Phosphorus
Phosphorus is a chemical element with the symbol P and atomic number 15. In maritime context, phosphorus is commonly used as a signaling device to indicate distress or the need for assistance. The use of phosphorus for signaling at sea dates back to ancient times, when sailors would light fires on hilltops to alert nearby ships of danger or to request aid. Today, phosphorus is used in the form of handheld flares, which emit a bright red light that can be seen from a distance of several miles. These flares are an essential safety device for mariners, and are required by law to be carried on board all vessels.
Your Previous Searches
Random Picks
- Throwable Flotation Devices: Throwable Flotation Devices (TFDs) are devices that can be thrown to a person in water to provide buoyancy and prevent drowning. TFDs are typically small, lightweight, and easy to handle. They can be made of various materials such as foam, ... Read More >>
- Cyclodial Propulsion System: Cyclodial propulsion system is a type of marine propulsion system that uses a circular motion to generate thrust. The system consists of a circular duct that surrounds the propeller and rotates around it. The duct has a series of curved bla ... Read More >>
- Heavy-lift Vessel: A heavy-lift vessel is a specialized ship designed to transport oversized and overweight cargo that cannot be carried by standard vessels. These vessels are equipped with heavy-duty cranes and other specialized equipment to load and unload ... Read More >>
Top News
SEAL Team 6 is said to be training for a fight with China over Taiwan. Here's wh...
The role of the elite unit may be limited but not inconsequential. "You don't use a scalpel for a job a hammer can do," a former SEAL said....
News Source: Business Insider on 2024-10-19
The last in-person vote in the US will be cast on the desolate tundra of Alaska'...
On a desolate slab of island tundra on Alaska's Aleutian Islands, a resident of a tiny village called Adak will again become the last American to cast an in-person ballot for president...
News Source: ABC News on 2024-10-19
A historically Black community grapples with lasting impacts after Baltimore bri...
As the dust settled after the deadly collapse of Baltimore’s Francis Scott Key Bridge, residents of Turner Station found themselves facing an uncertain future....
News Source: NBC News on 2024-10-18
These are the biggest challenges facing the US Army in the Pacific, according to...
Soldiers face daunting challenges in navigating the vastness of the Indo-Pacific, where a future war could take place across a range of environments....
News Source: Business Insider on 2024-10-18
Teen kayaker rescued after spending 12 hours treading water and clinging to his ...
A 17-year-old kayaker spent nearly 12 hours treading water and clinging to his kayak Wednesday after becoming separated from his high school paddling group, the U.S....
News Source: NBC News on 2024-10-18