description Martha Coston Overview
Martha Coston (1826-1904) was an American inventor and businesswoman associated with the development of the Coston night signal, a system of color-coded pyrotechnic flares for maritime communication. Building on notes left by her late husband, Benjamin Franklin Coston, she spent years refining a practical red, white, and green signaling system. The United States Navy adopted the signals, which were also used by merchant vessels and lifesaving services.
help Martha Coston FAQ
Who was Martha Coston?
Martha Coston was an American inventor and businesswoman who lived from 1826 to 1904. She is associated with the Coston night signal, a system of colored pyrotechnic flares for ships.
What were Coston signals used for?
The signals helped ships communicate at night using combinations of colored lights. Maritime crews could use the flares to send visual messages over distances where voice communication was impossible.
How did Martha Coston develop the Coston signal?
After the death of her husband, Benjamin Franklin Coston, Martha Coston worked from notes he had left behind. She spent years improving the chemistry, casing, and color system so the flares could be produced and used reliably.
Why are Coston signals important in maritime history?
They provided a practical visual communication system before modern radio became common at sea. The color-coded flare technology was used by naval and commercial vessels for signaling and emergency communication.
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