recumbent position.  The velomobile is built on a recumbent bike frame with two steerable wheels in the front and one wheel in the back.  This tricycle design allows for a stable vehicle on wet roads.  The vehicle is air streamed to decrease wind resistance and shield the rider from rain.  As fuel consumption becomes more of an issue, more commuters will switch to human powered vehicles.
    K08velomobile9963.jpg
  • A velomobile or bicycle car is a human-powered vehicle, enclosed for protection from weather and collisions.  Here a man is peddling the velomobile in a recumbent position.  The velomobile is built on a recumbent bike frame with two steerable wheels in the front and one wheel in the back.  This tricycle design allows for a stable vehicle on wet roads.  The vehicle is air streamed to decrease wind resistance and shield the rider from rain.  As fuel consumption becomes more of an issue, more commuters will switch to human powered vehicles.
    K08velomobile0106.jpg
  • A browning banana. The specimen was illuminated with white light to compare it with the shortwave ultraviolet light (UV) image in this series. This image is part of a series
    K20-UVIVF_4446.jpg
  • A browning banana. The specimen was illuminated with shortwave ultraviolet light (UV) that cannot be detected with the camera used for this image. The tissues in the plant absorbed the UV light and fluoresced in the visible spectrum. This technique is called ultraviolet light induced visible light fluorescence (UVIVLF) and is often used in biology to detect unique compounds in samples. This image is part of a series
    K20-UVIVF_4440.jpg
  • X-ray Habanero Chili Pepper.The habanero chili is one of the more intensely piquant species of chili peppers of the Capsicum genus. Unripe habaneros are green, and they color as they mature.
    K15X-Habanero01F.jpg
  • X-ray Habanero Chili Pepper.The habanero chili is one of the more intensely piquant species of chili peppers of the Capsicum genus. Unripe habaneros are green, and they color as they mature.
    K15X-Habanero01E.jpg
  • X-ray Habanero Chili Pepper.The habanero chili is one of the more intensely piquant species of chili peppers of the Capsicum genus. Unripe habaneros are green, and they color as they mature.
    K15X-Habanero01B.jpg
  • X-ray Cockscombs Fower Cockscombs (Celosia sp.)
    K15X-CockscombsFower02B.jpg
  • X-ray Cockscombs Fower Cockscombs (Celosia sp.)
    K15X-CockscombsFower02A.jpg
  • X-ray Cockscombs Fower Cockscombs (Celosia sp.)
    K15X-CockscombsFower01B.jpg
  • Ripe bananas in Ultra Violet (UV) light.  This is part of a pair of image to compare bananas in normal light and UV light.  The stressed cells around the brown spots glow under the UV light.
    K11-UVbanana002.JPG
  • A Sunflower seen in visible light. This image is part of a series showing the same flower in ultraviolet (UV) radiation.
    K19Flower-E4510.jpg
  • A Sunflower seen in visible light. This image is part of a series showing the same flower in ultraviolet (UV) radiation.
    K19Flower-B4497.jpg
  • A Sunflower seen in ultraviolet (UV) radiation. The image shows the different patterns on the flower petals that have evolved to attract insects to the flower. These patterns are often called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation and visible light.
    K19Flower-F-4520UV.jpg
  • A Sunflower seen in ultraviolet (UV) radiation. The image shows the different patterns on the flower petals that have evolved to attract insects to the flower. These patterns are often called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation and visible light.
    K19Flower-C4503UV.jpg
  • A Sunflower seen in simulated insect vision. In this image the UV reflectivity from the flower has been added to a normal human vision image to create one interpretation of what an insect might see. The image shows the different patterns on the flower petals as perceived by insects that can see well into the ultraviolet region of the spectrum. These special patterns that have evolved to attract insects to the flower are called honey guides. This image is part of a series showing the same flower in ultraviolet (UV) radiation, visible light, insect vision, and simulated bee vision.
    K19Flower-B4497Bug.jpg
  • A lemon is dropped in water, creating a splash.
    K09watersplash5512.jpg
  • A Sunflower seen in visible light. This image is part of a series showing the same flower in ultraviolet (UV) radiation.
    K19Flower-A4114.jpg
  • A velomobile or bicycle car is a human-powered vehicle, enclosed for protection from weather and collisions.  Here a young man is peddling the velomobile in a recumbent position.  The velomobile is built on a recumbent bike frame with two steerable wheels in the front and one wheel in the back.  This tricycle design allows for a stable vehicle on wet roads.  The vehicle is air streamed to decrease wind resistance and shield the rider from rain.  As fuel consumption becomes more of an issue, more commuters will switch to human powered vehicles.
