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Videos search results: "high-speed"
 
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Title          
FASTCAM SA1 : DigInfo 
   
 
Abstract    
DigInfo - http://movie.diginfo.tv Photron, who produces high-speed video camera solutions, has just released its FASTCAM SA1. This high-speed camera can film 1,024x1,024 full-frame pixels at 5,400 frame/s. Segmented frame is available as well: 1,024x512 pixels at 10,000 frame/s; 128x128 pixels at 90,000 frame/s; and 128x32 pixels at the maximum speed of 150,000 frame/s. The camera comes with a 2-microsecond electronic shutter, an embedded CMOS sensor for color and monochrome shoots, and a collection of presets so as to not to initially overwhelm the user. It comes with 8GB of memory (easily expandable to 16GB) which can be subdivided into folders so you can organize your photos more effectively.
 
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Added By - matlabuser
Subject - Laboratory Equipment
Document Type - Demonstration
Video Duration - 00:01:31
 
 
 

 

Title          
FASTCAM MH4-10K : DigInfo 
   
 
Abstract    
DigInfo - http://movie.diginfo.tv Photron developed this high-speed camera system for use in vehicle safety tests. A single controller connects with up to four camera heads to enable the system to shoot high-speed, high-resolution imagery. By connecting multiple controllers to the system it is possible to monitor a greater number of angles using 8 to 12 camera heads. This camera system makes it possible to shoot high-speed (2,000 frames per second), high-resolution (512x512 pixels) images simultaneously from four different angles in order to evaluate motor vehicle safety during crash tests. The system enables engineers to obtain more detailed results than with previous camera systems. In motor vehicle crash tests it is necessary to shoot various locations within the vehicle compartment, and so it is necessary to position the cameras in confined spaces. To satisfy these requirements, Photron miniaturized the system camera heads. A single camera head weighs 100g and measures 35x35x34mm. Because the camera head is so small that it fits in the palm of even the tiniest of hands, it is possible to place numerous camera heads in previously hard to view spots such as the floor of the passenger seat, under the steering wheel, and so forth....
 
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Added By - matlabuser
Subject - Laboratory Equipment
Document Type - Demonstration
Video Duration - 00:01:48
 
 
 

 

Title          
high speed camera: lighter 
   
 
Abstract    

A high speed camera is a device used for recording slow-motion playback films, or used for scientific study of transient phenomena.

http://en.wikipedia.org/wiki/High_speed_camera 

A normal motion picture is filmed and played back at 24 frames per second, while television uses 25 frames/s (PAL) to 29.97 frames/s (NTSC). High speed cameras can film up to 250,000 frames/s by running the film over a rotating prism or mirror instead of using a shutter, thus reducing the need for moving parts. Using this ...

 
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Added By - matlabuser
Subject - Laboratory Equipment
Document Type - Patents and Inventions
Video Duration - 00:00:24
 
 
 

 

Title          
UBC Tow Tank Test 2 
   
 
Abstract    
Seakeeping test of "Overdue" fishing vessle at high speed in irregular waves. Test conducted at the UBC Ocean Engineering Centre Tow Tank for course: MECH 443.
 
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Added By - quantum
Subject - Oceanography and Ocean Engineering
Document Type - Experiments
Video Duration - 00:00:51
 
 
 

 

Title          
Aerodynamics 
   
 
Abstract    
Aerodynamics (shaping of objects that affect the flow of air or gas) is a branch of fluid dynamics concerned with the study of forces generated on a body in a flow. The solution of an aerodynamic problem normally involves calculating for various properties of the flow, such as velocity, pressure, density, and temperature, as a function of space and time. Understanding the flow pattern makes it possible to calculate or approximate the forces and moments acting on bodies in the flow. The use of mathematical analysis, empirical approximation and wind tunnel experimentation form the scientific basis for heavier-than-air flight.


Airflow across an aircraft wing. A greater angle deflects air downwards at a geater angle to increase LiftAerodynamic problems can be classified in a number of ways. The flow environment defines the first classification criterion. External aerodynamics is the study of flow around solid objects of various shapes. Evaluating the lift and drag on an airplane, the shock waves that form in front of the nose of a rocket or the flow of air over a hard drive head are examples of external aerodynamics. Internal aerodynamics is the study of flow through passages in solid objects. For instance, intern...
 
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Added By - 123456
Subject - Aeronautics and Astronautics
Document Type - Experiments
Video Duration - 00:00:02
 
 
 

 

Title          
Speed of Sound 
   
 
Abstract    

Sound is a vibration that travels through an elastic medium as a wave. The speed of sound describes how far this wave travels in a given amount of time. In dry air at 20 °C (68 °F), the speed of sound is 343 meters per second (1,125 ft/s). This equates to 1,236 kilometers per hour (768 mph), or about one mile in five seconds. This figure for air (or any given gas) increases with gas temperature (equations are given below), but is nearly independent of pressure or density for a given gas. For different gases, the speed of sound is dependent on the mean molecular weight of the gas, and to a lesser extent upon the wa...

