The National Electrical Code ( NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the United States. It is part of the National Fire Codes series published by the National Fire Protection Association (NFPA), a private trade association."National Electrical Code" and "NEC" are registered trademarks of the NFPA. Despite the use of the term "national", it is not a federal law. It is typically adopted by states and municipalities in an effort t..
Arthur Casagrande (August 28, 1902 – September 6, 1981) was an Austrian-born American civil engineer who made important contributions to the fields of engineering geology and geotechnical engineering during its infancy. Renowned for his ingenious designs of soil testing apparatus and fundamental research on and soil liquefaction, he is also credited for developing the soil mechanics teaching programme at Harvard University during the early 1930s that has since been modelled in many universities around th..
A coupling (or a coupler) is a mechanism for connecting rolling stock in a train. The design of the coupler is standard, and is almost as important as the track gauge, since flexibility and convenience are maximised if all rolling stock can be coupled together.
Marwari ( Mārwāṛī मारवाड़ी; also rendered Marvari, Marwadi, Marvadi), is spoken in the Indian state of Rajasthan. Marwari is also found in the neighboring state of Gujarat and Haryana and in Eastern Pakistan. With some 13.2 million speakers (as of 1997, ca.), it is the largest language by number of speakers of the Marwari subgroup of the Rajasthani language. There are 13 million speakers in Rajasthan and rest 200,000 in Eastern Pakistan. There about 23 dialects of the Marwari Langu..
