Found a free geology course that explains rock formations way better than my college textbook

I was trying to understand how hoodoos form for a camping trip in Utah and stumbled on this open course from a professor in Arizona. The animations alone made it click after 3 chapters of nothing. Anyone know where to find more courses like that with good visuals?

Warning: I just realized my panel grounds were all wrong for 4 years

I was in a crawlspace in Austin last Tuesday swapping out an old DSC panel. Got curious and checked the ground resistance on a whim. 45 ohms. That panel had been reading fine on the keypad for 4 years. I checked two more jobs from that era. Same story. Turns out I was just driving a ground rod and hoping for the best. Never actually tested with a clamp meter. The false security alarms were probably from bad grounding the whole time. Anyone else skip testing grounds and regret it later?

My landlord's old putty knife saved my drywall patch last weekend

Saw a guy at the co-op yesterday greasing his brake pads thinking it'd stop his squeal

He said his buddy told him to do it, and I had to stop him before he ended up needing new rotors too, has anyone else run into this kind of bad advice at a community shop?

Just caught a student using an AI shortcut for history essays and I'm rethinking my whole approach

I found out my 10th grader used ChatGPT to write a paper on the Civil War last week, so I sat him down and showed him how to use it as a research assistant instead. Has anyone else had luck turning these tools into learning aids rather than banning them outright?

That $3 hostel in Belgrade taught me a hard lesson about bed bugs after I woke up with bites on my arms

I realized I was always picking the absolute cheapest place without checking recent reviews for bug reports, and now I always filter for hostels rated 8.5 or higher even if it costs a few bucks more, has anyone else had a similar issue with bargain accommodations ruining a trip?

Wasted $80 on a fancy bottom bracket tool I never needed

I bought a Park Tool BBT-32 for my Shimano cranks because I thought I needed the special socket. Turns out a generic 8mm hex key and a plastic mallet would have done the same job for free. Has anyone else bought a niche tool they found out later was completely unnecessary?

Switched from cable lube to drip wax 8 months ago, drivetrain stays clean forever now

Was cleaning chains every 2 weeks with wet lube. Grimy mess always. Buddy at the shop in Portland told me to try Squirt wax. First month was rough, had to reapply every 80 miles. Now at 200 miles between applications. Cassette looks brand new still. No more black gunk on my hands. Anyone else make the swap and never look back?

Hit 50 solved tickets last month and it surprised me how much it mattered

I always figured ticket count was just a number to hit for management, but when I saw 50 solved on my dashboard in December it actually felt good. Seeing that many people helped in a month made me realize I’m making a real difference, not just fixing computers. Has anyone else hit a milestone that changed how you see your work?

Question about torque wrench calibration - I had it backwards

Been a mechanic for about 8 years and always thought you set the wrench to the lowest setting when storing it. Just last month I had a calibration check fail hard on a torque wrench I used for flight control bolts. The tech told me I should have stored it at mid-range, not zeroed out. Now my whole preflight tool check routine feels off. How often do you guys actually send yours out for calibration?