Maybe she had a visit from some ghosts?

Best pencil i have used

Are there other gasses that could be used. E.g some of the noble gasses like argon or neon?

Would guess they are trying to puncture whatever keeps the pontoons afloat. I know nothing about the bridge pontoons though, but seen plenty of helicopters with lots of holes in them

Metals are made of crystals, they usually defourm along the grain boundaries and fatigue cracks also grow along them. By eliminating those boundaries you reduce the chance for fatigue cracks and make the overall blade stronger.

That is a very odd failure so not 100% sure. If I had to take a punt I would say the nozzle jammed from the mentioned heat creap issue, eventually the silk pla broke in the extruder as it’s very brittle, combined with retractions. It then was then able to work its way out and make some noodles for you to enjoy.

Polish friend of mine says Radom and Kielce are a bit of a shit hole.

Good human

The bunker busting part is almost too effective, going straight through the thing you want to blow up and then exploding further away