پهپادها پس از سیل نپال به یافتن افراد کمک کردند، اما جستجو در داخل تونل های برق آبی یک چالش است.

Drones helped find people after Nepal floods but the search inside hydropower tunnels is a challenge

KATHMANDU, Nepal (AP) — Drone pilot Manish Maharjan has helped rescue teams in Nepal find people missing after last week’s catastrophic floods, sometimes using speakers mounted on the devices to call out to or play music for those stranded on hillsides. But the search for hundreds of workers believed to be trapped in power plant tunnels — now […]