Reflow soldering is a process in which a solder paste (a sticky mixture of powdered solder and flux) is used to temporarily attach one or several electrical components to their contact pads, after which the entire assembly is subjected to controlled heat, which melts the solder, permanently connecting the joint. Heating may be accomplished by passing the assembly through a reflow oven or under an infrared lamp or by soldering individual joints with a hot air pencil. Reflow soldering is the most common method of attaching surface mount components to a circuit board, although it can also be used...

Google Books (previously known as Google Book Search and Google Print) is a service from Google Inc. that searches the full text of books and magazines that Google has scanned, converted to text using optical character recognition, and stored in its digital database. Books are provided either by publishers and authors, through the Google Books Partner Program, or by Google's library partners, through the Library Project. Additionally, Google has partnered with a number of magazine publishers to digitize their archives. The Publisher Program was first known as 'Google Print' when it was introduced...

English is a West Germanic language that originated from Anglo-Frisian dialects brought to Britain in the fifth to seventh centuries by Germanic invaders and settlers from what is now northwest Germany and the Netherlands. The Old English of the Anglo-Saxon era developed into Middle English, the language as spoken between the Norman Conquest and the late 15th century. A significant influence on the shaping of Middle English came from contact with the North Germanic languages spoken by the Scandinavians who conquered and colonised parts of Britain during the 8th and 9th centuries; this contact led...