the.com/excavator
a dinosaur-shaped machine that eats the earth and politely reshapes the planet
means A heavy construction machine with a boom, arm, and bucket used to dig, lift, and move soil and rubble — or, more broadly, a person who digs things up, including archaeologists.
from From Latin excavare, "to hollow out," built from ex- ("out") plus cavare ("to hollow"), itself from cavus, "hollow" — the same root that gives us cave and cavity. So the word literally means "to make hollow by taking out," which is exactly what the machine does to the ground. The mechanical sense is a relatively modern extension, arriving once we built engines mighty enough to do what hands and shovels once did.
- force
- Bucket teeth exert tons per square inch of pressure
- swing
- Cab rotates full 360 degrees on its base
- giants
- Largest models weigh over 1,000 metric tons
- hands
- Swappable attachments grip, drill, crush, and shear
- control
- Joysticks move all motions through hydraulic fluid
caterpillar 390f — largest hydraulic excavator by bucket capacity, 6.9 cubic meters, used in mining worldwide
komatsu pc8000 — massive electric rope shovel excavator, 218 metric tons, operates in australian coal mines
liebherr r 9200 — one of world's largest mining excavators, 218 tons bucket capacity, used since 2000s in open-pit mines