Demolition from inside
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A company in Japan has come up with a new way of demolishing high-rise buildings in densely built-up areas, as an alternative to using wrecking balls or explosives.
With this method they even generate electricity for tools they use!
Japan's incredible shrinking building - YouTube
[flash=576,324:1icd4084]http://www.youtube.com/v/rlsMWEZ6qlI[/flash:1icd4084]
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I wonder how the costs of deconstruction compare to the construction costs. There's maybe one advantage: it's easier to reuse or recycle materials than when turning it into a pile of debris.
Like with nuclear powerplants, proper deconstruction often hasn't been considered in the planning and the costs (and time) for nuclear powerplants easily exceed those of construction.
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