    K08velomobile9969.jpg
  • The leaf of a hops plant (Humulus lupulus) was dyed with florisene dye and photographed in UV light. The florisene dye shows the location of the veins in the leaf as yellow, while the normally green chlorophyll glows red under the UV light
    K19hops-leaf-1615B.jpg
  • A specimen of Diopside (blue-green in UV), Humite (yellow in UV) and Calcite (red in UV) collected from the Long Lake Zinc Mine in Frontenac County, Ontario, Canada.  Photographed under short-wave ultraviolet light.  Part of a series of the specimen in different lights.
    K12-UVDiopside8715.jpg
  • A specimen of Diopside (blue-green in UV), Humite (yellow in UV) and Calcite (red in UV) collected from the Long Lake Zinc Mine in Frontenac County, Ontario, Canada.  Photographed under short-wave ultraviolet light.  Part of a series of the specimen in different lights.
    K12-UVDiopside8709.jpg
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.  This image is part of a series.
    K10BZRXN3572.tif
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.
    K10BZRXN3563.tif
  • Two different lights combind into one image.  The left part is UV light, while the right part is white light.  A specimen of Diopside (blue-green in UV), Humite (yellow in UV) and Calcite (red in UV) collected from the Long Lake Zinc Mine in Frontenac County, Ontario, Canada.  Photographed under short-wave ultraviolet light.  Part of a series of the specimen in different lights.
    K12-UVDiopside87combo.jpg
  • .Faceted quartz crystals. Close-up of quartz or silicon dioxide (SiO2), one of the commonest minerals in the Earth's crust (12% by volume). The pure, colorless variety is also known as rock crystal and is used as a gemstone and highly prized by collectors. When it contains impurities, these impart a range of colors including white, yellow, pink, blue, green and smoky brown..
    K10quartz3623.JPG
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.  This image is part of a series.
    K10BZRXN3578.tif
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.  This image is part of a series.
    K10BZRXN3575.tif
  • Female mosquito head (family Culicidae).  The individual eye lenses detect levels of light and dark in different directions.  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 200 um and the magnification is 243 x.
    K08semmosquito-C012.jpg
  • Female mosquito head (family Culicidae).  The individual eye lenses detect levels of light and dark in different directions.  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 100 um and the magnification is 689 x.
    K08semmosquito-c010A.jpg
  • Beach sand is placed in a blender to show the property of triboluminescence.   As the silica grains of sand are broken in the blender they give off blue light which in turn causes the sea shell fregments to glow yellow.  Triboluminescence is an optical phenomenon in which light is generated when asymmetrical crystalline bonds in a material are broken when that material is scratched, crushed, or rubbed.
    K16glowsand0183.jpg
  • Beach sand is placed in a blender to show the property of triboluminescence.   As the silica grains of sand are broken in the blender they give off blue light which in turn causes the sea shell fregments to glow yellow.  Triboluminescence is an optical phenomenon in which light is generated when asymmetrical crystalline bonds in a material are broken when that material is scratched, crushed, or rubbed.
    K16glowsand0182.jpg
  • Cocoa pod (Theobroma cacao). This is the fruit of the cocoa, or cacao, tree from which cocoa beans are extracted. The leathery yellow pod contains up to 100 beans embedded in a soft pulp. These are dried, roasted and ground to produce cocoa powder, which is then used to make chocolate.
    K12-cocapod1146.jpg
  • Cocoa pod (Theobroma cacao). This is the fruit of the cocoa, or cacao, tree from which cocoa beans are extracted. The leathery yellow pod contains up to 100 beans embedded in a soft pulp. These are dried, roasted and ground to produce cocoa powder, which is then used to make chocolate.
    K12-cocapod1130.jpg
  • A specimen of Diopside (blue-green in UV), Humite (yellow in UV) and Calcite (red in UV) collected from the Long Lake Zinc Mine in Frontenac County, Ontario, Canada.  Photographed under short-wave ultraviolet light.  Part of a series of the specimen in different lights.
    K12-UVDiopside8716.jpg
  • .Faceted quartz crystals. Close-up of quartz or silicon dioxide (SiO2), one of the commonest minerals in the Earth's crust (12% by volume). The pure, colorless variety is also known as rock crystal and is used as a gemstone and highly prized by collectors. When it contains impurities, these impart a range of colors including white, yellow, pink, blue, green and smoky brown..
    K10quartz3624.JPG
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.  This image is part of a series.
    K10BZRXN3581.tif
  • Female mosquito head (family Culicidae).  The individual eye lenses detect levels of light and dark in different directions.  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 100 um and the magnification is 689 x.
