low-priority payload
11Hainan Province Paracels, Spratlys, and Zhongsha Islands Authority — The Hainan Province Paracels, Spratlys, and Zhongsha Islands Authority ( zh. 海南省西沙群岛、南沙群岛、中沙群岛办事处) or the Paracels Authority (西沙办) is a county level political subdivision of China under Hainan Province. It exercises political sovereignty, both… …
12Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
13space exploration — Investigation of the universe beyond Earth s atmosphere by means of manned and unmanned spacecraft. Study of the use of rockets for spaceflight began early in the 20th century. Germany s research on rocket propulsion in the 1930s led to… …
14railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …
15Modern US endurance UAVs — Main article: History of unmanned aerial vehicles RQ 3A Darkstar UAV / classified Darkstar follow on Main article: RQ 3 DarkStar The Gnat 750 and Predator were the first in a series of Tier UAVs considered by the US Air Force. In the USAF plan,… …
16Asynchronous Transfer Mode — In electronic digital data transmission systems, the network protocol Asynchronous Transfer Mode (ATM) encodes data traffic into small fixed sized cells. The standards for ATM were first developed in the mid 1980s. The goal was to design a single …
17rocket and missile system — ▪ weapons system Introduction any of a variety of weapons systems that deliver explosive warheads to their targets by means of rocket propulsion. Rocket is a general term used broadly to describe a variety of jet propelled missiles… …
18Ethernet frame — A data packet on an Ethernet link is called an Ethernet frame. A frame begins with Preamble and Start Frame Delimiter. Following which, each Ethernet frame continues with an Ethernet header featuring destination and source MAC addresses. The… …
19Constellation program — logo Constellation Program (abbreviated CxP) is a human spaceflight program within NASA, the space agency of the United States. The stated goals of the program were to gain significant experience in operating away from Earth s environment,… …
20International Space Station — ISS redirects here. For other uses, see ISS (disambiguation). International Space Station …
