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A hydrophone may not be the right answer as it will be picking up too much background noise. I am looking for something that is applied similar to a doctor's stethoscope. Any ideas?

Thank you for the comments. This is a good starting point. Time to start making phone calls.

Thank you for the comments. This is a good starting point. Time to start making phone calls.

The diver wears a hat. He will not be able to hear that. Also note that if visibility is poor, they will not be able to see well, or at all.

I work for an offshore construction company and would like to take a new safety measure in one of our common practices. Below is a brief description of the practice. I am not looking to invent/patent anything, I am looking for an already made product. Currently, when laying pipelines...

Thanks Desertfox. I will check them out

Thanks for the input, cntw. I have sent an email to their support group. I will let you know the response. Does anyone else use this program? I just downloaded it yesterday as a coworker pointed me in the direction. I have let him know of the issue I have, but have not heard a response.

Good morning and Merry Christmas. My question is in regards to buckling in columns. I started using the Engineering Power Tools download to check my calculations. I have run into two challenges I hope you can help me with. 1. I get a different critical load when using Johnsons formula. I...

Ah, section 2. Thanks!

Good morning. Can you provide me with or point me in the right direction for the chemical composition of SA 350 lf2? I cannot find anything in ASME Section IX. Thanks