As someone recovering from back pain from a car accident, back pain (or tightness) often just means there's a weakness somewhere, probably at or anywhere below that location (could be tight hips, even ankles).
It's finding that weakness that can sometimes be the hard part, but deadlifts use the whole damn back so they're great to cover that area.
That being said, the body loves to try and compensate, so I didn't find proper relief with home workouts (and often just aggravated things), I needed all the gym machines to properly isolate muscles so my body wouldn't try and cheat. Trying random machines is also a great way to identify weaknesses.
Commercial drones like this typically come with enough batteries to run non-stop.
Even at the standard 1C charge rate, you'd only need 4 batteries to effectively fly non-stop.
In the article they mention the system was meant for rough terrain where they were hand-spraying because the tractor couldn't get there, but I guess they're working on making it viable for large flat farms now.
It's finding that weakness that can sometimes be the hard part, but deadlifts use the whole damn back so they're great to cover that area.
That being said, the body loves to try and compensate, so I didn't find proper relief with home workouts (and often just aggravated things), I needed all the gym machines to properly isolate muscles so my body wouldn't try and cheat. Trying random machines is also a great way to identify weaknesses.