Search results
Results From The WOW.Com Content Network
The marker at the top of the screen was used to send the range to the fruit machine. The operator display of the CH system was a complex affair. The large knob on the left is the goniometer control with the sense button that made the antenna more directional. Determining the location in space of a given blip was a complex multi-step process.
Geomagnetic observatories are most useful when located away from human activities to avoid disturbances of anthropogenic origin, and the observation data is collected at a fixed location continuously for decades. Magnetic observations are aggregated, processed, quality checked and made public through data centers such as INTERMAGNET. [31] [32]
A World War II map shows the two areas where the Germans were setting up their secret "V" weapons to bombard England (right, center). These are the areas in which the Royal Air Force and 8th Air Force heavy bombers concentrated their bombs in order to knock out the weapons -- part of the pre-invasion plan.
SN 1572 (Tycho's Star, Tycho's Nova, Tycho's Supernova), or B Cassiopeiae (B Cas), was a supernova of Type Ia in the constellation Cassiopeia, one of eight supernovae visible to the naked eye in historical records.
The Maui Space Surveillance Complex (MSSC) [2] is a U.S. Space Force operating location for the 15th Space Surveillance Squadron and the Air Force Research Laboratory (AFRL) at Haleakala Observatory on Maui, Hawaii, with a twofold mission .
In physics, the observer effect is the disturbance of an observed system by the act of observation. [1] [2] This is often the result of utilising instruments that, by necessity, alter the state of what they measure in some manner. A common example is checking the pressure in an automobile tire, which causes some of the air to escape, thereby ...
The Egyptian fruit bat is the only megabat whose range is mostly in the Palearctic realm; [113] it and the straw-colored fruit bat are the only species found in the Middle East. [113] [114] The northernmost extent of the Egyptian fruit bat's range is the northeastern Mediterranean. [113] In East Asia, megabats are found only in China and Japan.
The Viterbi algorithm is named after Andrew Viterbi, who proposed it in 1967 as a decoding algorithm for convolutional codes over noisy digital communication links. [2] It has, however, a history of multiple invention, with at least seven independent discoveries, including those by Viterbi, Needleman and Wunsch, and Wagner and Fischer. [3]