Product Description
Video and lesson investigations on the topic of testing. Key concepts include:
- Sometimes, doing a full-scale test is the only way to see if a structure is strong enough.
- Some tests need to take account of extreme, but possible, circumstances.
- Testing to destruction reveals the strength limits of a design structure and the materials used.
- Full-scale testing is important where potential risk to life is involved.
- Full-scale tests are not always possible. For example, full-scale testing the strength of buildings in an earthquake-prone area cannot be done, neither can real bridges be tested to destruction.
- In this case, models are tested and engineers rely on carefully worked out calculations to ensure safety.
- Often such structures are built extra strong, enough to withstand twice the amount of stress that can reasonable be expected.
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