Tugboats (1/7)
A tugboat is a small sturdy and powerful vessel designed to push or tow other vessels and barges
You will see them in every sizable port; smart, businesslike small ships, low in the water and surging out to a large inbound ship. Tugs represent power for pushing and pulling, an engine with just enough hull for adequate buoyancy. Thick fenders for close-quarters work, pushing a big ship alongside the quay against the wind, hauling her off at the end of a towing wire.
More: Tugboat ...
- Type:
- artificial reef, tugboat
- Built:
- 1939, Slidell LA as Rowen Card
- Specs:
- ( 106 x 26 ft ) 263 tons
- Sponsor:
- Ann E Clark Foundation
- Dedication:
- Ann E Clark
- Sunk:
- Thursday Sept 25, 2003 - Deepwater Artificial Reef
- GPS:
- 39°58.004' -74°10.721'
More: AJ McAllister ...
- Type:
- artificial reef, tugboat - USACE
- Built:
- 1941, Sturgeon Bay, WI as Escort
- Specs:
- ( 56 x 14 ft ) 34 tons
- Sunk:
- November 2005 - Townsends Inlet Artificial Reef
- Sponsor:
- GPS:
- 39°06.450' -74°36.020'
- Depth:
- 60 ft
More: Bay Jack ...
- Type:
- artificial reef, tugboat
- Built:
- 1941, Port Arthur, TX, as YTB-175 USS Chekilli
- Specs:
- ( 96 ft )
- Sponsor:
- Manasquan River Marlin & Tuna Club, Ann E Clark Foundation
- Dedication:
- MRMTC Member Memorial Reef
- Sunk:
- Sunday January 9, 2005 - Axel Carlson Artificial Reef
- GPS:
- 40°03.187' -73°59.283'
- Depth:
- 80 ft, top at 60 ft
More: Bay King YTB-175 ...
- Type:
- artificial reef, tugboat
- Built:
- 1958, Port Arthur, TX, as Margaret C
- Specs:
- ( 110 ft )
- Sunk:
- Tuesday Jan 30, 2009 - Delaware #11 Artificial Reef
- GPS:
- 38°40.540' -74°43.957'
More: Bay Tide ...
- Type:
- artificial reef, tugboat, USA
- Built:
- 1925, Wilmington DE as Stroudsburg
- Specs:
- ( 103 ft ) 195 GT
- Sponsor:
- Hay's Tug & Launch, GDF, Jersey Fresh Seafood Festival
- Sunk:
- Sunday June 9, 1995 - Atlantic City Artificial Reef
- GPS:
- 39°13.961' -74°12.926'
- Depth:
- 75 ft
More: Big Mama ...
- Type:
- artificial reef, tugboat, US Army
- Built:
- 1945 - Orlando CA USA, as ST-842, R.J. Wales
- Specs:
- ( 80 x 23 ft )
- Sponsor:
- Artificial Reef Association
- Sunk:
- Sunday July 27, 1997 - Shark River Artificial Reef
- GPS:
- 40°06.320' -73°41.855'
- Depth:
- 125 ft
More: Billy D ...
- Type:
- artificial reef, tugboat
- Built:
- 1943 Neponset MA USA as DPC-15, later Brooklyn
- Specs:
- ( 86 ft )
- Sponsor:
- Friends of the Norma K
- Dedication:
- Joan La Rie III
- Sunk:
- Tuesday October 30, 2001 - Axel Carlson Artificial Reef
- GPS:
- 40°03.390' -73°59.550'
More: Brooklyn DPC-15 ...
Human Vision Underwater
When light travels from a less-dense medium like air to a more-dense medium like water, the rays are refracted or bent towards the normal or perpendicular of the surface between the two mediums. In crude terms, light going from air to water will tend to be straightened, while light going from water to air will tend to be ... um ... crookeded. Confused yet? Take a look at the figure below.
In this figure, you can see the light rays traveling from an object in the water to your eyes, neglecting the effect of the flat glass lens of your mask. The blue lines trace the actual path of the light rays through the water and into the air, or conversely, through the air into the water - the direction really doesn't matter. As you can see, the rays are bent toward the perpendicular of the surface on the water side, and away from it on the air side.
More: Light, Air & Water ...