The launcher sends a probe into the water to measure depth and temperature variation below the ship. There is a copper wire attached to both the launcher and the probe. When the probe is released, the wire unwinds from a spool as it descends. During this descent, the probe sends temperature data back to the launcher by means of an electrical signal through the wire. The launcher itself is connected to a computer that assigns each temperature value to a certain depth. The depth point is calculated using a predetermined rate at which the probe falls. The speed of sound through seawater is an essential factor that must be measured to accurately determine ocean depth and map the seafloor. This measurement is being taken during a scientific expedition to map the Arctic seafloor.
The rapid speed of cAMP production
Arctic fox at Svalbard, Norway.
The path of sound waves through the outer, middle, and inner ear.
Response to Sound Waves
Arctic sea ice in 2012
A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ...