Is there a commercially available adhesive for plastics that is resistant to concentrated acids?

I want to glue a piece of soft PVC hose into a hard PVC part (or into a hole drilled into it, unfortunately a hose nozzle is not possible for my project), so I would need an adhesive or sealing material that adheres well to both the soft and hard material and is resistant to…

Can humans dive hundreds or thousands of meters into the ocean depths?

Can humans dive hundreds or thousands of meters into the ocean as divers? For example: The wreck of SMS Scharnhorst, a battleship, flagship and large cruiser of the German Imperial Navy from the First World War lies at a depth of 1610 meters. The Titanic lies at a depth of 3,803 meters. There, the water…

TITAN Boat: Are people without professional background knowledge even capable of realistically estimating a depth of over 3,000 m?

This trip to the Titanic at a depth of 3,400 m sounds very daring in itself. Despite all the information, do these tourists completely underestimate the water pressure, temperatures and the impossibility of "just surfacing"?