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From left to right: a field with a source, a field with a sink, a field without either. In the physical sciences, engineering and mathematics, sources and sinks is an analogy used to describe properties of vector fields. It generalizes the idea of fluid sources and sinks (like the faucet and drain of a bathtub) across different scientific ...
Older structures may use asbestos, copper, iron, lead or clay pipes, in rough order of era of use. Under many older building codes, a vent stack (a pipe leading to the main roof vent) is required to be within approx. a 5-foot (1.5 m) radius of the draining fixture it serves (sink, toilet, shower stall, etc.). [ 2 ]
August "Gus" William Hutaf (1874–1942) was an illustrator, commercial artist, and advertising executive during the 1900s. His most recognized work is the 1917 World War I recruiting poster for the Tank Corps titled, "Treat 'Em Rough!
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Water for baths, sinks and basins can be provided by separate hot and cold taps; this arrangement is common in older installations, particularly in public washrooms/lavatories and utility rooms/laundries. In kitchens and bathrooms, mixer taps are commonly used. In this case, hot and cold water from the two valves is mixed before reaching the ...
Rich pictures should concentrate on both the structure and the processes of a given situation. Rich pictures are a part of the understanding process, not just a way of recording what you know of a given situation or creating a work of art. The use of metaphor in rich pictures means that their interpretation by others can often be difficult ...