chapter 15 Flashcards
Ocean Technologies
on a deep dive, a diver must use what
trimix
mixed gas
trimix
list three submersibles
UUV, ROV, AUV
what is used to measure the light received from a light source of known brightness after it passes through the water
electronic photocells
what helps protect a diver from unexpected things that can happen underwater
buddy system
scientists who work to better understand and use the ocean
oceanographers
form of artificial echolocation
sonar
what are the three gases in trimix?
helium, hydrogen, and oxygen
first scuba had what breathing regulator?
aerophore
what did Pietro Secchi invent
secchi disk
most important thing a human needs underwater
air
to determine the depth of a body of water by sinking a lead wright on a rope or cable
sounding
large bell-shaped enclosures; used to do work on the seabed
diving bells
bottom dwelling animals
benthic
a rugged, simple steel cylinder, open at both ends with spring-loaded stoppers
Nansen bottle
first practical underwater breathing apparatus
scuba
undersea robot
ROV
perfected the modern scuba system by using this regulator
automatic demand regulator
navigators used what to take a sounding for determining water depth
lead lines
describe the bathysphere
steel ball, thick, 3 windows
first deep-water manned submersible
Bathysphere
list three things that an underwater habitat would need
- protect the occupants from cold + water
- provide a reliable supply of air, heat, power, + light
- store fresh water + food, and allow 4 the preparation + eating of meals
list two things that an underwater would need
- have space + facilities 4 ppl to carry out normal daily activities such as working, sleeping, + personal hygiene
- provide access to and from the ocean
