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  • 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
  • This is a section of the suspender cable from the Golden Gate Bridge spanning the entrance to San Francisco Bay, California.   The original suspender cable manufactured by the John A Roebling’s Sons Co. was erected in 1936.  This section of the original cable was removed and replaced with new cable during the renovations of 1975-1976.  The cable specifications are it is 2 and 11/16 inches in Diameter and has a rope area of 3.324 Sq. In. Ultimate Strength is 600,000 lb and is made from 229 individual wires.  The weight of the wire is 12 lb per linear foot.  This sample was removed from panel point 49EL on April 14, 1975.  This section is from an original cable length of 929.67 feet.
    goldengate-bridge-cable_0045.jpg
  • An X-ray of an air gun.  This gun shoots plastic pellets by air pressure.  The gun is designed to be the same weight and size as a real hand gun.
    airsoftgun13x19.jpg
  • A Hasselblad 500EL medium format camera is shown in X-ray. This is the model of camera used by the Apollo Astronauts on the surface of the moon. To save weight, only the film pack containing the exposed film was returned to earth. The camera body and lens were left on the surface of the moon.
    K19X-Hasselblad-500EL-05BW.jpg
  • This is a section of the suspender cable from the Golden Gate Bridge spanning the entrance to San Francisco Bay, California.   The original suspender cable manufactured by the John A Roebling’s Sons Co. was erected in 1936.  This section of the original cable was removed and replaced with new cable during the renovations of 1975-1976.  The cable specifications are it is 2 and 11/16 inches in Diameter and has a rope area of 3.324 Sq. In. Ultimate Strength is 600,000 lb and is made from 229 individual wires.  The weight of the wire is 12 lb per linear foot.  This sample was removed from panel point 49EL on April 14, 1975.  This section is from an original cable length of 929.67 feet.
    goldengate-bridge-cable_0029.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
  • This is a section of the suspender cable from the Golden Gate Bridge spanning the entrance to San Francisco Bay, California.   The original suspender cable manufactured by the John A Roebling’s Sons Co. was erected in 1936.  This section of the original cable was removed and replaced with new cable during the renovations of 1975-1976.  The cable specifications are it is 2 and 11/16 inches in Diameter and has a rope area of 3.324 Sq. In. Ultimate Strength is 600,000 lb and is made from 229 individual wires.  The weight of the wire is 12 lb per linear foot.  This sample was removed from panel point 49EL on April 14, 1975.  This section is from an original cable length of 929.67 feet.
    goldengate-bridge-cable_0026.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
  • An X-ray of an air gun.  This gun shoots plastic pellets by air pressure.  The gun is designed to be the same weight and size as a real hand gun.  This is a false color x-ray.
    airsoftgun11x14FC.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
  • This is a section of the suspender cable from the Golden Gate Bridge spanning the entrance to San Francisco Bay, California.   The original suspender cable manufactured by the John A Roebling’s Sons Co. was erected in 1936.  This section of the original cable was removed and replaced with new cable during the renovations of 1975-1976.  The cable specifications are it is 2 and 11/16 inches in Diameter and has a rope area of 3.324 Sq. In. Ultimate Strength is 600,000 lb and is made from 229 individual wires.  The weight of the wire is 12 lb per linear foot.  This sample was removed from panel point 49EL on April 14, 1975.  This section is from an original cable length of 929.67 feet.
    goldengate-bridge-cable_0032.jpg
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Ted Kinsman

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