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a bucket wheel excavator is 200 to 350 metres tall
The largest bucket-wheel excavator in the world, the Bagger 288, has a song about it.
See Related link.
The way any other excavators does it's the same
Badger 228
Yes, "The Throwback" is the novel where the Bucket-Wheel Excavator gang appears. It was written by Tom Sharpe and published in 1978.