I missed my oscilloscope.

Best 100$ i spend

I'm on vacation in Agadir Morocco, and while on a walk, I've noticed what seems to be power lines, and much more smaller ones hanged on them. Anyone knows what s this for? Or maybe I'm delusional and those are not powr lines at all?

I've spent a few days doing a family reunion we haven't done for around 10 years. And I knew that part of the family already believed some strange (wrong) things, but here's just a few that came up in 2 days.

1. Microwave oven radiation is dangerous. Not just from consuming the food, but also from being in the room. Someone in the house started microwave some soup and one of them ran up, stopped it, and boiled it. Said you'd have to be over 50 feet away from a microwave to not be affected. I could understand a faulty, defective, old, dirty microwave, but this one was in great condition.

2. They turn off wifi at night so that you're reducing your exposure to dangerous signals.

3. (Not electrical in nature) Evolution isn't mathematically possible. You can probably guess what else they believe but I'll stop here. Its the only other really crazy thing that actually came up, so I'm proud of the family to avoid the other elephants for the sake of the kids. We were talking about the color brown and how its really a shade of orange that our brains process into brown. Mentioned rods, cones, etc... then mentioned some stuff about what animals see versus what we see and how natural animal camouflage works really well from the perspective of the prey. Anyway, cleared that mistake by going back to brown on the EM spectrum isn't there.

So since yesterday, all I've been thinking about is, like, what about HDTV broadcast, FM, AM radio signals being blasted into our homes from dozens of towers in the area? What about the 60hz voltage induced on the body from live voltage in the house power cables? I had specifically remembered that video (linked below). Are they going to start flipping the breaker at night too? And that video referenced his other videos to 5g and microwave radiation. I never even think about 5g, but i remember when it rolled out there was the same bs.
Anyway, I'm glad i rewatched this video because it has restored some of my sanity. I'm not an electrical engineer or electrician, but took many circuits and mechatronics classes, so i understand most of what mehdi says at a surface level to know he's right and proving it with good methods.
Vent over.

https://www.youtube.com/watch?v=NQE6uNrSd-4

Are reversible earthed plugs dangerous when plugged the other way around?

Its kind of rc circut but i mean why triange wave instead of sine wave?