Marine Science & Scientific Diving

13/05/2025

30/04/2025

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At first, the lifeguards thought the dolphins were just being playful.

But when the pod started circling them—tight, fast, and forceful—it became clear: this wasn’t a game. Every time a swimmer tried to break away, a dolphin pu$hed them back into the center. Confused, they stayed huddled together… until they saw it: a massive great white shark, silently stalking just beneath the surface.

What happened next was something out of a legend—but it was real. A group of wild dolphins stood between humans and a predator, forming a living, breathing shield.

For 40 heart-pounding minutes, they refused to back down.

This is the true story of instinct, protection, and the day the ocean’s most graceful guardians became heroes. 👇👇👇

02/04/2025

05/02/2025

19/01/2025

09/01/2025

A ship’s speed is measured in knots because it is a unit of speed historically used in navigation, tied to the maritime tradition. The term originates from a method sailors used in the past to measure speed at sea.

The History:
• Sailors used a device called a log line, a rope with evenly spaced knots tied along its length.
• The log line was thrown into the water, and as the ship moved, the number of knots that passed through a sailor’s hands in a specific amount of time (usually 30 seconds) was counted.
• This count determined the ship’s speed in “knots.”

Why Knots?
• A knot is equal to one nautical mile per hour.
• Nautical miles are based on the Earth’s circumference and are more practical for navigation because they are tied to the planet’s geography (1 nautical mile = 1 minute of latitude = 1.852 kilometers).

Using knots allows for consistency and precision in maritime and aerial navigation, making it the standard unit for measuring speed at sea and in the air.

29/12/2024

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