Nautical Mile

11/29/2025

Most fish rely entirely on their gills to extract oxygen from water, but the mighty Tarpon possesses a secret evolutionary weapon: it can breathe atmospheric air.

If you observe a school of tarpon, you will frequently see them break the surface in a smooth, arcing motion known as "rolling."

During this roll, the fish opens its mouth to gulp a mouthful of air. This behavior is possible because of a unique, modified swim bladder.

In most fish, the swim bladder controls buoyancy. However, the tarpon's swim bladder is highly vascularized and lined with spongy alveolar tissue, allowing it to function almost exactly like a primitive lung.

This is necessary- This adaptation allows tarpon to thrive in oxygen-poor (hypoxic) environments, such as stagnant mangrove lagoons or brackish backwaters. While other fish would suffocate in these conditions, the tarpon can simply surface for a breath, giving juveniles a safe place to hide and adults a unique hunting ground.

11/28/2025

11/26/2025

It sounds like a sailor’s tall tale, but many shrimp boats are indeed built from concrete! This construction method, known as ferro-cement, creates a vessel that is surprisingly buoyant, durable, and cost-effective.

The process is more like sculpting than pouring a sidewalk. It begins with an armature—a skeletal frame made of steel pipes or rebar bent into the precise shape of the hull.

Builders wrap this frame in multiple tight layers of chicken wire or fine metal mesh. A specialized, sand-rich mortar is then plastered by hand over the mesh, penetrating it completely. This forms a thin, incredibly strong composite shell, often less than an inch thick.

So, how does it float? Physics. Even though concrete is heavy, the boat is hollow. As long as the boat weighs less than the water it displaces (Archimedes’ principle), it will float. These concrete hulls are prized for being fireproof, rot-resistant, and easy to repair.

11/26/2025

2.2 million a week can rent you the "Octopus," a 414-foot luxury superyacht available for charter.

Swimming pool, cinema, and two helicopter pads, even a remote submarine and a dive center with a hyperbaric chamber.

The charter cost starts at $2.2 million per week, plus expenses. It can accommodate 12 guests in 13 cabins.

11/26/2025

In 2015, Scientists dropped a hydro-phone 7-miles down into the Mariana Trench. As opposed to silence, they heard sounds of earthquakes, ships, whale songs, even a passing category 4 typhoon.

11/25/2025

7-mile bridge in the 50's

11/25/2025

So many people asked to get a copy of this blown up, I sent the file to High Impact Designz, in Cape Coral near PI Road & Del Prado, waterproof 18X24 laminated on 1/4" coroplast. $20 (that's really cheap for this) (239) 772-3000 735 NE 19th Pl #15, Cape Coral, FL 33909

11/25/2025

In 2022, after burning for almost two weeks, the abandoned cargo ship holding around $400 million worth of supercars sunk off the Azores Islands in the North Atlantic Ocean. The “Felicity Ace” cargo is said to be some 4,000 vehicles, including Porsches, Audis, Lamborghinis and Bentleys.

11/25/2025

Where I come from people say, "Thank You!" Nautical Mile Magazine

11/25/2025

USCG find 4 Polk County boaters after going missing off Clearwater:

The Clearwater Police Department announced the US Coast Guard found a boat capsized about 26 miles offshore, with all four boaters alive and being transported back to shore.

The four boaters were reported missing after failing to return from a fishing trip on Monday.

https://abcnews.go.com/US/4-rescued-missing-after-boat-overturns/story?id=120776560

A good Samaritan reported a capsized boat near St. Lucie Inlet in Florida. The U.S. Coast Guard rescued four people, while five remain missing.

11/25/2025

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11/24/2025

Key West Bight Marina docks (lobster traps)