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  • A fan in motion. The blades move so tast that they turn into a blur.
    K17-fan-motion_4740.jpg
  • A fan in motion. The blades move so tast that they turn into a blur. There is no safety cover on this fan.
    K17-fan-nocover-still_4735.jpg
  • A ball bounces on a spring.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    spring8081.jpg
  • A black belt karate expert performs a punch. A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    karate8314.jpg
  • Feet walking.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    walker8472.jpg
  • A drummer shows off his drum moves.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    drummer8431.jpg
  • A dancers performing modern dance.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    dance8599.jpg
  • Two dancers performing modern dance.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    Dance8589.jpg
  • A black belt karate expert performs a kick. A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    karate8329.jpg
  • A dancer performing modern dance.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    dance8612.jpg
  • A Weightlifter.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    weightlifter8496.jpg
  • Feet walking.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    walking8462.jpg
  • A boy juggles three balls.  The motion is recorded by a special stroboscopic camera.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    juggle_8268.jpg
  • A boy juggles three balls.  The motion is recorded by a special stroboscopic camera.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    juggle8288.jpg
  • April Laragy, the lead singer of The Atomic Swindlers shows off her guitar moves.  A special stroboscopic camera records the motion.  The record of the motion can be analyzed to show both the timing and range of the motion.  This type of image is very important in the science of biomechanics.
    April8337.jpg
  • 10 minutes of cloud motion captured by adding multiple still images into one image. This stacked image  is created by mathematically by  taking the lightest part of each image and adding the sequence of images together.  The result is a record of the cloud motion.
    K13-cloudstack11.jpg
  • 15 minutes of cloud motion captured by adding multiple still images into one image.  This stacked image  is created by mathematically taking the lightest part of each image and adding the sequence of images together.  The result is a record of cloud motion.
    K13-cloudstack13.jpg
  • The motion of a planets orbit around a star is simulated by rolling a ball on a curved surface of plastic..
    K11-gravitywell006.JPG
  • 20 minutes of cloud motion captured by adding multiple still images into one image. This stacked image  is created by mathematically taking the lightest part of each image and adding the sequence of images together.  The result is a record of cloud motion.
    K13-cloudstack03.jpg
  • The motion of a planets orbit around a star is simulated by rolling a ball on a curved surface of plastic..
    K11-gravitywell005.JPG
  • A six month pinhole photo of the sun moving across the sky. The exposure started December 21, 2011 and ended on June 21, 2012.  The suns realative motion is recorded on one image.  Photographed in Rochester, New York, USA.
    K13-sun2-dec21-june21-2012.jpg
  • The motion of a planets orbit around a star is simulated by rolling a ball on a curved surface of plastic..
    K11-gravitywell009.JPG
  • A six month pinhole photo of the sun moving across the sky. The exposure started December 21, 2011 and ended on June 21, 2012.  The suns relative motion is recorded on one image.  The lines are the sun crossing the sky each day - while the breaks in the lines are where the clouds blocked the sun.  Photographed in Rochester, New York, USA.
    K13-6-21-2012Small.jpg
  • A Tennis Ball hitting a Racket .  Note the deformation of both the tennis ball and the tennis racket.  The ball has a velocity of approximately 20 meters per second in this image.  This image was photographed using high speed flash to freeze the motion taking place in 1/15,000th of a second.
    tennis8526.jpg
  • The motion of a planets orbit around a star is simulated by rolling a ball on a curved surface of plastic..
    K11-gravitywell007.JPG
  • A pin is dropped and photographed with stroboscopic motion. In this photograph the strobe is flashing 3200 times a min.
    pin_00147_RT8.jpg
  • A Tennis Ball hitting a Racket .  Note the deformation of both the tennis ball and the tennis racket.  The ball has a velocity of approximately 20 meters per second in this image.  This image was photographed using high speed flash to freeze the motion taking place in 1/15,000th of a second.
    tennis8527.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-feather-drop.jpg
  • A baton is tossed in a strobe light.  The strobe flashes 250 times a second.  The baton rotates around its center of mass and follows parabolic motion.
