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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 .
A snow globe with a figurine of Santa Claus Video of a snow globe. Motive: Vienna. A snow globe (also called a waterglobe, snowstorm, [1] or snowdome) is a transparent sphere, traditionally made of glass, enclosing a miniaturized scene of some sort, often together with a model of a town, neighborhood, landscape or figure. The sphere also ...
During the Early Northern Renaissance and even more during Dutch Golden Age painting in the 17th century, interest in landscape painting was increasing. The winter of 1564–1565 was said to be the longest and most severe for more than a hundred years – the beginning of a cold period in northern Europe now called the Little Ice Age.
Eventually, that email led to my bf and I boarding a plane from JFK to Salt Lake City a few weeks before Christmas (checked bags stuffed with snow pants and ski goggles, obvi), where we were then ...
Another snow sensor called a snow pillow looks like a round bag lying on the ground. Inside the pillow is a liquid such as an environmentally safe [citation needed] antifreeze. Usually the snow pillow will be connected to a manometer. The manometer reading will vary based on how much snow is sitting on the pillow.
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a celestial globe.
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.
Isometric graph paper can be placed under a normal piece of drawing paper to help achieve the effect without calculation. In a similar way, an isometric view can be obtained in a 3D scene. Starting with the camera aligned parallel to the floor and aligned to the coordinate axes, it is first rotated horizontally (around the vertical axis) by ± ...