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Is the first number the width on a floor register?
Yes - in the US we use an industry standard called the modular system which places all dimensions of building products in the same order - width, height, depth.
What year did diamonds first have serials numbers?
Probably within the last 30-40 years, since they are inscribed by lasers. Initial documentation about using lasers in the diamond industry is dated in the early 1980s.
What is the Gutenberg Bible?
The Gutenberg Bible is the first major book printed in Europe using movable type. It was printed by Johannes Gutenberg in 1455 and is known for revolutionizing the printing industry. The Gutenberg Bible is highly regarded for its craftsmanship and historical significance.
Who developed the first punch card system in 1887?
Herman Hollerith received the patent for the mechanical punch card system in 1887. He developed it for use with tabulating machines. However, the manual punch card system originated in 1725, created by Basile Bouchon for producing cloth patterns.
What is 10 plus 9 x 109?
Your question has been specified without parentheses. 10+9*109=991. This is because multiplication occurs first, and addition occurs last before the result may be displayed. This is your question specified by parentheses. (10+9)*109=2071. Using the distributive property, you can multiply 109 with 10 and 9, producing 1090+981. This sums up to 2071. You may also add the inner numbers (adding to 19), and multiply 109 with it, producing 2071.
