LADDER III Cruise | Questions

This page will have two sections:

1) Questions sent via e-mail. I can't guarantee to provide the answer to every question, but I can provide answers to the best of my knowledge (along with asking around on the ship).

2) Some questions (and answers) from Ben Walther and Carly Strasser's "Atlantis Jeopardy."

Questions
This page will have two sections: 1) Questions sent via e-mail. I can't guarantee to provide the answer to every question, but I can provide answers to the best of my knowledge (along with asking around on the ship). 2) Some questions (and answers) from Ben Walther and Carly Strasser's "Atlantis Jeopardy."
Questions sent via e-mail
1) How does the sub communicate with the Atlantis? Answer: An underwater phone. 2) How cold does the interior of the Alvin get and what is the outside temperature? Is the cabin well-insulated from the water? How is it insulated? Answer: 2 degrees C. The interior gets as cold as 13 degrees C (8 hours on the bottom). It is not well-insulated. The cabin is essentially a titanium sphere. There is some padding on the sides and floor, but that's about it. 3) How is Alvin powered? How long do the batteries last and how are they recharged? Answer: Battery powered. The batteries usually last around 6 hours on the bottom (depending on the amount of electronics being used) are recharged after every dive by the ship's power supply. 4) How does an underwater phone work? Answer: Very much like a radio. An FM carrier frequency is sent out from a transmitter, the Alvin group uses ~8 KHz, overlaid with acoustic waves. The receiver recognizes the carrier wave, basically "subtracts" it, and you're left with the acoustic waves from the person on the transmitter end.
Questions taken from... Atlantis Jeopardy!
Ship	Science
1) What is the agency that owns the Atlantis? Answer 2) The event that results in this alarm: 7 short blasts, 1 long blast. Answer 3) What does SSSG stands for? Answer 4) Translate to nautical terminology: -Bathroom -Floor -Rope -Room Answers 5) What are the two classes of seaman? Answers 6) What is the difference between bearing and heading? Answer 7) What was the year of the first voyage of the Atlantis? Answer	1) What does CTD stand for? Answer 2) What is the depth of the ridge trough of the EPR? Answer 3) What was the year of the first hydrothermal vent discovery? Answer 4) What’s the depth rating of Alvin? Answer 5) What is the type of (new) rock covering the EPR? Answer 6) Name at least two other places where hydrothermal vents are found. Answers 7) Name three types of animals found at hydrothermal vents. Answers 8) What is meiofauna? Answer
Atlantis Jeopardy Answers
1)The Office of Naval Research 2) Abandon Ship 3) Shipboard Scientific Services Group 4) Bathroom = Head Floor = Deck Rope = Line Room = Cabin/stateroom/berth 5) Able-bodied & Ordinary 6) Heading: direction the ship points Bearing: reference direction 7) 1997	1) Conductivity, Temperature, Depth 2) 2500 meters 3) 1977 4) 4500 meters 5) Basalt 6) Galapagos Spreading Center, Juan de Fuca Ridge, Mid-Atlantic Ridge, North East Pacific ridge System, Marianas back-arc spreading center, Manus, North Fiji and Lau Basins, Central Indian Ridge, Antarctic Ridge (there are even more) 7) tubeworms (Riftia, Tevnia, etc.), limpets, snails, crabs, polychaete worms (i.e. paralvinella), vent fish, galatheids (squat lobsters), vent shrimp, vent barnacles, scale worms, etc. 8) Usually protists such as foraminiferans.