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They were easy to manufacture, but not durable. Similar shoes have also been made of strips of birchbark in more northern areas where bast is not readily available. Bast shoes have been worn since prehistoric times. Wooden foot-shaped blocks (lasts) for shaping them have been found in neolithic excavations, e.g. 4900 years old. [1]
Durable goods (e.g., automobiles, heavy machinery, mainframe computers, musical instruments, handguns, water heaters, furnaces) are designed with wear parts that are maintained generally by replacement of parts. One way to determine if a good is durable or not is whether a service technician or repairman would
A car is a durable good. The gasoline that powers it is a non-durable (or consumable) good.. In economics, a durable good or a hard good or consumer durable is a good that does not quickly wear out or, more specifically, one that yields utility over time rather than being completely consumed in one use.
Product durability is predicated by good repairability and regenerability in conjunction with maintenance. [3] Every durable product must be capable of adapting to technical, technological and design developments. [3]
The change in utility (pleasure or satisfaction) gained by consuming one unit of a good is called its marginal utility.Goods are commonly considered to have diminishing marginal utility, which means that consuming more gives less utility per amount consumed. [5]
Can reach 70 m (230 ft) in height. The foliage has a distinct orange-like scent. The wood is soft, and not as durable as in other fir species. Uses: timber; landscaping, pulpwood, veneers, winter holiday decorations. [14] [15] BC
Toughness is related to the area under the stress–strain curve.In order to be tough, a material must be both strong and ductile. For example, brittle materials (like ceramics) that are strong but with limited ductility are not tough; conversely, very ductile materials with low strengths are also not tough.
Although not as durable as cotton or hemp fabrics, soy clothing has a soft, elastic feel. [128] Soy clothing is known as vegetable cashmere for its light and silky sensation. [128] Soy fabrics are moisture-absorbent, antibacterial and UV-resistant. [128]