    K12-strobo-stick7850.jpg
  • A baton is tossed in a strobe light.  The strobe flashes 250 times a second.  The baton rotates around its center of mass and follows parabolic motion.
    K12-strobo-stick7845.jpg
  • A pen is tossed in a strobe light.  The strobe flashes 250 times a second.  The baton rotates around its center of mass and follows parabolic motion.
    K12-strobo-pen7889.jpg
  • A demonstration electric motor.  This motor works on the principles of electromagnetism. Electric current running through the coil a magnetic field that opposes the bar magnets and causes the central shaft to rotate.  This converts electrical energy into rotary mechanical motion. .
    K11-motor4179.jpg
  • This image of a man over inflating a balloon was taken with a high speed flash system. The motion is effectively frozen in time due to the short duration of the flash (1/20,000 th of a second). The balloon was filled with a few milliliters of water before it was inflated. When the balloon is popped, the gas quickly expands and cools. This cooling converts the water vapor in the balloon into suspended water droplets which can be seen as a cloud.
    tedk0025.jpg
  • A black belt karate expert brakes a wooden board with his bare hand..The image was photographed using high speed flash to freeze the motion taking place in 1/15,000th of a second. .
    karate_9324.jpg
  • This image is part of a sequence where a man over inflates a balloon until it burst.  The image was taken with a high speed flash system. The motion is effectively frozen in time due to the short duration of the flash (1/20,000 th of a second). The balloon was filled with a few milliliters of water before it was inflated. When the balloon is popped, the gas quickly expands and cools. This cooling converts the water vapor in the balloon into suspended water droplets which can be seen as a cloud.
    K11-hsballoon6873A.jpg
  • This image is part of a sequence where a man over inflates a balloon until it burst.  The image was taken with a high speed flash system. The motion is effectively frozen in time due to the short duration of the flash (1/20,000 th of a second). The balloon was filled with a few milliliters of water before it was inflated. When the balloon is popped, the gas quickly expands and cools. This cooling converts the water vapor in the balloon into suspended water droplets which can be seen as a cloud.
    K11-hsballoon6863A.jpg
  • This image is part of a sequence where a man over inflates a balloon until it burst.  The image was taken with a high speed flash system. The motion is effectively frozen in time due to the short duration of the flash (1/20,000 th of a second). The balloon was filled with a few milliliters of water before it was inflated. When the balloon is popped, the gas quickly expands and cools. This cooling converts the water vapor in the balloon into suspended water droplets which can be seen as a cloud.
    K11-hsballoon6826.JPG
  • A man throws a boomerang at night with built in lights.  The Camera's shutter is kept open for the flight to record the motion.
    K08boomerang-combo2.jpg
  • A baton is tossed in a strobe light.  The strobe flashes 250 times a second.  The baton rotates around its center of mass and follows parabolic motion.
    K12-strobo-stick7844 copy.jpg
  • A baton is tossed in a strobe light.  The strobe flashes 250 times a second.  The baton rotates around its center of mass and follows parabolic motion.
    K12-strobo-stick7843.jpg
  • A black belt karate expert brakes a wooden board with his bare hand.  The image was photographed using high speed flash to freeze the motion taking place in 1/15,000th of a second. ..
    karate_9535sm.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
  • As an individual piece of spaghetti is broken, the spaghetti fractures into several pieces that fly off..The exact  reason that compressive and tension forces cause the spaghetti to break in this is currently under study.   Spaghetti breaks in the same way as smokestacks break when they fall during demolition.  This breaking patter is often called the “smokestack problem”  The motion was captured with a 1/20,000th of a second flash, while the room lights were responsible for the blur in the photograph..
    K11-Spaghetti001.jpg
  • A Minolta Auto Zoom 8mm motion picture camera is shown in X-ray.
