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2. Seaview SVII - Wikipedia

   en.wikipedia.org/wiki/Seaview_SVII

   The Seaview SVII is an underwater camera designed by the Catlin Seaview Survey team, intended to photograph coral reefs to provide visual documentation of a reef's health. . The camera is designed to be controlled by a diver in shallow waters, and is propelled at a constant slow speed by a propeller mounted near the rear of the cam

3. USRC Jefferson (1845) - Wikipedia

   en.wikipedia.org/wiki/USRC_Jefferson_(1845)

   Jefferson's original propeller was designed by John Ericsson. This propeller broke twice and was replaced by a propeller design by Richard Loper that was 9 ft 6 in (2.90 m) in diameter. The new propeller was produced in Philadelphia and shipped to Buffalo for installation on Jefferson in August 1845.

4. Contra-rotating marine propellers - Wikipedia

   en.wikipedia.org/wiki/Contra-rotating_marine...

   ABB provided an azimuth thruster for ShinNihonkai Ferries in form of the CRP Azipod, [2] claiming efficiency gains from the propeller (about 10% increase [3]) and a simpler hull design. Volvo Penta have launched the IPS (Inboard Performance System), [4] an integrated diesel, transmission and pulling contra-rotating propellers for motor yachts.

5. Marine propulsion - Wikipedia

   en.wikipedia.org/wiki/Marine_propulsion

   Other vessels may have twin, triple or quadruple screws. Power is transmitted from the engine to the screw by way of a propeller shaft, which may be connected to a gearbox. The propeller then moves the vessel by creating thrust. When the propeller rotates the pressure in front of the propeller is lower than the pressure behind the propeller.

6. Propeller - Wikipedia

   en.wikipedia.org/wiki/Propeller

   Cavitating propeller in water tunnel experiment Cavitation damage evident on the propeller of a personal watercraft Bronze propeller & anti-cavitation plate, & Schilling rudder (on a river barge) Cavitation is the formation of vapor bubbles in water near a moving propeller blade in regions of very low pressure.

7. The Evolution of the Side-View Mirror

   www.aol.com/evolution-side-view-mirror-143000237...

   Features: Power adjustment, memory positioning, side-view camera, defrost (body-color cap sold separately) Cost: $1613. You Might Also Like. Future Cars Worth Waiting For: 2021-2025.

8. Side-scan sonar - Wikipedia

   en.wikipedia.org/wiki/Side-scan_sonar

   Side-scan uses a sonar device that emits conical or fan-shaped pulses down toward the seafloor across a wide angle perpendicular to the path of the sensor through the water, which may be towed from a surface vessel or submarine (called a “towfish”), or mounted on the ship's hull.

9. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!