Lesson plan
Durability
on the Isle of Man still operates with its original tramcars and trailers, all of which are over one hundred years old, the latest dating from 1906. Durability is the ability of a physical product to remain functional, without requiring excessive maintenance or repair, when faced with the challenges of normal operation over its design lifetime. There are several measures of durability in use, including years of life, hours of use, and number of operational cycles. In economics, goods with a long usable life are referred to as durable goods. Because there is no objective measure of durability for clothing, price has become an important indicator.
Article summary
on the Isle of Man still operates with its original tramcars and trailers, all of which are over one hundred years old, the latest dating from 1906. Durability is the ability of a physical product to remain functional, without requiring excessive maintenance or repair, when faced with the challenges of normal operation over its design lifetime. There are several measures of durability in use, including years of life, hours of use, and number of operational cycles. In economics, goods with a long usable life are referred to as durable goods. Because there is no objective measure of durability for clothing, price has become an important indicator.
Key claims
No claims recorded.
Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.