BBCNEWS Click January 5, 2022 01:41:00
Subterranean drone and were using it specifically to help the grain storage operators maintain the quality of their stock. you called it a drone, but it doesnt look much like a drone. thats right. since there wasnt a word in the dictionary to describe what it is, we have come up with one. we call it a "crover". how does it work and what does it do exactly? it swims through grain in storage, like in silos and sheds, monitoring the conditions of the grain, like temperature and moisture, and helpin...
Source: archive.org