 
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Added By - reberg
Subject - Physics
Document Type - Demonstration
Video Duration - 00:04:04
 
 
 

 

Title          
David Waite's Transformation Equation's 
   
 
Abstract    
In physics, the Lorentz transformation converts between two different observers' measurements of space and time, where one observer is in constant motion with respect to the other. In classical physics (Galilean relativity), the only conversion believed necessary was x' = x − vt, describing how the origin of one observer's coordinate system slides through space with respect to the other's, at speed v and along the x-axis of each frame. According to special relativity, this is only a good approximation at much smaller speeds than the speed of light, and in general the result is not just an offsetting of the x coordinates; lengths and times are distorted as well. If space is homogeneous, then the Lorentz transformation must be a linear transformation. Also, since relativity postulates that the speed of light is the same for all observers, it must preserve the spacetime interval between any two events in Minkowski space. The Lorentz transformations describe only the transformations in which the event at x=0, t=0 is left fixed, so they can be considered as a rotation of Minkowski space. The more general set of transformations that also includes translations is known as the Poincaré group.
 
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Added By - mems
Subject - Mathematics
Document Type - Discussion
Video Duration - 00:09:32
 
 
 

 

Title          
SR 71 Blackbird 
   
 
Abstract    
The Lockheed SR-71 is an advanced, long range, Mach 3+ strategic reconnaissance aircraft developed from the Lockheed A-12 and YF-12 aircraft by the Lockheed Skunk Works as a Black project. The SR-71 was unofficially named the Blackbird, and called the Habu by its crews, referring to an Okinawan species of pit viper. Clarence "Kelly" Johnson was responsible for many of the design's innovative concepts. A defensive feature of the aircraft was its high speed and operating altitude, whereby, if a surface-to-air missile launch were detected, standard evasive action was simply to accelerate. The SR-71 line was in service from 1964 to 1998, with 12 of the 32 aircraft destroyed in accidents, though none was lost to enemy action. Since 1976, it has held the world record for the fastest air breathing manned aircraft, a record previously held by the YF-12.
 
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Added By - autocrawler
Subject - Aeronautics and Astronautics
Document Type - Documentary
Video Duration - 00:01:19
 
 
 

 

Title          
Tensors in Special relativity. 
   
 
Abstract    
A blog-lecture version of chapter two section two of Modern Relativity's special relativity by David Waite. Special relativity (SR) (aka the special theory of relativity (STR)) is the physical theory of measurement in inertial frames of reference proposed in 1905 by Albert Einstein in his article "On the Electrodynamics of Moving Bodies"[1]. It generalizes Galileo's principle of relativity — that all uniform motion was relative, and that there is no absolute and well-defined state of rest (no privileged reference frames) — from mechanics to all the laws of physics, including electrodynamics. To stress this point, Einstein not only widened the postulate of relativity, but added the second postulate that all observers will always measure the speed of light to be the same no matter what their state of uniform linear motion.[2] This theory has a variety of surprising consequences that violate common sense, but all have been experimentally verified. Special relativity overthrows Newtonian notions of absolute space and time by stating that time and space are perceived differently in the sense that measurements of length and time intervals depend on the motion of the observer. It yields the equivalence of matter and energy, as ...
 
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Added By - scienceforum
Subject - Physics
Document Type -
Video Duration - 00:09:51
 
 
 

 

Title          
3.5 miles in 10 seconds 
   
 
Abstract    
Born in Berkeley, California, Crossfield grew up in California and Washington. He served with the U.S. Navy as a flight instructor and fighter pilot during World War II. From 1946-1950, he worked in the University of Washington's Kirsten Wind Tunnel while earning his bachelor's(1949) and master's degrees(1950) in aeronautical engineering. In 1950, he joined the National Advisory Committee for Aeronautics' High-Speed Flight Station (now the NASA Dryden Flight Research Center) at Edwards Air Force Base, California, as an aeronautical research pilot. In those early days, it was called Muroc Field, reverse spelling of the wealthy California Corum family who donated the land to the Army Air Corps. Crossfield joined the Navy because he could enter flight training two weeks earlier than a date offered by the Army Air Corps.

Crossfield demonstrated his flight test skills on his very first student solo. His instructor was not available on the designated early morning, so Crossfield, on his own, took off and went through maneuvers he had practiced with his instructor, to include spin entry and spin recovery. During the first spin, Crossfield experienced vibrations, banging, and noise in the aircraft that he had never encountere...
 
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Added By - 123456
Subject - Aeronautics and Astronautics
Document Type - Profile
Video Duration - 00:00:02
 
 
 

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