Tell-tale

A tell-tale is a reference indicator or a sign that clearly signals that something else is true or is about to happen.

ailing

In a nautical or sailing context a tell-tale is a piece of cloth or fabric that is tied or attached to a stay, one of several wires, that holds a mast in place on a sailboat. Usually there will be one tell-tale on the port stay and one on a starboard stay.

Tell-tales can also be attached to a sail, used as a guide when trimming (adjusting) a sail. On the mainsail tell-tales are on the leech (aft edge) and when trimmed properly should be streaming backwards. On the jib there are tell-tales on both sides of the luff of the sail. As a general guide, the windward tell-tale should stream aft (backwards) with an occasional lift, the leeward front tell-tale should stream aft.

pace

The Phoenix spacecraft contains a tell-tale, developed by the University of Aarhus in Denmark, as part of its "Meteorological Station". [Citation
url=http://www.marslab.dk/TelltaleProject.html
title=The Telltale project
author=Mars Simulation Laboratory, University of Aarhus, Denmark
] [Citation
url=http://science.slashdot.org/article.pl?sid=08/05/27/153240
title= Mars Probe Brings the "Weather Rock" New Respect
author=Slashdot 27may2008
] It is a small tube that will be deflected by the martian wind. The science payload’s stereo camera will record images of the tell-tale that will be used to determine wind direction and speed. [Citation
url=http://www.nasa.gov/pdf/226508main_phoenix-landing1.pdf
title=Phoenix Landing Mission to the Martian Polar North
editor=Nasa Press Kit/May 2008
]

Railroad

In a steam locomotive the tell-tales are longitudinal holes drilled in the stays of the firebox to provide early warning of corrosion.

A tell-tale is also a series of ropes suspended over the tracks above the height of a boxcar. These ropes are intended to give warning to a brakeman on the roof of the train that the train is approaching a low-clearance obstacle, such as a tunnel or a bridge. A Chesapeake and Ohio Railway tell-tale had 17 of these ropes hanging from a tube suspended across the track, the bottom of the ropes 12" lower than the height of the obstruction, and placed 100 to 300 feet before the obstruction.

Linguistics

In linguistics a tell-tale is a string of characters that occurs only within one language within a group of languages. A reader can be completely certain which language they are reading if he or she comes across a tell-tale. In this sense, a tell tale is a dead give away of what the language is.

More formally, a tell-tale of a member L of some language class is a finite subset of "L" such that no other language containing the subset in the class is a proper subset of "L". In other words, a tell-tale is a finite subset that makes a language being a minimal consistent one in the class. The term is used in the field of artificial intelligence and machine language learning as well as linguistics. See also, Language identification in the limit

References


Wikimedia Foundation. 2010.

Synonyms:

Look at other dictionaries:

  • Tell tale — est un film anglo américain réalisé par Michael Cuesta, sorti en 2010. Sommaire 1 Fiche technique 2 Résumé 3 Distribution 4 …   Wikipédia en Français

  • tell|tale — «TEHL TAYL», noun, adjective. –n. 1. a person who tells tales on others; person who reveals private or secret matters from malice. SYNONYM(S): talebearer, tattler. 2. Figurative. a warning sign; indication. 3. any one of various indicators or… …   Useful english dictionary

  • tell-tale — n. 1 a person who reveals (esp. discreditable) information about another s private affairs or behaviour. 2 (attrib.) that reveals or betrays (a tell tale smile). 3 a device for automatic monitoring or registering of a process etc …   Useful english dictionary

  • tell-tale — also telltale ADJ: ADJ n Something that is described as telltale gives away information, often about something bad that would otherwise not be noticed. Only occasionally did the telltale redness around his eyes betray the fatigue he was suffering …   English dictionary

  • tell-tale — I. n. Tattler, talebearer, blabber. II. a. Babbling, tattling, blabbing …   New dictionary of synonyms

  • Tell-Tale (película) — Tell Tale Título Corazón delator Ficha técnica Dirección Michael Cuesta Producción Michael Costigan, Ridley Scott, Christopher Tuffin, Tony Scott …   Wikipedia Español

  • Tell-tale (automotive) — A group of tell tales A tell tale (or idiot light, especially in North America[1]) is an indicator of the status or malfunction of a system within a motor vehicle. Tell tales consist of a light bulb or an LED which lights up a symbol or text… …   Wikipedia

  • tell-tale signature — demaskuojamieji požymiai statusas T sritis apsauga nuo naikinimo priemonių apibrėžtis Požymiai, pagal kuriuos galima nustatyti galimus priešo veiksmus ir jų pobūdį. Pvz., priešo pasirengimą naudoti masinio naikinimo ginklą galima nustatyti pagal… …   Apsaugos nuo naikinimo priemonių enciklopedinis žodynas

  • tell-tale-tattle —    See tattle tale …   A dictionary of epithets and terms of address

  • tell-tale-tit —    See tattle tale …   A dictionary of epithets and terms of address


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.