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Do not explicitly define the size of an image in pixels unless there is a good reason to do so. Preferably the size should be specified as a value relative to the user's preferred thumbnail width, using the |upright= scaling factor parameter rather than pixel values, whenever an image is to be displayed at something other than the default width.
A user's wall is visible to anyone with the ability to see their full profile, and friends' wall posts appear in the user's News Feed. In July 2007, Facebook allowed users to post attachments to the wall, whereas previously the wall was limited to text only. [12] In May 2008, the Wall-to-Wall for each profile was limited to only 40 posts.
An image that is 2048 pixels in width and 1536 pixels in height has a total of 2048×1536 = 3,145,728 pixels or 3.1 megapixels. One could refer to it as 2048 by 1536 or a 3.1-megapixel image. The image would be a very low quality image (72ppi) if printed at about 28.5 inches wide, but a very good quality (300ppi) image if printed at about 7 ...
In the table below, the column "ISO 8859-1" shows how the file signature appears when interpreted as text in the common ISO 8859-1 encoding, with unprintable characters represented as the control code abbreviation or symbol, or codepage 1252 character where available, or a box otherwise. In some cases the space character is shown as ␠.
Pixels per inch (or pixels per centimetre) describes the detail of an image file when the print size is known. For example, a 100×100 pixel image printed in a 2 inch square has a resolution of 50 pixels per inch. Used this way, the measurement is meaningful when printing an image.
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• Fake email addresses - Malicious actors sometimes send from email addresses made to look like an official email address but in fact is missing a letter(s), misspelled, replaces a letter with a lookalike number (e.g. “O” and “0”), or originates from free email services that would not be used for official communications.