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{ 13 images found }

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  • A feather is dropped.  The motion is recorded with a strobe light that flashes 30 times a second (30 Hz).  The falling feather quickly is slows by air friction and reaches its terminal velocity.
    k13-best-feather-drop.jpg
  • An apple and a feather are released at the same time.  The feather that is falling in a vacuum chamber falls at the same rate as the apple in the air.  The feather and the apple have metal pins in them that are attracted to the strong magnets in the release mechanism that can be seen at the top of the image.  The flash is triggered at 1/20th of a second interval.  The apple and feather do accelerate at the same rate..The vacuum pressure was 30 microns.
    K12-gravity-apple004.JPG
  • An apple and a feather are released at the same time.  The feather that is falling in a vacuum chamber falls at the same rate as the apple in the air.  The feather and the apple have metal pins in them that are attracted to the strong magnets in the release mechanism that can be seen at the top of the image.  The flash is triggered at 1/20th of a second interval.  The apple and feather do accelerate at the same rate..The vacuum pressure was 30 microns.
    K12-gravity-apple001.JPG
  • A feather is dropped.  The motion is recorded with a strobe light that flashes 30 times a second (30 Hz).  The falling feather quickly is slows by air friction and reaches its terminal velocity.
    K13-best-feather04.jpg
  • SEM of Eastern bluebird (Sialia sialis) feathers.  This image is 3 mm wide..These feathers have micro-structures that reflect blue light.  These microscopic features allow the bird to display bright blue iridescent colors.
    K08SEMbbfeath06-5.jpg
  • SEM of Eastern bluebird (Sialia sialis) feathers.  This image is 2 mm wide..These feathers have micro-structures that reflect blue light.  These microscopic features allow the bird to display bright blue iridescent colors.
    K08SEMBluebirdfeathres2-3B.jpg
  • SEM of Eastern bluebird (Sialia sialis) feathers.  This image is 500 um wide..These feathers have micro-structures that reflect blue light.  These microscopic features allow the bird to display bright blue iridescent colors.
    K08SEMbbfeath10blu2.jpg
  • SEM of Eastern bluebird (Sialia sialis) feathers.  This image is 3 mm wide..These feathers have micro-structures that reflect blue light.  These microscopic features allow the bird to display bright blue iridescent colors.
    K08SEMbbfeath06-5B.jpg
  • SEM of Eastern bluebird (Sialia sialis) feathers.  This image is 3 mm wide..These feathers have micro-structures that reflect blue light.  These microscopic features allow the bird to display bright blue iridescent colors.
    K08SEMbbfeath06-5.jpg
  • SEM of Eastern bluebird (Sialia sialis) feathers.  This image is 500 um wide..These feathers have micro-structures that reflect blue light.  These microscopic features allow the bird to display bright blue iridescent colors.
    K08SEMbbfeath10blu2.jpg
  • SEM of Eastern bluebird (Sialia sialis) feathers.  This image is 3 mm wide..These feathers have micro-structures that reflect blue light.  These microscopic features allow the bird to display bright blue iridescent colors.
    K08SEMbbfeath06-5B.jpg
  • Thermogram of two Cinnamon Teal Ducks. (Anas cvanoptera)  Note the warm leg on the duck on the right - the ducks tuck one leg under their feathers to keep warm.  The different colors represent different temperatures on the object. The lightest colors are the hottest temperatures, while the darker colors represent a cooler temperature.  Thermography uses special cameras that can detect light in the far-infrared range of the electromagnetic spectrum (900?14,000 nanometers or 0.9?14 µm) and creates an  image of the objects temperature..
    ir07-1309.jpg
  • Carpet beetle larva. Colored scanning electron micrograph (SEM) of a carpet beetle (Anthrenus sp.)  These larvae are a significant pest, feeding on animal materials including fur, feathers, hair, leather and other fabrics and stored food products. The larvae can survive for two to three years indoors, before hatching into free-living adult beetles. They are covered in hairs (setae) that can cause irritation to humans on contact with skin or if inhaled. Magnification: x110 when printed 10 centimeters wide.
    K13-SEM-carpetbeetle001.jpg
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