The bulldozer revolution is associated with the region of Eastern Europe. It occurred in October and November 1989 in what is now Slovakia. The revolution marked the beginning of the end of communist rule in Eastern Europe.
The term "cat skinner" for a bulldozer operator originated from the early days of construction when bulldozers were sometimes referred to as "caterpillar tractors" or just "cats." The operator responsible for controlling the bulldozer was called a "skinner," likely because they had to skillfully maneuver the machine through rough terrain. Over time, the term "cat skinner" became synonymous with bulldozer operators.
No, a bulldozer would not be able to push a Moai statue on Easter Island due to the immense size and weight of the statues. The Moai are large and heavy stone statues that can weigh several tons, making them impossible for a bulldozer to move. Specialized equipment and careful handling would be required to relocate a Moai.
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Depending on model and attachments, 450 series dozers run 14,000 to 15,000 lbs. or 7 to 7 1/2 tons.
It means that there is pain inside us and we are letting it out.
A bulldozer won't be able to straight push a weight of soil, gravel, rocks, etc, too much heavier than the machine, without losing track traction. Such heavy loads would be pushed a smaller load at a time to prevent blowing the engine, or snapping the caterpillar-tracks.
Cat dozers are large bulldozers. An example is the Caterpillar D11. They are used for moving large quantities of material, like dirt, rock and aggregate.
To learn to drive a bulldozer depends on the person and the bulldozer. A person may learn to drive it quickly given the right instruction, or it may take longer if the person isn't familiar with driving them.