The Musée national de la Marine (French pronunciation: [myze nɑsjɔnal də la maʁin]; "National Navy Museum") is a maritime museum located in the Palais de Chaillot, Trocadéro, in the 16th arrondissement of Paris. It has annexes at Brest, Port-Louis, Rochefort (Musée National de la Marine de Rochefort), and Toulon. The permanent collection originates in a collection that dates back to Louis XV of France.
>>>PUT SHARE BUTTONS HERE<<<
👉 Musée national de la Marine in the context of Fresnel lens
A Fresnel lens (/ˈfreɪnɛl, -nəl/ FRAY-nel, -nəl; /ˈfrɛnɛl, -əl/ FREN-el, -əl; or /freɪˈnɛl/ fray-NEL) is a type of composite compact lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections.
The simpler dioptric (purely refractive) form of the lens was first proposed by Georges-Louis Leclerc, Comte de Buffon, and independently reinvented by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. The catadioptric (combining refraction and reflection) form of the lens, entirely invented by Fresnel, has outer prismatic elements that use total internal reflection as well as refraction to capture more oblique light from the light source and add it to the beam, making it visible at greater distances.
In this Dossier
Musée national de la Marine in the context of Caravel
The caravel (Portuguese: caravela, IPA: [kɐɾɐˈvɛlɐ]) was a small sailing ship developed by Portugal. It could be rigged either entirely with lateen sails or with a combination of lateen and square sails. It was known for its agility and speed and its capacity for sailing windward (beating). Caravels were used by the Portuguese and, later, by the Spanish for the voyages of exploration during the 15th and 16th centuries, in the Age of Exploration.
The caravel is a poorly understood type of vessel. Though there are now some archaeologically investigated wrecks that are most likely caravels, information on this type is limited. We have a better understanding of the ships of the Greeks and Romans of classical antiquity than we do of the caravel.