    K08semmosquito-c010.jpg
  • The sunset moth or the urania moth species (Urania ripheus) is an iridescent moth that is active during the day . This migratory insect lives in tropical rainforests in Madagascar. The 8 cm wide wings are iridescent and reflect red, yellow, and green.
    urania-r_00036.jpg
  • An SEM image of a male mosquito (family Culicidae).  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 100 um and the magnification is 41 x..
    K08semmosquito-c05.jpg
  • Scanning electron microscopy (SEM) of a black fly eye (species Simulium ).  The yellow is yeast cells onthe eye, their function is unknown.  The magnification is 4,410x and the calibration bar is 1 um in length.
    K08SEM-blackflyeye001C.jpg
  • A stroboscopic image of a trebuchet launching a ball.  The trebuchet uses the potential energy of a weight falling to project a yellow ball.  A trebuchet is a type of catapult that was used as a siege engine in the Middle Ages. It is sometimes called a counterweight trebuchet or counterpoise trebuchet, to distinguish it from an earlier weapon called the traction trebuchet, which employed pulling men working the mechanism.  The counterweight trebuchet appeared in both Christian and Muslim lands around the Mediterranean in the 12th century. It could fling projectiles weighing up to 350 pounds (160 kg) at or into enemy fortifications. Its use continued into the 15th century, well after the introduction of gunpowder.
    K14-trebuchet0126.jpg
  • A specimen of Diopside (blue-green in UV), Humite (yellow in UV) and Calcite (red in UV) collected from the Long Lake Zinc Mine in Frontenac County, Ontario, Canada.  Photographed under short-wave ultraviolet light.  Part of a series of the specimen in different lights.
    K12-UVDiopside8712.jpg
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.  This image is part of a series.
    K10BZRXN3584.tif
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.
    K10BZRXN3569.tif
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.
    K10BZRXN3566.tif
  • Chemical waves in a Belousov-Zhabotinsky (BZ) reagent. This is a well-mixed solution of citric acid, potassium bromate and a cerium sulphate catalyst. If the local relative concentrations in the reagent are altered, for example by the impact of a dust particle on the surface, the equilibrium of the reaction is disturbed. The reaction then oscillates between oxidation and reduction. The oscillation propagates through the solution as a concentration front (yellow lines), caused by the dynamic coupling between the propagation rate of the reaction and the rates of diffusion of the reagents. Such chemical waves may be modeled using chaos mathematics.
    K10BZRXN3560.tif
  • Male mosquito head (family Culicidae).  The large bushy antenna is used to detect females. The individual eye lenses detect levels of light and dark in different directions.  Several mosquito species are vectors for human diseases, including malaria and yellow fever. This is a scanning electron microscope image..The calibration bar is 100 um and the magnification is 41 x.
    K08semmosquito-c01.jpg
  • The scales found on the back of a mosquito (family Culicidae).  These scales decrease fluid flow across the surface of the mosquito and allow it to fly with less energy.  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 10 um and the magnification is 360 x..
    K08semmosquito-b11.jpg
  • Female mosquito proboscis (family Culicidae).  This sharp tip is used to suck blood as a food source.  Only female mosquitoes suck blood. Several mosquito species are vectors for human diseases, including malaria and yellow fever. .
    K08semmosquito-b02B.jpg
  • A stroboscopic image of a trebuchet launching a ball.  The trebuchet uses the potential energy of a weight falling to project a yellow ball.  A trebuchet is a type of catapult that was used as a siege engine in the Middle Ages. It is sometimes called a counterweight trebuchet or counterpoise trebuchet, to distinguish it from an earlier weapon called the traction trebuchet, which employed pulling men working the mechanism.  The counterweight trebuchet appeared in both Christian and Muslim lands around the Mediterranean in the 12th century. It could fling projectiles weighing up to 350 pounds (160 kg) at or into enemy fortifications. Its use continued into the 15th century, well after the introduction of gunpowder.
    K14-trebuchet0127.jpg
  • Female mosquito eye (family Culicidae).  The individual eye lenses detect levels of light and dark in different directions.  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 10 um and the magnification is 826x.
    K08semmosquito-b07red.jpg
  • Female mosquito head (family Culicidae).  The individual eye lenses detect levels of light and dark in different directions.  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 100 um and the magnification is 156 x.
    K08semmosquito-b03.jpg
  • Female mosquito eye (family Culicidae).  The individual eye lenses detect levels of light and dark in different directions.  Several mosquito species are vectors for human diseases, including malaria and yellow fever.   This is a scanning electron microscope image.  The calibration bar is 10 um and the magnification is 407 x.
    K08semmosquito-b06.jpg
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Ted Kinsman

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