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A pen is a handheld device used to apply ink to a surface, usually paper, for writing or drawing. [1] Additional types of specialized pens are used in specific types of applications and environments such as in artwork, electronics, digital scanning and spaceflight, and computing.
The Sondergerät SG 500 Jagdfaust ("hunting fist") or Jägerfaust ("hunter's fist") was an experimental airborne anti-bomber recoilless rifle designed for use in the Me 163 Komet rocket plane [1] by the German Luftwaffe during World War II.
lighttpd (prescribed pronunciation: "lighty") [2] is an open-source web server optimized for speed-critical environments while remaining standards-compliant, secure and flexible. [ citation needed ] It was originally written by Jan Kneschke as a proof-of-concept of the c10k problem – how to handle 10,000 connections in parallel on one server ...
A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.
Alfine SG-500 2006 2016 (?) [15] 8 307% 1600 g City Shimano Nexus Inter-8: 8 307% 5th gear 1550-2040 g City Shimano Nexus Inter-7: 1995 7 244% 1465-1860 g
The general design of a gel pen is similar to that of a regular ink-based pen, with a barrel containing the writing mechanism and a cap, and a reservoir filled with ink. At the end of the ink tube is an ink "follower", made of more viscous gelled material which is usually translucent and follows the water-based ink.
The ideal fountain pen ink is free-flowing, free of sediment, and non-corrosive. These qualities may be compromised in the interests of permanence, manufacturability and in order to use some widely available dyes. [4] A form of ink that predates fountain pens by centuries is iron gall ink. This blue-black ink is made from iron salts and tannic ...
It was founded in 1931 as the "Wolff Pen Manufacturing Company" (上海华孚金笔厂; Shànghǎi huáfú jīnbǐ chǎng), and was renamed in 1966 to the current name. Hero is commonly referred to as "Huáfú" which is the Hanyu Pinyin transliteration of the firm's abbreviated original Chinese name.