Washington DC (UPI) Nov 22, 2023
![](https://www.spxdaily.com/images-bg/robot-eth-zurich-autonomous-excavator-constructed-wall-bg.jpg)
An autonomous excavator developed by researchers at the Federal Institute of Technology (ETH) in Zurich, Switzerland, has successfully constructed 19.6-foot-tall and 130-foot-long wall.
The excavator, named HEAP, scans rocks to determine their size, shape and center of gravity. An algorithm then determines the best location to place each rock.
"Using sensors, the excavator can au