    K19X-Minolta-Auto-Zoom-8mm-015BW.jpg
  • This is a demonstration of a ball rolling down an incline, slowing down, and then speeding back to where it started.  The ball is rolling from left to right in this image.  The analysis of this demo requires the use of the  kinetic energy, potential energy, rolling energy, and friction.   The  ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time.
    K12-coaster8298.jpg
  • A four month pinhole photo of the sun moving across the sky.  The exposure ended on December 21, 2011.  The sun is at the lowest angle in the sky on the winter equinox. Photographed in Rochestester, New York, USA
    K12-skypinhole21-2011B.jpg
  • A four week pinhole photo of teh sun moving across the sky.
    K12-skynov7-2011medium.jpg
  • A simulation of gravity showing curved space-time.  The ball represents the sun and is resting on a sheet of plastic that stretches under its weight.  The curved sheet of plastic is a way to visualize the way a gravity curves space.
    K11-gravitywell003.JPG
  • A two week pinhole photo of the sun moving across the sky.  The exposure ended on september 17, 2011.  The sun is at the lowest angle in the sky on the winter equinox. Photographed Keuka Lake, New York, USA
    K12-skypinhole9-17-2011A.jpg
  • A four month pinhole photo of the sun moving across the sky.  The exposure ended on December 21, 2011.  The sun is at the lowest angle in the sky on the winter equinox. Photographed in Rochestester, New York, USA
    K12-skypinhole21-2011A.jpg
  • A golf club moving at 97 miles per hour (43.36 m/s) hits a stationary golf ball.  The action is recorded by a fast strobe with a duration of 1/20,000th of a second.  In all collisions momentum is conserved. .
    K07-golfb0167.jpg
  • A golf club moving at 97 miles per hour (43.36 m/s) hits a stationary golf ball.  The action is recorded by a fast strobe with a duration of 1/1,000,000th of a second.  In all collisions momentum is conserved. .
    K07-golfb0152.jpg
  • A golf club moving at 97 miles per hour (43.36 m/s) hits a stationary golf ball.  The action is recorded by a fast strobe with a duration of 1/1,000,000th of a second.  In all collisions momentum is conserved.   This ball is a soft driving ball - not a regulation play ball..
    K07-golfb0147.jpg
  • A stroboscopic image of a hammer striking a nail into wood.
    K09hammer4266.jpg
  • A drip of water splashes as it hits a shallow dish of water.  The action is frozen in time with a high-speed flash with a duration of 1/20,000th of a second.  The impact of the water droplet creates a unique crown shaped splash.
    070227drip0449.jpg
  • A drip of water splashes as it hits a shallow dish of water.  The action is frozen in time with a high-speed flash with a duration of 1/20,000th of a second.  The impact of the water droplet creates a unique crown shaped splash.
    070227drip0427.jpg
  • Vibrating strings on a base electric guitar. When plucked, the string vibrates at a specific frequency, which determines the pitch of the note. The vertical lines on the fretboard of the guitar mark where fingers should be placed to shorten or lengthen the vibrating part of the string. Shortening the string produces a note with a higher pitch, lengthening it lowers the note. The image was collected with a digital camera with a fast rolling shutter.
    K17strings-on-base-7.jpg
  • A tennis ball moving at 95 feet per second, or 28.95 meters per second collides with a cinderblock wall. During the collision, the tennis ball compresses. In this type of Collison momentum is conserved. The tennis ball was launched from an air cannon as is commonly used to practice tennis.
    K18HittingWall6919.jpg
  • A tennis ball moving at 95 feet per second, or 28.95 meters per second is captured in flight just after a collision with a  cinderblock wall. The tennis ball was launched from an air cannon as is commonly used to practice tennis.
    K18AfterCollision6922.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
  • This is a demonstration of a ball rolling up an incline, slowing down, and then speeding up as it rolls down the opposite side.  The ball is rolling from left to right in this image.  The analysis of this demo requires the use of the  kinetic energy, potential energy, rolling energy, and friction.   The  ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time.
