/sci/ - Science & Math

Nothing too serious. Once I was running the overburden porosimeter (similar to pic related but about 5 times bigger) and it has 2 pressure gauges on it, one to 2,000 PSI and the other to 10,000 for samples that need higher pressures.

The dial to switch from one pressure guage to the other is right beside the dial to wind down the pressure. I accidently grabbed the wrong one, with about 8,000 PSI in the chamber, and switched it from the 10,000 to the 2,000 gauge.

It sounded like a train whistle for a moment and the smaller gauge stopped moving. Cost about $500 to replace.