to drop a cat takes a quarter of a second to catch a rat takes one tenth of a sec it takes a fraction of a second to throw a p to see things better to see things better this is the job of the high speed camera you've just seen pictures taken that are right several hundred times faster than normal projections but you've seen fast action that was the film just about the same as any camera but the film passes the aperture so quickly it would seem it could never catch and hold a sharp image this roll of film hundreds of seconds of projection time can catch an event of the film mode sweeps the image with the continuous motion of the film and aperture plate restricts the image to the desired frame area of the film but let's see how this engineering analysis tool is put to work in the research and development in scientific investigation in manufacturing aerospace programs are large users of high speed cameras to study the performance of entire rocket vehicles these cameras also studied systems in time part any one of which could affect the entire project rocket engines developed tested improve that hercules polar company near salt lake city utah engineers are designing and developing solid fuel rocket motors for america's missile launch on this remote mountainside is a production line for package calls in the test cells each firing is a one time thing with no chance to repeat no test of run without the high speed camera or when they're fast action these films slow the act magnifying time to show the engineers what really happened subject for this test a rocket motor with more than thirty thousand pounds and in particular  they move his head he knows the images focus sharply at the film plane but these cameras take no special skill a good cameraman master them in short order even this advanced model which takes the twelve one and put magazine and features precision speed regulation the subject is ready for the test and so are the high speed camera will see it first this film was the normal camera  what happens when the motor starts on the red plug snap on it's too fast for the eye or for the normal cam in the fast back film what's the plug blow on the action and scratch one hundred tons clearly revealing the functioning of the engine start but sometimes engineers while most even they want to see inside a rocket and that north american aviation rocket dein division this is a glass wall liquid rocket and doesn't look much like a rocket engine you think you're right you're looking at steel framework holding the glass walls which are the sides of a cutaway research and now you're looking nozzle end of the life of rocket and you can see the edges of two blast walls on each side you can see the special plate to deliver the fuel this cutaway engine gives the engineers a look inside the combustion chamber but when you're dealing with fast action there is no way to really see what is happening without the high speed camera here at night again is the firing as it would seem to the naked on the run must be short go avoid overheating the glass but how did the engine light on what were the characteristics of the fuel mixing and burning in the each color is significant the engineer can study a normal stable float and by causing it to be unstable he can study erratic burning which could destroy a rocket  with new knowledge from this high speed photography he can improve the reliability and performance of his pro even the color and pulsations of the light from the burn out are meaningful when slowed three hundred t i speed cameras help engine air's study a new kind of like the light from a laser beam light with enough energy to even explode a balloon is being studied in the laboratory the aerospace corporation the study of laser technology offers much promise for the first time it is possible to produce light which is very directional go errant and intense the heart of this laser is a ruby rod which is energized by  light builds up in the rod and comes out in a brilliant polls of concentrated light energy liquid nitrogen cool does apparatus something he generated is considered lebrecht or studies are aimed at channeling this intense beam for applications this plastic block will receive a laser poles with a temperature of about fourteen thousand degrees fahrenheit the impact of the light beam tips it just like and i think the beam of light can be focused so sharply that it will drill a hole in the hard steel of a razor blade can see the vocal chords move apart from breathing and come together to make some but to see the vibration here at about one hundred cycles per second he needs a high speed camera at them five thousand frame rate so i north american aviation the minuteman guidance system is in production even these tiny resistors must meet the highest standards of reliability so the missile will be ready at all times and many lead bending machines these costly elements are carefully prepared for assembly at a rate of several thousand per hour but there must be no damage as the machines clamp and shear and bend the leads from the minute to resist or quality control engineers use a high speed camera cured at regular intervals i speed films such as this is reviewed by the quality reliability and standards department and the machine is tagged acceptable when they see the proper action these motions which  completed in a few tenths of a second are expanded and magnified in time to thirty seconds or more but fast action is more than research and development more than quality control in manufacturing such as that one thing where i speed photography is the key to productivity when you have row upon row of production machines even a small increase in machine speed and make a big difference in production and you afford this can you afford to reduce production rates not if you want to stay ahead of your competition how can you see what's really at this point the needles are performing three hundred fifty knitting actions per second set up of the high speed camera is simple the knitting needles are poised and ready how do they function that the desired the photography sometimes takes only a second literally a second and a fast action which is a meaning with more to the eye and to the ordinary camera turns into a meaningful picture when slowed several hundred time you can reverse these films and study the action over and over until you know just what happened improve the productivity of the longer you maintain a satisfactory product even a small increase in machine rate can deliver a good return on your investment for high speed photographic research it takes a variety of cameras to meet many different requirements of the thirty past x models these are representative simple and low prices this one hundred foot sixteen millimeter model which can operate from one hundred fifty to eight thousand frames per se and eight millimeter these cameras can operate up to eighteen thousand frames protect some cameras have to take england as this larger four hundred foot mount this magazine type camera has a start stop capability and superior resolution it carries a twelve hundred foot magazine for the observation of longer event but perhaps the most important feature is the close loop servo speed control the camera will accelerate the film to the desired frame rate and then maintain this rate on a flat speed curve for simple data reduction brass tacks cameras are also available in thirty five millimeter they are all ruggedized and designed to operate in tough environment in addition there's a complete line of accessories such as this combined power supply and programmer for controlling the power and for synchronizing the cam and the event the stack cameras villa variety of needs for various applications and budgets the use of these cameras is limited principally by the ingenuity of lets look at a few contrasts in motion perhaps your imagination will relate your own problems as they might be solved it like to get right in there and see every detail of this high speed cutting edge slowed several hundred times by the count or your welding with a new type of rod and you need to see the effect the welding current this action is photographed at sixty five hundred pictures per you're shelling kernels of fresh corn from the car and your camera stretches the action seventy five times to see things better rates you can't tell whether the valve close you can went past x slows the action over one hundred fifty times you're conducting crash research to make cars safer to drive in the right in when the action is slowed you can see what really happens at the moment of impact and roll engineers can learn more about think the pictures they must build into the x you'll see action you've never seen before whether you have to catch a rat drop a cat blink an eye or throw  cruelly a prime microscope magnifying time and space if that would hasten to your problem is limited only by your own imagination