    K12-coaster8263.jpg
  • This is a demonstration of a ball rolling up an incline, slowing down, and then speeding up as it rolls down the opposite side.  The ball is rolling from left to right in this image.  The analysis of this demo requires the use of the  kinetic energy, potential energy, rolling energy, and friction.   The  ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time.
    K12-coaster8207blue.jpg
  • .This is a demonstration of a ball rolling down an incline and making the loop-the-loop path.  The velocity required to make the loop is called the critical velocity.   The analysis of this demo requires the use of the centripetal force, kinetic energy, potential energy, rolling energy, and friction.  This is also an example of a critical velocity.  The loop is 19.5 cm in diameter and the ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time. .
    K12-full-loop8115red.jpg
  • .This is a demonstration of a ball rolling down an incline. The analysis of this demo requires the use of the  kinetic energy, potential energy, rolling energy, and friction.   The  ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time. .
    K12-full-lAccel8115red.jpg
  • .This is a demonstration of a ball rolling down an incline. The analysis of this demo requires the use of the  kinetic energy, potential energy, rolling energy, and friction.   The  ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time. .
    K12-full-lAccel8115blue.jpg
  • A digital streak image of a bouquet of flowers. This type of image is used to test the stability of digital time-lapse camera systems as well as collect image data around a circular object.  In this case the camera is tilted with respect to the rotation and a colorful twist of colors is the wonderful result.
    K09s2A-074.jpg
  • A drip of water splashes as it hits a shallow dish of water.  The action is frozen in time with a high-speed flash with a duration of 1/20,000th of a second.  The impact of the water droplet creates a unique crown shaped splash.
    070227drip0319.jpg
  • A tennis ball moving at 95 feet per second, or 28.95 meters per second collides with a cinderblock wall. During the collision, the tennis ball compresses. In this type of Collison momentum is conserved. The tennis ball was launched from an air cannon as is commonly used to practice tennis.
    K18HittingWall6913.jpg
  • Vibrating strings on a base electric guitar. When plucked, the string vibrates at a specific frequency, which determines the pitch of the note. The vertical lines on the fretboard of the guitar mark where fingers should be placed to shorten or lengthen the vibrating part of the string. Shortening the string produces a note with a higher pitch, lengthening it lowers the note. The image was collected with a digital camera with a fast rolling shutter.
    K17strings-on-base-9.jpg
  • Vibrating strings on a base electric guitar. When plucked, the string vibrates at a specific frequency, which determines the pitch of the note. The vertical lines on the fretboard of the guitar mark where fingers should be placed to shorten or lengthen the vibrating part of the string. Shortening the string produces a note with a higher pitch, lengthening it lowers the note. The image was collected with a digital camera with a fast rolling shutter.
    K17strings-on-base-5.jpg
  • This is a demonstration of a ball rolling up an incline, slowing down, and then speeding up as it rolls down the opposite side.  The ball is rolling from left to right in this image.  The analysis of this demo requires the use of the  kinetic energy, potential energy, rolling energy, and friction.   The  ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time.
    K12-coaster8207.jpg
  • .This is a demonstration of a ball rolling down an incline and almost making the loop-the-loop path.  The ball does not have enough velocity to make the loop.  The velocity required to make the loop is called the critical velocity, and this show a situation where the ball leaves the surface of the track, or the normal force from the track on the ball is zero.  The analysis of this demo requires the use of the centripetal force, kinetic energy, potential energy, rolling energy, and friction.  This is also an example of a sub critical velocity.  The loop is 19.5 cm in diameter and the ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time. .
    K12-looploop8096white.jpg
  • .This is a demonstration of a ball rolling down an incline and making the loop-the-loop path.  The velocity required to make the loop is called the critical velocity.   The analysis of this demo requires the use of the centripetal force, kinetic energy, potential energy, rolling energy, and friction.  This is also an example of a critical velocity.  The loop is 19.5 cm in diameter and the ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time. .
