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The Nine-Colour Cube (see below for other names) is a cubic twisty puzzle. [1] It was invented in 2005 by Milan Vodicka [2] and mass-produced by Meffert's seven years later. [3] [4] Mechanically, the puzzle is identical to the Rubik's Cube; however, unlike the 3×3×3 Rubik's Cube, which only has 6 different colours, the Nine-Colour Cube has 9 colours, with the individual pieces having one ...
Some color variation can be observed between types, caused by differences in the gas mixtures used. Longer-life tubes that were manufactured later in the Nixie timeline have mercury added to reduce sputtering [4] resulting in a blue or purple tinge to the emitted light. In some cases, these colors are filtered out by a red or orange filter ...
Initially, the limited color depth of most video hardware led to a limited color palette of 216 RGB colors, defined by the Netscape Color Cube. The web-safe color palette consists of the 216 (6 3 ) combinations of red, green, and blue where each color can take one of six values (in hexadecimal ): #00, #33, #66, #99, #CC or #FF (based on the 0 ...
The rg chromaticity space is used in computer vision applications, and shows the color of light (red, yellow, green, etc.), but not its intensity (dark, bright). LMS color space (long, medium, short), a perceptual color space based on the response functions of the cones in the retina of the eye.
39 – Remote-cutoff pentode, UX5 based (Commonly branded as 39/44). 41 – Power pentode, Early UX6 based version of octal type 6K6G, and Loctal type 7B5. 42 – Power pentode, Early UX6 based version of octal type 6F6G, Except for heater, similar to types 2A5 and 18. 44 – Similar to type 39, see type 39 above.
More-subtle filters are needed to correct for the difference between, say 3200 K and 3400 K tungsten lamps or to correct for the slightly blue cast of some flash tubes, which may be 6000 K. [21] If there is more than one light source with varied color temperatures, one way to balance the color is to use daylight film and place color-correcting ...
Even though larger screen sizes with short tube lengths were available, there was a revival of interest in rear projection systems to achieve picture sizes that were beyond the capabilities of direct view cathode ray tubes of the time. Modern color rear-projection television had become commercially available in the 1970s, [15] [16] [17] but at ...
VacAttack Cordless Leaf Vacuum. This cordless leaf vacuum runs on a 5.0 AH (which stands for amp-hours) battery, which means this thing can employ five amps of current for one hour.
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