flash

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flash

1. Chemistry a volatile mixture of inorganic salts used to produce a glaze on bricks or tiles
2. 
a. a sudden rush of water down a river or watercourse
b. a device, such as a sluice, for producing such a rush
3. Photog informal short for flashlight, flash photography
4. Engineering a ridge of thin metal or plastic formed on a moulded object by the extrusion of excess material between dies

Flash

 

a fin on a casting or stamping. Flash around a casting is generated along the parting line of the casting mold in the process of filling the mold with molten metal. Flash is cut off during fettling of the casting. Flash around a stamping is produced by extrusion of excess metal from open dies and is cut off in trimming presses.

flash

[flash]
(astronomy)
A thermal instability that occurs in late stages of stellar evolution, according to numerical calculations.
(engineering)
In plastics or rubber molding or in metal casting, that portion of the charge which overflows from the mold cavity at the joint line.
(metallurgy)
A fin of excess metal along the mold joint line of a casting, occurring between mating die faces of a forging or expelled from a joint in resistance welding.

flash

1. A color variation on the surface of a brick, produced intentionally or otherwise, due to surface fusion or vitrification of a film of different texture.
2. Abbr. for flashing.

Flash

(file format, World-Wide Web)
(Or "Shockwave Flash") A file format for delivering interactive vector graphics and animation on the World-Wide Web, developed by Macromedia.

http://macromedia.com/software/flash/.

flash

(2)
1. <chat> A program which allows one to flood another Unix user's terminal with garbage, through exploiting a common security hole in the victim's host's talk daemon. Users with "messages off" (mesg n) and users on systems running fixed talk daemons, or not running talk daemons at all, are immune.

flash

(1) The most common non-volatile storage technology. See flash memory.

(2) A telephone button. See flash button.

(3) To install a different mobile OS. See Android ROM.

(4) (Flash) A multimedia authoring and playback system from Adobe. Flash content is created in authoring applications, such as Flash MX and Flash Professional, and viewed in any computer that has the Adobe Flash Player installed. Flash animations support space-efficient vector images, which download quickly; a feature that helped catapult Flash to success when dial-up access was the norm (see vector graphics).

Once the primary format for animated ads and video clips on the Web, many sites, including YouTube, switched from Flash to HTML5 for multimedia. Because Flash is also a development platform, Flash was never permitted on Apple's mobile devices. In addition, Google dropped the Flash player for Android devices in 2012. See HTML5.

Animations Are Choreographed
To create an animation, the Flash designer imports graphics, sound and video elements created in other applications, places them on sequential timelines and defines their interaction. The timelines and elements are saved in an .FLA source file and published to an .SWF file for playback (see SWF).

Flash Movies: Animations and Video
Flash also provides a video format that uses the .FLV extension. Although animations in Flash (SWFs) are technically "Flash movies," and videos in Flash (FLVs) are "Flash videos," both are called "Flash movies." SWF files may contain some video, but FLV files are all video. See Flash video.

Flash Applications
As of Flash Version 5, Flash became fully programmable, enabling the creation of interactive Web-based applications (see Flex). Flash was created by Macromedia and introduced in 1996. In 2005, Adobe acquired the company.


Animation Authoring
Objects are placed in separate timelines that move in sequence. Although this software has basic drawing and painting tools (top left), multimedia elements are typically imported.