    K12-full-loop8115white.jpg
  • A stroboscopic image of a hammer striking a nail into wood.
    K09hammer4403.jpg
  • Smoke patterns. Smoke forming vortices (swirling patterns) in the air. This smoke is from a joss stick, a stick of incense that is burned to produce a fragrant smell.
    smokeIMG_4434.jpg
  • .This is a demonstration of a ball rolling down an incline and almost making the loop-the-loop path.  The ball does not have enough velocity to make the loop.  The velocity required to make the loop is called the critical velocity, and this show a situation where the ball leaves the surface of the track, or the normal force from the track on the ball is zero.  The analysis of this demo requires the use of the centripetal force, kinetic energy, potential energy, rolling energy, and friction.  This is also an example of a sub critical velocity.  The loop is 19.5 cm in diameter and the ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time. .
    K12-looploop8096.jpg
  • A Northern Leopard Frog (Rana pipiens) jumps into water. This species escapes predators by seeking the safety of water.
    IMG_1584-crop.jpg
  • A tennis ball moving at 95 feet per second, or 28.95 meters per second is captured in flight just before it collides with a cinderblock wall. The tennis ball was launched from an air cannon as is commonly used to practice tennis.
    K18BeforeCollision6927.jpg
  • Vibrating strings on a base electric guitar. When plucked, the string vibrates at a specific frequency, which determines the pitch of the note. The vertical lines on the fretboard of the guitar mark where fingers should be placed to shorten or lengthen the vibrating part of the string. Shortening the string produces a note with a higher pitch, lengthening it lowers the note. The image was collected with a digital camera with a fast rolling shutter.
    K17strings-on-base-8.jpg
  • This is a demonstration of a ball rolling up an incline, slowing down, and then speeding up as it rolls down the opposite side.  The ball is rolling from left to right in this image.  The analysis of this demo requires the use of the  kinetic energy, potential energy, rolling energy, and friction.   The  ball is 2.5 cm in diameter. The flash illuminates the scene at 40 hz showing images every  .025 seconds of time.
    K12-coaster8207red.jpg
  • A stroboscopic image of a hammer striking a nail into wood.
    K09hammer4388.jpg
  • The patterns in smoke are studied by illuminating the smoke with a scanning laser. The laser shows the motion in a 2D plain that is easier to study than the 3D motion. The coils represent cross section of fluid vortexes created by the convection currents from the hot smoke rising in the cool air. The source of the smoke is a stick of burning incense.
    K19Laser-Smoke6276.jpg
  • The patterns in smoke are studied by illuminating the smoke with a scanning laser. The laser shows the motion in a 2D plain that is easier to study than the 3D motion. The coils represent cross section of fluid vortexes created by the convection currents from the hot smoke rising in the cool air. The source of the smoke is a stick of burning incense.
    K19Laser-Smoke6022.jpg
  • The patterns in smoke are studied by illuminating the smoke with a scanning laser. The laser shows the motion in a 2D plain that is easier to study than the 3D motion. The coils represent cross section of fluid vortexes created by the convection currents from the hot smoke rising in the cool air. The source of the smoke is a stick of burning incense.
    K19Laser-Smoke6353.jpg
  • The patterns in smoke are studied by illuminating the smoke with a scanning laser. The laser shows the motion in a 2D plain that is easier to study than the 3D motion. The coils represent cross section of fluid vortexes created by the convection currents from the hot smoke rising in the cool air. The source of the smoke is a stick of burning incense.
    K19Laser-Smoke6174.jpg
  • A .22 caliber bullet is fired from a rifle.  The schlieren optical system images different air pressures with different colors of light.  The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound.  The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle.   This image freezes the motion by using a high speed flash with a duration of  1/2,000,000th of a second.
