Search results

Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of signals, whether communications between people (communications...

any extraterrestrial civilization attempting to communicate via radio signals might do so using a frequency of 1420 megahertz (21-centimeter spectral...

strategy. Signals are given in contexts such as mate selection by females, which subjects the advertising males' signals to selective pressure. Signals thus...

three signals are yet considered to be fully operational for civilian use. In addition to the four aforementioned signals, there are restricted signals with...

offense by giving signals to the players using a multicoloured fan. The defensive team play is directed by the manager's orders and hand signals by the fielders...

of way. T signal (trams) in Hong Kong Bus and tram signals in Karlsruhe, Germany Some regions have signals that are interruptible, giving priority to...

as a signaling instrument. It was used to give signals to the entire unit. The military writer Vegetius described the use of horns to give signals: The...

o'clock) signals joy, such as the birth of a healthy baby. A tilt of the blades to 11-2-5-8 o'clock signals mourning, or warning. It was used to signal the...

(which is white and has a green border) to give the ready signal to the train driver. After sunset they give signals with flashlights. Train drivers are not...

The railway signalling system used across the majority of the United Kingdom rail network uses lineside signals to control the movement and speed of trains...

millions of molecules. As with other signals, the transduction of biological signals is characterised by delay, noise, signal feedback and feedforward and interference...

help in Wiktionary, the free dictionary. Help is a word meaning to give aid or signal distress. Help may refer to: Help (2010 film), a Bollywood horror...

The rainstorm warning signals are a set of signals used in Hong Kong to alert the public about the occurrence of heavy rain which is likely to bring about...

addition of distant signals on the approach to stop signals. The distant signal gave the driver warning that they were approaching a signal which might require...

mounted sentry or picket, who has the function of bringing information, giving signals or warnings of danger, etc., to a main body of troops. In modern terms...

Virtue signalling is a pejorative neologism for the idea that an expression of a moral viewpoint is being done disingenuously, with the intent of communicating...

was called the "absolute block system". Fixed mechanical signals began to replace hand signals from the 1830s. These were originally worked locally, but...

notify it of an event. Common uses of signals are to interrupt, suspend, terminate or kill a process. Signals originated in 1970s Bell Labs Unix and...

distance of 2 metres would provide a gravity gradient signal approximately one E. Mountains can give signals of several hundred Eotvos. Full tensor gradiometers...

by the Vienna Convention on Road Signs and Signals as the international standard. In Australia, the Give Way sign evolved similarly to its counterpart...