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A Hook gauge evaporimeter is a precision instrument used to measure changes in water levels due to evaporation. [1] It is used to precisely measure the level of a free water surface as an evaporation pan or a tank.
It consists of a spring fixed at one end with a hook to attach an object at the other. [1] It works in accordance with Hooke's Law, which states that the force needed to extend or compress a spring by some distance scales linearly with respect to that distance. Therefore, the scale markings on the spring balance are equally spaced.
An instrument used to measure the proper acceleration of a body irrespective of other forces. acoustics The branch of physics dealing with the production, transmission, and effects of sound. adhesion adhesion is what makes things stick together. It's the force that allows tape to stick to a surface or glue to hold two objects together. Contrast ...
A decimal balance uses the lever in which the arm for weights is 10 times longer than the arm for weighted objects, so that much lighter weights may be used to weigh heavy object. [11] Similarly a centesimal balance uses arms in ratio 1:100. For a simple pan balance to be in equilibrium, the fulcrum must be offset from the lever arm.
In physics, Hooke's law is an empirical law which states that the force (F) needed to extend or compress a spring by some distance (x) scales linearly with respect to that distance—that is, F s = kx, where k is a constant factor characteristic of the spring (i.e., its stiffness), and x is small compared to the total possible deformation of the spring.
A modern cant hook. A log driver using a peavey. A cant hook, pike, or hooked pike is a traditional logging tool consisting of a wooden lever handle with a movable metal hook called a dog at one end, used for handling and turning logs and cants, especially in sawmills. A cant hook has a blunt end, or possibly small teeth for friction.
If you believe in fairies, there’s a good chance you grew up loving the 1991 film Hook. The Steven Spielberg-directed adventure movie starred the late Robin Williams as Peter Banning, a.k.a. the ...
An evaporation pan is used to hold water during observations for the determination of the quantity of evaporation at a given location. Such pans are of varying sizes and shapes, the most commonly used being circular or square. [3] The best known of the pans are the "Class A" evaporation pan and the "Sunken Colorado Pan". [4]