Human Powered Submarine at Virginia Tech
Human Powered Submarine at Virginia Tech (HPS) is a student-run team that designs, builds, tests, and races a fully flooded human-powered submarine.
Wish you could shoot shipwreck photos good enough to grace the pages of a dive magazine? Photo journalist Jason Brown reveals his ‘go to’ tricks to help you shoot better wreck photos.
A diver’s decompression requirements depend solely upon the time, depth and level of oxygen over the course of the dive regardless of the fraction of helium and or nitrogen used in the breathing mix. The so-called “helium penalty, does not exist.