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A spherometer is an instrument used for the precise measurement of the radius of curvature of a curved surface. Originally, these instruments were primarily used by opticians to measure the curvature of the surface of a lens .
Animal Farm is a satirical allegorical novella, in the form of a beast fable, [1] by George Orwell, first published in England on 17 August 1945. [2] [3] It tells the story of a group of anthropomorphic farm animals who rebel against their human farmer, hoping to create a society where the animals can be equal, free, and happy.
Lens clock. A lens clock is a mechanical dial indicator that is used to measure the dioptric power of a lens.It is a specialized version of a spherometer.A lens clock measures the curvature of a surface, but gives the result as an optical power in diopters, assuming the lens is made of a material with a particular refractive index.
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Squealer is a fictional character, a pig, in George Orwell's 1945 novel Animal Farm.He serves as second-in-command to Napoleon and is the farm's minister of propaganda.He is described in the book as an effective and very convincing orator and a fat porker.
Snowball is a character in George Orwell's 1945 novella Animal Farm.He is largely based on Leon Trotsky, who led the opposition against Joseph Stalin ().Snowball is depicted as an intellectual white pig whose leadership, dedication, and feats for Animal Farm is unparallel to any others on the farm, however he is rivaled by Napoleon who has hatred for Snowball.
Benjamin is a donkey in George Orwell's 1945 novel Animal Farm. [1] He is also the oldest of all the animals (he is alive in the last scene of the novel). He is less straightforward than most characters in the novel, and a number of interpretations have been put forward to which social class he represents as regards to the Russian Revolution ...
Two types of radius gauges. A radius gauge, also known as a fillet gauge, [1] is a tool used to measure the radius of an object. [2]Radius gauges require a bright light behind the object to be measured.