Thing!!!(sound)ประตูลิฟท์เปิด เมื่อเอื้อมมือไปกดเลขชั้น ก็ไปโดนปุ่มเล็กๆ มันก็คืออักษร Braille ที่ไว้ใช้สำหรับคนพิการทางสายตาให้เข้าใจสิ่งที่ต้องการสื่อสาร ผมจึงอยากรู้ว่าเค้าอ่านกันด้วยวิธีไหน แล้วระบบตัวพิมพ์เป็นอย่างไร เลยลอง search หาดูจึงนำมาให้ดูกัน เผื่อเอาไว้หัดลองอ่านกันดู ก็เหมือนการเรียนอีกภาษาที่อาจไมต้องใช้สายตาในการอ่าน...The braille system, devised in 1821 by Frenchman Louis Braille, is a method that is widely used by blind people to read and write. Each braille character or cell is made up of six dot positions, arranged in a rectangle containing two columns of three dots each. A dot may be raised at any of the six positions to form sixty-four (26) permutations, including the arrangement in which no dots are raised. For reference purposes, a particular permutation may be described by naming the positions where dots are raised, the positions being universally numbered 1 to 3, from top to bottom, on the left, and 4 to 6, from top to bottom, on the right. For example, dots 1-3-4 would describe a cell with three dots raised, at the top and bottom in the left column and on top of the right column, i.e., the letter m. In braille, pages are separated by a line so that you can feel going across the page.
The braille system was based on a method of communication originally developed by Charles Barbier in response to Napoleon's demand for a code that soldiers could use to communicate silently and without light at night called night writing. Barbier's system was too complex for soldiers to learn, and was rejected by the military; in 1821 he visited the National Institute for the Blind in Paris, France, where he met Louis Braille. Braille identified the major failing of the code, which was that the human finger could not encompass the whole symbol without moving, and so could not move rapidly from one symbol to another. His modification was to use a 6 dot cell — the braille system — which revolutionized written communication for the blind.
The braille system was based on a method of communication originally developed by Charles Barbier in response to Napoleon's demand for a code that soldiers could use to communicate silently and without light at night called night writing. Barbier's system was too complex for soldiers to learn, and was rejected by the military; in 1821 he visited the National Institute for the Blind in Paris, France, where he met Louis Braille. Braille identified the major failing of the code, which was that the human finger could not encompass the whole symbol without moving, and so could not move rapidly from one symbol to another. His modification was to use a 6 dot cell — the braille system — which revolutionized written communication for the blind.
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