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Time of useful consciousness ( TUC ), also effective performance time ( EPT ), is defined as the amount of time an individual is able to function effectively (e.g. perform flying duties) in an environment of inadequate oxygen supply. [1] It is the period of time from the interruption of the oxygen supply or exposure to an oxygen-poor ...
The standard pace is 60 paces per minute (88 for the FFL ). Australian Army Slow Time is 70 paces per minute with a 75cm pace. British armed services Slow March is 65 paces per minute. Half Step March or Cut the pace: This is a US march pace. It is at the same tempo as Quick Time, but instead of 30 inches, the step is 15 inches.
Military time zone. The military time zones are a standardized, uniform set of time zones for expressing time across different regions of the world, named after the NATO phonetic alphabet. The Zulu time zone (Z) is equivalent to Coordinated Universal Time (UTC) and is often referred to as the military time zone.
Enslaved labor on United States military installations was a common sight in the first half of the 19th century, for agencies and departments of the federal government were deeply involved in the use of enslaved blacks. [1] In fact, the United States military was the largest federal employer of rented or leased slaves throughout the antebellum ...
A shampoo label from the U.S. that shows a round metric quantity taking secondary status in parentheses next to non-integer U.S. customary quantity. Metrication (or metrification) is the process of introducing the International System of Units, also known as SI units or the metric system, to replace a jurisdiction's traditional measuring units.
Snellen chart. Purpose. Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula ...
A British MQ-9A Reaper operating over Afghanistan in 2009. An unmanned combat aerial vehicle (UCAV), also known as a combat drone, fighter drone or battlefield UAV, is an unmanned aerial vehicle (UAV) that is used for intelligence, surveillance, target acquisition, and reconnaissance and carries aircraft ordnance such as missiles, anti-tank guided missiles (ATGMs), and/or bombs in hardpoints ...
Historical periods denotes periods of human development with the advantage of the development of writing. Written records tend to provide more socio-political insight into the dominant nations, and hence allow categorization according to the ruling empires and cultures, such as Hellenistic , Roman , Viking .