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A ball head is a metal or plastic apparatus placed on top of a tripod that increases stability and provides faster, more accurate rotation of the camera for the photographer. They are lighter than traditional three-way pan-tilt tripod heads. [citation needed] With fewer parts and a much simpler mechanism, ball heads are usually preferred by ...
A tripod head is the part of a tripod system that attaches the supported device (such as a camera) to the tripod legs, and allows the orientation of the device to be manipulated or locked down. Modular or stand-alone tripod heads can be used on a wide range of tripods, allowing the user to choose which type of head best suits their needs.
In the above example, if the energy efficiency is 70%, the water delivered will be 70% of 20%, i.e. 14%. Assuming a 2-to-1 supply-head-to-delivery-head ratio and 70% efficiency, the delivered water would be 70% of 50%, i.e. 35%. Very high ratios of delivery to supply head usually result in lowered energy efficiency.
A ball head utilizes a ball joint to allow rotational movement about all axes from a single point. Some ball heads also have a separate panoramic rotation joint on the base of the head. The head has two main parts, the ball, which attaches to the camera, and the socket, which attaches to the tripod. The camera is attached to the ball by means ...
Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
Robert Eric Miller, an Australian engineer from Sydney, invented the fluid head for motion picture cameras for which he was granted an Australian patent in 1946 and US patent in 1949. [5] He founded Miller Camera Support Equipment in 1954, manufacturing fluid heads and tripods. The same year, he developed the Miller Viscosity Drag.
A hydraulic manifold is a component that regulates fluid flow between pumps and actuators and other components in a hydraulic system. It is like a switchboard in an electrical circuit because it lets the operator control how much fluid flows between which components of a hydraulic machinery.
In fluid dynamics, total dynamic head (TDH) is the work to be done by a pump, per unit weight, per unit volume of fluid.TDH is the total amount of system pressure, measured in feet, where water can flow through a system before gravity takes over, and is essential for pump specification.