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The programmers' text editor Emacs (short for "editing macros") follows this idea to a conclusion. In effect, most of the editor is made of macros. Emacs was originally devised as a set of macros in the editing language TECO; it was later ported to dialects of Lisp.
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. Online horror fiction Creepypastas are horror -related legends or images that have been copied and pasted around the Internet. These Internet entries are often brief, user-generated, paranormal stories intended to scare, frighten, or discomfort readers. The term "creepypasta" originates ...
Sound sample ⓘ An 1860s-era siren. [2] A siren is a loud noise-making device. There are two general types: mechanical and electronic. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks. Sirens are used on emergency service vehicles such as ambulances, police cars, and fire engines.
A Federal Signal Modulator siren in Bay Head, New Jersey.. Federal Signal Modulators (also known as Modulator Speaker Arrays) are electronic warning devices produced by Federal Signal Corporation that are used to alert the public about tornadoes, severe weather, earthquakes, fires, lahars, tsunamis, or any other disaster.
The Siren, a lost Fox film starring Valeska Suratt; The Siren, an American melodrama directed by Byron Haskin; Siren, a Belgian animated short film; Sirens, starring Hugh Grant, directed by John Duigan
A unique feature of the SiraTone siren series was the ability to conduct routine tests with a Westminster Chime melody instead of an actual alarm tone, intended to be a more pleasant alternative to the use of actual alarm tones. This allowed for operators to test sirens without fear of public panic and still ensure siren speakers were fully ...
A siren disk is used in pneumatic sirens and has holes which are variously spaced apart. When the disk is spun in front of a jet of air, the holes modulate the air-jet which produces a sound. The pitch of a siren is produced by "the frequency of the impulses of compressed air passing through the openings in a rotating disk."
Siren, [a] known as Forbidden Siren in the PAL region, is a 2003 survival horror stealth video game developed and published by Sony Computer Entertainment for the PlayStation 2. It was originally released in Japan in November 6, 2003, and in other regions between March and April of the following year.