Keith Cooper is a freelance science journalist and editor in the United Kingdom, and has a degree in physics and astrophysics from the University of Manchester.
Jam packed issues filled with the latest cutting-edge research, technology and theories delivered in an entertaining and visually stunning way, aiming to educate and inspire readers of all agesAn autonomous excavator at work in Circularity Park, on the campus of the company Eberhard AG in the Swiss municipality of Oberglatt.An autonomous, robotic hydraulic excavator could build a dry stone wall to act as a blast shield around a launch pad on the moon, propose a team of Swiss researchers.
However, the advantages, argue Walther and his team, greatly exceed those of other construction techniques. For one thing, a dry stone wall using boulders plucked from the lunar surface does not require the energy-intensive material-processing methods that other techniques might employ, such as heating to cement the material in place. Plus, Walther points out, dry stone walls, as primitive as they sound, can have remarkable longevity.
The excavator has to roll out and find all this material on the moon itself.
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