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The P (or Phenate) Helmet, officially called the Tube Helmet , [1] appeared in July 1915, [2] replacing the simpler Hypo Helmet. It featured two mica eyepieces instead of the single visor of its predecessor, and added an exhale valve fed from a metal tube which the wearer held in his mouth. The exhale valve was needed because a double layer of ...
The Small Box Respirator (SBC) was a British gas mask of the First World War and a successor to the Large Box Respirator. In late 1916, the respirator was introduced by the British with the aim to provide reliable protection against chlorine and phosgene gases. [1] [page needed] The respirator offered a first line of defence against these.
Pith helmet. The pith helmet, also known as the safari helmet, salacot, [a] sola topee, sun helmet, topee, and topi [b] is a lightweight cloth-covered helmet made of sholapith. [1] The pith helmet originates from the Spanish military adaptation of the native salakot headgear of the Philippines. [2] [3]
The timeline of underwater diving technology is a chronological list of notable events in the history of the development of underwater diving equipment.With the partial exception of breath-hold diving, the development of underwater diving capacity, scope, and popularity, has been closely linked to available technology, and the physiological constraints of the underwater environment.
Personnel Armor System for Ground Troops (PASGT, pronounced / ˈ p æ z ɡ ə t / PAZ-gət) is a combat helmet and ballistic vest that was used by the United States military from the early 1980s until the early or mid-2000s, when the helmet and vest were succeeded by the Lightweight Helmet (LWH), Modular Integrated Communications Helmet (MICH), and Interceptor Body Armor (IBA) respectively.
November 20 – December 2. Cyclones Muifa ( Unding), Merbok ( Violeta ), Winnie and Nanmadol ( Yoyong) hit the country, affecting million people, causing massive fatalities and damages. In November, a tropical depression ( Winnie) kills more than 1,500 people, causes damages of estimated ₱679 million (US$15.8 million).
e. The history of the Philippines from 1565 to 1898 is known as the Spanish colonial period, during which the Philippine Islands were ruled as the Captaincy General of the Philippines within the Spanish East Indies, initially under the Viceroyalty of New Spain, based in Mexico City, until the independence of the Mexican Empire from Spain in 1821.
The Philippine Commonwealth was established in 1935, as a 10-year interim step prior to full independence. However, in 1942 during World War II, Japan occupied the Philippines. The U.S. military overpowered the Japanese in 1945. The Treaty of Manila in 1946 established the independent Philippine Republic.