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Lettris is a curious tetris-clone game where all the bricks have the same square shape but different content. Each square carries a letter. To make squares disappear and save space for other squares you have to assemble English words (left, right, up, down) from the falling squares.
Boggle gives you 3 minutes to find as many words (3 letters or more) as you can in a grid of 16 letters. You can also try the grid of 16 letters. Letters must be adjacent and longer words score better. See if you can get into the grid Hall of Fame !
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|School bus yellow|
— Color coordinates —
|RGBB||(r, g, b)||(255, 216, 0)|
|HSV||(h, s, v)||(36°, 100%, 50%)|
|B: Normalized to [0–255] (byte)
School bus yellow is a color which was especially formulated for use on School buses in North America in 1939. The color is now officially known in Canada and the U.S. as National School Bus Glossy Yellow and was originally called National School Bus Chrome. The pigment used for this color was, for a long time, the lead-containing chrome yellow.
In April of 1939, Dr. Frank W. Cyr, a professor at Teachers College, Columbia University in New York organized a conference that established national school-bus construction standards for the U.S., including the standard color of yellow for the school bus. It became known officially as "National School Bus Chrome." The color was selected because black lettering on that hue was easiest to see in the semi-darkness of early morning.
The conference met for seven days and the attendees created a total of 44 standards, including specifications regarding body length, ceiling height and aisle width. Paint experts from DuPont and Pittsburgh Paints participated. Dr. Cyr's conference, funded by a $5,000 grant from the Rockefeller Foundation, was also a landmark event inasmuch as it included transportation officials from each of the then-48 states, as well as specialists from schoolbus manufacturing and paint companies. The color was adopted by the National Bureau of Standards (Now the National Institute of Standards and Technology) as Federal Standard No. 595a, Color 13432.
The conference approach to school bus safety, as well as the yellow color, have endured into the 21st century. Dr. Cyr became known as the "Father of the Yellow School Bus."
The yellow color of other public vehicles, including taxicabs, did not derive from Dr. Cyr's standardization. Rather, it was from a much earlier choice made by Chicago-based entrepreneur John D. Hertz, who founded the Yellow Cab Company in 1914, and used the color to brand his business. Hertz's later car rental company would also use the bright yellow shade as part of its logo, which is still in use today. It is not known whether or to what extent Hertz's choice influenced Dr. Cyr's conception, or whether Hertz himself had the same concerns about visibility in mind that Dr. Cyr had.
The yellow used on Beijing and Hong Kong "breadloaf" or "miandi" taxis shown in the photo below, was likely influenced by yellow taxicabs in the US.
North American-style yellow school buses (built by European manufacturers) are being introduced in some parts of the United Kingdom, prompted by corporate links to the American industry, for example First Student UK, or a desire to re-brand school buses, such as West Yorkshire Metro's Mybus.
School bus yellow is also the traditional color of long-distance coaches and intercity buses used in Hungary.
A First Student UK school bus painted in American school bus yellow
A Hong Kong nanny van in yellow (but see note above about Hertz and taxicabs)
|Amber||Apricot||Beige||Buff||Cream||Dark goldenrod||Ecru||Gold||Gold (metallic)||Goldenrod|
|Green-yellow||Jasmine||Jonquil||Khaki||Lemon chiffon||Lime||Lion||Maize||Mikado yellow||Naples yellow|
|Navajo white||Olive||Papaya whip||Saffron||School bus yellow||Selective yellow||Stil de grain yellow||Sunglow||Vanilla||Light Yellow|
|The samples shown above are only indicative.|