Search results
Results from the WOW.Com Content Network
GIF animation of an Apollonian sphere packing with transparent background. Transparency in computer graphics is possible in a number of file formats.The term "transparency" is used in various ways by different people, but at its simplest there is "full transparency" i.e. something that is completely invisible.
The reason a spacer GIF is invisible is so that an HTML developer can create a table cell and fill the background with a specific color that can be viewed through the transparent spacer GIF. For instance, a developer seeking to create a square blue box 500 pixels on a side could use a separate blue 500×500 graphic at the expense of additional ...
The PNG file format supports 8-bit (256 colors) paletted images (with optional transparency for all palette colors) and 24-bit truecolor (16 million colors) or 48-bit truecolor with and without alpha channel – while GIF supports only 8-bit palettes with a single transparent color.
GIF was one of the first two image formats commonly used on Web sites, the other being the black-and-white XBM. [5] In September 1995 Netscape Navigator 2.0 added the ability for animated GIFs to loop. While GIF was developed by CompuServe, it used the Lempel–Ziv–Welch (LZW) lossless data compression algorithm patented by Unisys in 1985.
HD 20781 is a G or K-type main-sequence star with a very large angular separation of 252 arcsec, corresponding to 9080 AU at the distance of HD 20782. [13] In 2011, two Neptune-mass planets were announced around the nearby HD 20781, and initially they too were believed to be in eccentric orbits, but less so. [ 14 ]
The Sun is the star at the center of the Solar System.It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
The Vergina Sun (Greek: Ήλιος της Βεργίνας, romanized: Ilios tis Vergínas, lit. 'Sun of Vergina'), also known as the Star of Vergina, Vergina Star or Argead Star, is a rayed solar symbol first appearing in ancient Greek art of the period between the 6th and 2nd centuries BC. The Vergina Sun proper has sixteen triangular rays ...
After the establishment of the Japan Self-Defense Forces in 1954, the off-set Rising Sun Flag was re-adopted for the JMSDF and a new 8-rays Rising Sun Flag with a yellow border for the JGSDF and JSDF was approved by the Supreme Commander for the Allied Powers (SCAP/GHQ). The flag with the off-set sun and 16 rays is the ensign of the Maritime ...