The reason submarines are able to do this is thanks to some very important components known as the ballast and trim tanks. These are located throughout the sub at the bow and stern as well as on ...

Find 403 Ballasts suppliers with GlobalSpec. Our catalog includes 105,713 manufacturers, 20,974 distributors and 94,434 service providers. The GlobalSpec database includes 62,214 manufacturers and ...

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Twin XL mattresses are found inside almost every college dorm room, but there’s a lot more to this mattress size than that. While the best twin XL mattress provides ample room for growing kids ...

Several factors can affect the cost to replace a pool liner, including your pool’s shape and size, as well as the liner’s design, thickness and material. Learn all about pool liner replacement ...

While roof replacement is a major expense for most homeowners, settling for a cut-rate installation could lead to trouble down the road. Maciek Rupar, technical services director of the National ...

Can you do that? I'm an orthopedic surgeon and we've just completed a total knee replacement for a patient with severe osteoarthritis of the knee. Let me walk you through the process. On the ...

Welcome to the operating room. I'm Dr. John Henry. I'm an orthopedic surgeon and we're about to perform a total hip replacement for a patient with severe osteoarthritis of the hip. Total joint ...