1. Marine communication technology BY: JOSHUA DENOBREGA

2. Depth detector A depth detector uses sonar to check the depth of the area you are in

3. Robotic arms A robotic arm is a type of mechanical arm, usually programmable, with similar functions to a human arm, the arm may be the sum total of the mechanism or may be part of a more complex robot robot arm info

4. Underwater camera technologies Some cameras are made for use underwater, including modern waterproof digital cameras. Underwater cameras are protected by special housing that are made for various digital point and shoot cameras. underwater camera info

5. History of the mermaid a)They were seen around the first 500m in places like eastern Europe, China, Africa, and others b)Their tails help them swim in the oceans especially in ruff weather. Their arms help them gather food c)Certain personality's depend, siren is an order of fully aquatic, herbivorous mammals there are serval different types of personality's d) There not real mermaid info

6. What is an ROV and what does it do?  A remotely operated underwater vehicle.  Tethered to a boat above water.  ROV stands for “Remotely Operated Vehicle”. (Meaning unoccupied)  Used for deep diving, extracting materials in deep water, maneuvering in sunken vessels, etc. Reference #1

7. What is Infrared Technology and how does it work?  Invisible radiant energy, electromagnetic radiation with longer wavelengths than those of visible light.  Extends from the nominal red edge of the visible spectrum at 700 nanometers (frequency 430 THz) to 1mm (300 GHz)  Thermal radiation emitted by objects near room temperature is infrared. Reference #1

8. What is Sonar Technology and how does it work?  Acronym for SOund Navigation And Ranging.  Uses sound propagation to navigate, communicate with or detect objects on or under the surface of the water.  Sends out a “ping” that hits anything that is in the way of the “ping”, which is then sent back to the sonar radar, creating a way to determine where things are in that direction. Reference #1

9. What is Pressure Sensors and how does it work?  Measures pressure, typically of gases or liquids.  Acts as a transducer; it generates a signal as a function of the pressure imposed Reference #1

10. Define the following terms:

11. Archimedes Principle  “Indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces.” Reference #1

12. Archimedes Principle  “Indicates that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces.” Reference #1

13. Boyle’s Law  “For a fixed amount of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional.” Reference #1

14. Buoyancy  The ability or tendency to float in water or air or some other fluid.” Reference #1

15. Buoyancy Force  “An upward force exerted by a fluid that opposes the weight of an immersed object.” Reference #1

16. Density  “The degree of compactness of a substance” Reference #1

17. Displacement  “The occupation by a submerged body or part of a body of a volume that would otherwise be occupied by a fluid.” Reference #1

18. Equilibrium  “A state in which opposing forces or influences are balanced.” Reference #1

19. Fluid  “A substance that has no fixed shape and yields easily to external pressure.” Reference #1

20. Force  Any interaction which tends to change the motion of an object Reference #1

21. Gravity  The force that attracts a body toward the center of the earth, or toward any other physical body having mass Reference #1

22. Mass  A coherent, typically large body of matter with no definite shape Reference #1

23. Neutral Buoyancy  A condition in which a physical body's average density is equal to the density of the fluid in which it is immersed Reference #1

24. Pressure  The continuous physical force exerted on or against an object by something in contact with it Reference #1

25. Principles of Floatation  When the buoyant force equals 1 ton, it will sink no farther. When any boat displaces a weight of water equal to its own weight, it floats Reference #1

26. Volume  The amount of space that a substance or object occupies, or that is enclosed within a container, especially when great Reference #1

27. Weight  A body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing Reference #1

28. Tether  The utmost length to which one can go in action; the utmost extent or limit of ability or resources Reference #1

29. Polarity  The relative orientation of poles; the direction of a magnetic or electric field Reference #1