swarm of drones
 

Watch a swarm of drones fly through heavy forest?while staying in formation

https://www.youtube.com/watch?v=IujQ...ature=emb_logo

https://www.sciencemag.org/news/2020...ying-formation

https://arxiv.org/abs/2011.04183

from 2010 Im looking to find a real long range locator but I went the wrong way , because there were so many counterfeit systems that it disappoints everyone
but now I know what to look for
for me a drone is a real LRL !
to find metals (gold) / tunnels / rooms, etc., you can use different sensors : magnetometer/thermal/radar/electromagnetic/VLF/metal detector ...