    K08-22quickshot_4400.jpg
  • A .45 caliber bullet exiting the gun. This image is part of a series taken 1/1,000,000th of a second apart.  The gunpowder still has velocity and will travel up to 20 feet from the point of discharge.  This gunpowder can be detected on clothing and skin to determine the location of individuals at the scene of a crime.  The schlieren optical system images different air pressures with different colors of light.   This image freezes the motion by using a high speed flash with a duration of  1/2,000,000th of a second.
    K08-45auto-sequence1.jpg
  • A .357 caliber bullet is fired from a hand gun.  The schlieren optical system images different air pressures with different colors of light.  The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound.  The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle.   This image freezes the motion by using a high speed flash with a duration of  1/2,000,000th of a second.
    K08-357magt4426.jpg
  • The supersonic shockwave that exits the barrel a .22 caliber rifle in front of the bullet.  This pressure wave is responsible for the loud sound of the gun.  The schlieren optical system images different air pressures with different colors of light.   This image freezes the motion by using a high speed flash with a duration of  1/2,000,000th of a second.
    K08-22quicksho4416.jpg
  • Here a candle is seen in a polarizing interferometer. The different colors of light represent different air pressures. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second.
    K20-polint-candle_8452.jpg
  • A .22 caliber bullet is fired from a rifle. The pullet is passing through a thin sheet of glass. Here the bullet is seen in a polarizing interferometer. The different colors of light represent different air pressures. The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound. The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second.
    K20-polint-bullet_0046.jpg
  • A .22 caliber bullet is fired from a rifle. The pullet is passing through a thin sheet of glass. Here the bullet is seen in a polarizing interferometer. The different colors of light represent different air pressures. The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound. The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second. The origional colors have been changed in Photoshop.
    K20-polint-bullet_0030X.jpg
  • This is an X-ray of a child's boot with electronics.  The batteries are mounded in the sole of the boot and the lights are placed along the sides.  A motion detector in the sole controls the flashing of the lights (light emitting diodes) as the child walks.  These types of boots rise many security issues when a child travels with them on an airplane.  The layout of the electronics and batteries is almost identical to a terrorist bomb placed in the sole of the boot.
    boot-eltblue.jpg
  • A .45 caliber handgun firing a bullet.  This image freezes the motion by using a high speed flash with a duration of   1/2,000,000th of a second.  The sparks are from gunpowder that was still burring as it left the barrel behind the bullet.
    K0845calB_3822B.jpg
  • A .22 caliber bullet is fired from a rifle.  The schlieren optical system images different air pressures with different colors of light.  The lack of a bow wave in front of the bullets shows that the bullet is moving slower than the speed of sound.  This image freezes the motion by using a high speed flash with a duration of  1/2,000,000th of a second.  .
    K08-22subsonic_4411.jpg
  • A .45 caliber bullet exiting the spent gunpowder.  This event takes place approximately 6 inches in front of the gun.  The gunpowder still has velocity and will travel up to 20 feet from the point of discharge.  This gunpowder can be detected on clothing and skin to determine the location of individuals at the scene of a crime.  The schlieren optical system images different air pressures with different colors of light.   This image freezes the motion by using a high speed flash with a duration of  1/2,000,000th of a second.
    K08-22quicksho4424.jpg
  • A .22 caliber bullet is fired from a rifle. The pullet is passing through a thin sheet of glass. Here the bullet is seen in a polarizing interferometer. The different colors of light represent different air pressures. The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound. The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second. The origional colors have been changed in Photoshop.
    K20-polint-bullet_0046X.jpg
  • A .22 caliber bullet is fired from a rifle. Here the bullet is seen in a polarizing interferometer. The different colors of light represent different air pressures. The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound. The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second.
    K20-polint-bullet_0015.jpg
  • A .22 caliber bullet is fired from a rifle. The pullet is passing through a thin sheet of glass. Here the bullet is seen in a polarizing interferometer. The different colors of light represent different air pressures. The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound. The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second. The origional colors have been changed in Photoshop.
    K20-polint-bullet_0046X.jpg
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Ted Kinsman

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